研究者データベース

石黒 宗秀(イシグロ ムネヒデ)
農学研究院 基盤研究部門 生物環境工学分野
教授

基本情報

所属

  • 農学研究院 基盤研究部門 生物環境工学分野

職名

  • 教授

学位

  • 農学博士(京都大学)

ホームページURL

J-Global ID

研究キーワード

  • 農地工学   土壌物理学   Soil and Water Engineering   Siol Physics   

研究分野

  • 環境・農学 / 地域環境工学、農村計画学

職歴

  • 2011年04月 - 現在 北海道大学大学院農学研究院 教授
  • 2009年 - 2011年03月 岡山大学大学院環境学研究科 教授
  • 1997年 - 2009年 岡山大学環境理工学部 助教授
  • 2005年04月 - 2005年09月 ワーゲニンゲン大学物理化学およびコロイド科学研究室 客員研究員
  • 1991年 - 1997年 農林水産省農業工学研究所 主任研究官
  • 1993年10月 - 1994年10月 オタワ大学工学部・理学部 客員研究員
  • 1988年 - 1991年 農村水産省農業工学研究所 研究員
  • 1982年 - 1988年 農村水産省農業土木試験場 研究員

学歴

  • 1992年11月 -   京都大学   博士(農学)
  • 1980年04月 - 1982年03月   京都大学   農学研究科修士課程   灌漑排水学
  • 1976年04月 - 1980年03月   京都大学   農学部   農業工学科

所属学協会

  • 日本粘土学会   日本化学会コロイドおよび界面化学部会   日本ペドロジー学会   腐植物質学会   土壌物理学会   国際土壌科学会(International Society of Soil Science)   米国土壌科学会(Soil Science Society of America)   日本土壌肥料学会   農業農村工学会   Soil Science Society of America   International soil Science Society   

研究活動情報

論文

  • 土壌中における溶質の吸着移動現象の基礎理論 Ⅱ.ラングミュアの吸着式
    石黒 宗秀
    土壌の物理性 141 85 - 90 2019年03月 [査読有り][招待有り]
  • 乳牛ふん尿由来のスラリー連用による草地土壌化学性と牧草品質への影響
    桑原淳, 横濱充宏, 大岸 譲, 石黒 宗秀
    農業農村工学会論文集 87 1 73 - 82 2019年 [査読有り][通常論文]
  • Water, solute transport, and interfacial electric phenomena in soils
    石黒 宗秀
    Soil Sci. Plant Nutr. 65 3 223 - 227 2019年 [査読有り][招待有り]
  • 土壌中における溶質の吸着移動現象の基礎理論 Ⅰ.いろいろな吸着式
    石黒 宗秀
    土壌の物理性 140 23 - 28 2018年11月 [査読有り][招待有り]
  • Zigong Ning, Munehide Ishiguro, Luuk K. Koopal, Tsutomu Sato, Jun’ichi Kashiwagi
    Journal of Radioanalytical and Nuclear Chemistry 317 1 409 - 419 2018年07月01日 [査読有り][通常論文]
     
    Adsorption and retardation of Sr2+ by four clays were investigated, which were evaluated by using the distribution coefficient (KD) and average penetration length ratio of Sr2+ to water (r). KD values for Sr2+ among the four clay minerals were in the order: kaolinite < illite < vermiculite ≪ allophane, and Sr2+ penetration length ratio (r) followed the inverse order. Adsorption was further analyzed by using Langmuir adsorption model for competitive Sr2+ and Na+ adsorption at constant NaCl concentration. Conditional affinity constants suggested that Sr2+ adsorption on the variable charge sites of clay edges contributed to the high conditional Sr2+ affinities.
  • 小杉重順, 石黒宗秀
    農業農村工学会論文集 306 63 - 70 2018年 [査読有り][通常論文]
  • Zigong Ning, Pengxiang Li, Shuang Zhou, Yunkai Li, Munehide Ishiguro, Wei Zhao, Meie Wang
    WATER ENVIRONMENT RESEARCH 89 3 274 - 280 2017年03月 [査読有り][通常論文]
     
    Adsorptions of Dimethyl Phthalate (DMP) on three sediments in both reclaimed and ultrapure water were studied using the batch technique and the effects of reclaimed water on it were clarified. The data were interpreted by using Freundlich and Dubinin-Radushkviech models. The values of 1/n were among 0.207 to 0.766, showing the presence of multiple adsorption sites on sediments. Compared with the ultrapure water as the background solution, the adsorption capacities of sediments for DMP were reduced in case of reclaimed water due to the competition of substances in reclaimed water. The mean adsorption energy, E, is smaller in the reclaimed water than that in ultrapure water.
  • Zigong Ning, Munehide Ishiguro, Luuk K. Koopal, Tsutomu Sato, Jun'ichi Kashiwagi
    SOIL SCIENCE AND PLANT NUTRITION 63 1 14 - 17 2017年 [査読有り][通常論文]
     
    Behavior of radioactive strontium (Sr2+) in contaminated soils is an important issue in relation to nuclear power plant accidents. The Sr2+ adsorption on kaolinite and its migration in a kaolinite soil were investigated because toxic effects of radioactive Sr2+ have been found to be very severe for living organisms at low Sr2+ concentrations. Adsorption isotherms of Sr2+ on kaolinite at different salt (NaCl) concentration and pH were obtained by the batch method. The calculated distribution coefficients (K-D) ranged between 600 and 40,000 L kg(-1), which showed a strong preference for the adsorbed phase. The results were used to evaluate the ratio (r) of penetration length of Sr2+ relative to that of water in a model kaolinite soil. When the Sr2+ solution was percolated constantly into the kaolinite soil, the penetration of Sr2+ was delayed strongly at low Sr2+ concentration due to adsorption. The Sr2+ penetration length was only 0.001-0.056 of the water penetration length at pH 6.5 (0.1-10 mmol L-1 NaCl). At pH 4.1 (1 mmol L-1 NaCl) the effect was about 17 times less than at pH 6.5 (1 mmol L-1 NaCl). Under all conditions, the Sr2+ penetration increased when the Sr2+ concentration increased due to the KD decrease. The Sr2+ isotherms could be fitted well to the Langmuir adsorption equation, which indicates that only one site type is involved in the Sr2+ adsorption.
  • 桑原淳, 横濱充宏, 中山博敬, 石黒宗秀
    日本土壌肥料学雑誌 87 6 413 - 421 2016年12月 [査読有り][通常論文]
  • Pengxiang Li, Munehide Ishiguro
    SOIL SCIENCE AND PLANT NUTRITION 62 3 223 - 229 2016年06月 [査読有り][通常論文]
     
    The adsorption of an anionic surfactant sodium dodecyl sulfate (SDS) on a negatively charged silica was studied to provide a better understanding of surfactant adsorption phenomena in an electrostatic repulsion environment between surfactant and soil. The adsorption experiment was conducted under different electrolyte concentration and pH. Results indicated that adsorption happened with hydrophobic interaction, although electrostatic repulsion was generated between SDS and silica surface. The adsorption amount decreased with decreasing electrolyte concentration and increasing pH due to the increase of electrostatic repulsion. The influence of electric potential near the silica surface on the adsorption was confirmed with the modified Langmuir adsorption equation, 1-pK basic Stern model and zeta potential. Because silica is ubiquitous in soils and the water environment, the adsorption characteristics of an anionic surfactant is important when we consider the fate of an anionic surfactant in the environment. The result is also useful when considering the fate of agricultural chemicals which contain negative charge and hydrophobic sites.
  • Munehide Ishiguro, Luuk K. Koopal
    ADVANCES IN COLLOID AND INTERFACE SCIENCE 231 59 - 102 2016年05月 [査読有り][招待有り]
     
    Soils are complex and widely varying mixtures of organic matter and inorganic materials; adsorption of surfactants to soils is therefore related to the soil composition. We first discuss the properties of surfactants, including the critical micelle concentration (CMC) and surfactant adsorption on water/air interfaces, the latter gives an impression of surfactant adsorption to a hydrophobic surface and illustrates the importance of the CMC for the adsorption process. Then attention is paid to the most important types of soil particles: humic and fulvic acids, silica, metal oxides and layered aluminosilicates. Information is provided on their structure, surface properties and primary (proton) charge characteristics, which are all important for surfactant binding. Subsequently, the adsorption of different types of surfactants on these individual soil components is discussed in detail, based on mainly experimental results and considering the specific (chemical) and electrostatic interactions, with hydrophobic attraction as an important component of the specific interactions. Adsorption models that can describe the features semi-quantitatively are briefly discussed. In the last part of the paper some trends of surfactant adsorption on soils are briefly discussed together with some complications that may occur and finally the conse, quences of surfactant adsorption for soil colloidal stability and permeability are considered. When we seek to understand the fate of surfactants in soil and aqueous environments, the hydrophobicity and charge density of the soil or soil particles, must be considered together with the structure, hydrophobicity and charge of the surfactants, because these factors affect the adsorption. The pH and ionic strength are important parameters with respect to the charge density of the particles. As surfactant adsorption influences soil structure and permeability, insight in surfactant adsorption to soil, particles is useful for good soil management. (C) 2016 Elsevier B.V. All rights reserved.
  • 石黒 宗秀
    日本土壌肥料学雑誌 86 5 381 - 386 日本土壌肥料学会 2015年10月 [査読有り][招待有り]
  • Farook Ahmed, Munehide Ishiguro
    SOIL SCIENCE AND PLANT NUTRITION 61 3 432 - 439 2015年05月 [査読有り][通常論文]
     
    Sodium dodecylbenzenesulfonate (DBS) is a very useful and widely used anionic surfactant. This surfactant sometimes creates environmental problems when it is released into the water environment. However, the factors influencing the adsorption of DBS in soil have not been studied well. In this study, the influence of the potential at the adsorption site on the adsorption of DBS in a soil was first elucidated using a theoretical adsorption equation. The soil was a highly humic soil with a negative charge. The amount of DBS adsorbed was measured with a batch method for different electrolyte concentrations of sodium chloride (NaCl) at pH 4.5 and 6.5. The adsorption site potential of the soil was obtained with the modified Langmuir adsorption equation. The adsorption of DBS decreased as the electrolyte concentration decreased and as the pH increased because the repulsive electric potential between DBS and the soil increased. These results were confirmed by the obtained adsorption site potential and the measured electrophoretic mobility. The difference between the adsorption of DBS with a linear and with a branched carbon chain was also detected, and this difference was related to the free energy of micellization. Because DBS adsorption is strongly affected by electrolyte concentration and pH, these two factors must be carefully considered to predict the fate of DBS in soil and water environments.
  • Dung Viet Pham, Munehide Ishiguro, Ha Thu Thi Tran, Tsutomu Sato
    SOIL SCIENCE AND PLANT NUTRITION 60 3 356 - 366 2014年06月 [査読有り][通常論文]
     
    Soil dispersion induces soil erosion and colloidal leaching. Nutrients are lost at the same time and this causes water contamination. Phosphate is an essential element for living organisms. Because phosphate influences soil dispersion and it is an important limited resource, this influence must be evaluated well in order to diminish negative effects on soil structure. In this paper, we firstly evaluated the influence of phosphate sorption on soil dispersion by calculating repulsive potential energy between soil particles. Ferralsol, which is a typical soil in rainy tropical regions, was used as the material. The dispersion-flocculation phenomena were investigated with absorbance of soil suspension under different pH, phosphate adsorption and electrolyte concentration in an Na-NO3-PO4 system. The repulsive potential energy was calculated based on the diffuse double layer theory and the measured zeta potential. We indicated that the measured absorbance increased with the increase of the repulsive potential energy. The repulsive potential energy increased with increasing phosphate sorption up to about 5 to 20 mmol kg(-1) at all pH, and it induced the soil dispersion, because phosphate sorption increased the negative charge of the soil. After its peak, it decreased with increasing phosphate sorption because the electrolyte concentration increased and the electrolyte screened the electric field near the soil surface. The repulsive potential energy also increased with increasing pH because of the increase of the negative charge of the soil. Even at low pH, after a certain amount of phosphate sorption, the soil dispersed due to the increase of repulsive potential energy, although the soil flocculated before phosphate application. Because the soil dispersion causes soil and phosphorus loss, the influence of soil pH and phosphate sorption on the soil dispersion should be considered for good soil management.
  • 石黒宗秀, 大島広行, 小林幹佳, 森崎久雄, 田中俊逸
    日本土壌肥料学雑誌 85 3 274 - 278 2014年06月 [査読有り][招待有り]
  • 鈴木克拓, 石黒宗秀
    日本土壌肥料学雑誌 84 5 411 - 417 2013年10月 [査読有り][招待有り]
  • 石黒 宗秀
    日本土壌肥料学雑誌 84 5 405 - 410 2013年10月 [査読有り][招待有り]
  • Influence of organic matter on the adsorption of sodium dodecylbenzene sulfonate on volcanic ash soil
    Ahmed, F, Ishiguro, M. Akae, T
    Journal of Soil Science and Environmental Management 3 23 - 27 2012年 [査読有り][通常論文]
  • Dissolution of humic substances from highly humic volcanic ash soil as affected by anionic surfactant, electrolyte concentration and pH
    Ahmed, F, Ishiguro, M, Akae, T
    Journal of Environmental Protection 3 280 - 287 2012年 [査読有り][通常論文]
  • Adsorption of sodium dodecylbenzene sulfonate on highly humic non-allophanic Andisol at high-electrolyte concentration
    Ahmed, F, Ishiguro, M, Akae, T
    Journal of the Japanese Society of Soil Physics 120 45 - 54 2012年 [査読有り][通常論文]
  • Munehide Ishiguro, Tomoyuki Makino
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 384 1-3 121 - 125 2011年07月 [査読有り][通常論文]
     
    The mechanisms of SO(4) adsorption on clays have been investigated by many researchers. However, few researches have focused on the fraction of SO(4) that is adsorbed in the diffuse layer to the total adsorbed SO(4). We investigated SO(4) adsorption in detail on an allophanic Andisol (volcanic ash soil.), especially the fraction of SO(4) adsorbed in the diffuse layer to the total adsorbed SO(4), conducting experiments under conditions of low pH (pH 3.3 and 4.3) and low ion concentrations (1.0 and 0.1 mol(c) m(-3)) to avoid a strong negative surface charge of the soil particles. SO(4) and NO(3) adsorption under their competitive conditions were measured by a batch method using mixtures of HNO(3) and H(2)SO(4). Exchangeable SO(4) and NO(3) were extracted with 1000 mol(c) m-3 KCI. Strongly adsorbed SO(4) was extracted with 10 mol(c) m(-3) NaOH after the extraction with 1000 mol(c) m-3 KCI. The exchangeable SO(4) made up to 72-77% of the total adsorbed SO(4). These results suggested that both inner-sphere and outer-sphere complexes co-exist in the allophanic Andisol at low pH. SO(4) was strongly selective over NO(3) under these conditions. We compared adsorbed amounts calculated by the Gouy-Chapman model with the measured values at solution conditions of pH 3.3 and 1.0 mole m-3. The model overestimated NO(3) adsorption and underestimated SO(4) adsorption. The difference is due to the fact that SO(4) adsorption in the Stern layer is neglected. Next, we calculated SO(4) adsorbed in the diffuse layer using the Stern-Gouy-Chapman model under the assumption that all the measured NO(3) adsorbed was in the diffuse layer. Our results indicated that the SO(4) in the diffuse layer made up only less than 6% of the total adsorbed SO(4). Most of the adsorbed SO(4) is likely to be found in direct contact with the soil surface. (C) 2011 Elsevier B.V. All rights reserved.
  • Munehide Ishiguro, Luuk K. Koopal
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 379 1-3 70 - 78 2011年04月 [査読有り][通常論文]
     
    The humic substances (HS) have a high reactivity with other components in the natural environment. An important factor for the reactivity of HS is their negative charge. Cationic surfactants bind strongly to HS by electrostatic and specific interaction. Therefore, a surfactant binding model is developed that takes both the specific and electrostatic interactions explicitly into account. The model is analogous to that of ion binding to HS with the NICA-Donnan model, but competition for the binding sites is not taken into account and the NICA-Donnan model reduces to the Langmuir-Freundlich-Hill-Donnan (LFH-D) model. The parameters of the LFH equation are the maximum binding, the affinity constant and the non-ideality constant. The non-ideality parameter accounts for both the site heterogeneity and the cooperativity due to hydrophobic interaction between surfactant molecules. The affinity constant incorporates the specific (e.g., hydrophobic) interactions between surfactant and HS. The Donnan part of the model accounts in a simple way for the electrostatic interactions by assuming that for a given set of conditions there is only one electrostatic potential that governs the behavior in the Donnan phase. The separation between the specific interactions (LHF) and the electrostatic interactions (D) is based on the so-called master curve (MC) procedure in which the binding is replotted as a function of the "free" surfactant concentration in the Donnan phase. The MC depends only on the specific interactions. Once the MC is obtained it can be fitted to the LFH equation to obtain the model parameters. Subsequently, the surfactant isotherms can be calculated with the LFH-D model. The model is tested using previously obtained data on dodecyl pyridinium chloride (DPC) and cetyl pyridinium chloride (CPC) binding to some purified humic and fulvic acids at pH about 5. The LFH-D model is well suited to describe the surfactant binding to HAs from very low concentrations up to the iso-electric point (IEP). The affinity of DPC for the different HAs allows ranking of the HAs according to their hydrophobicity. Prediction of DPC binding at other pH values also leads to good results for HA. For FAs the model can only describe the surfactant binding up to an adsorbed amount of 0.5 mol/kg. For higher binding values the LFH-D model underestimates the binding. (C) 2010 Elsevier Ky. All rights reserved.
  • 石黒 宗秀
    水土の知 79 5 359 - 362 2011年 [査読有り][通常論文]
  • 赤江剛夫, 濱田浩正, 諸泉利嗣, 石黒宗秀, 守田秀則, 中矢哲郎
    農業農村工学会誌 78 9 775 - 778 2010年09月 [査読有り][通常論文]
  • 石黒 宗秀, Tran Thi Thu Ha, Nguyen Ho Lam
    水土の知 78 7 589 - 592 農業農村工学会 2010年07月 [査読有り][通常論文]
  • Munehide Ishiguro, Luuk K. Koopal
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 347 1-3 69 - 75 2009年09月 [査読有り][通常論文]
     
    Binding of cationic surfactants to anionic polymers is well studied. However, the surfactant binding characteristics at very low concentration near the start of binding and at high concentration, where charge compensation may Occur. are less well known. Therefore, the binding characteristics of hexadecylpyridinium chloride (C(16)PC), dodecyl-pyridinium chloride (C(12)PC) and decyl-pyridinium chloride (C(10)PC) to sodium polystyrene sulfonate (SPSS) are investigated over a wide concentration range. The equilibrium surfactant concentration is measured with a surfactant-selective membrane electrode. The electrode shows good performance for the three surfactants, also in presence of SPSS. The observed critical micelle concentrations (CMCs) of the surfactants as a function of the ionic strength agree well with literature values and the CIVIC is not significantly affected by the presence of SPSS. For each surfactant, binding isotherms are obtained from depletion studies at three different NaCl concentrations. For C(16)PC and C(12)PC the binding isotherms at different NaCl concentration have a common intersection point (CIP) at relatively high surfactant concentration. For C(10)PC the experimental accuracy is too small to observe a CIP. The CIP closely corresponds with the bound amount at the iso-electric point (IEP) of the surfactant-SPSS complex. At the IEP/CIP the charge of SPSS is compensated by bound surfactant ions. In region between the CIP and the CMC the polyelectrolyte charge is overcompensated by surfactant ions. Similar behavior has been found before with the same surfactants and humic acid as polyelectrolyte. At very low surfactant concentrations the C(10)P(+) ions bind on isolated sites along the SPSS chain, the C(12)P(+) ions form some dimers and the C(16)P(+) ions form. already at the lowest concentration that could be measured, aggregates. At somewhat higher concentrations also C(10)PC and C(12)PC start to form small aggregates along the SPSS chain. The concentration at which this occurs is the critical aggregation concentration (CAC). Similarly as the CMC the CAC is a function of the surfactant chain length and the ionic strength. The size of the small aggregates increases with increasing chain length, but hardly depends on the ionic strength. With increasing surfactant concentration the formation of the aggregates along the SPSS chain continues. Electrode calibration at very low concentrations C(16)PC and C(12)PC can be improved when the SPSS-surfactant complex is used to buffer the solutions. (C) 2008 Elsevier B.V. All rights reserved.
  • 石黒 宗秀, 鳥越 崇宏, 亀岡 喜史, 赤江 剛夫
    農業農村工学会論文集 76 6 485 - 491 農業農村工学会 2008年12月 [査読有り][通常論文]
  • Munehide Ishiguro, Tomokazu Fujii
    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 72 3 741 - 749 2008年05月 [査読有り][通常論文]
     
    The influence of surfactants on water infiltration in soil is not fully understood. The objective of this study was to propose a model for evaluating effects of an anionic surfactant on upward infiltration under saturated conditions in porous materials with highly contrasting wettability. The simplified equation for upward infiltration based on Darcy's law is equivalent to the widely used Washburn equation. We experimentally determined upward infiltration of sodium dodecyl sulfate (SDS) solution (0-700 mol m(-3)) into 60-cm-long, 2-cm-diameter columns filled with air-dry materials (glass beads, sand, leaf mold, peat moss, or polyethylene particles). In hydrophilic glass beads and sand, the infiltration rate decreased as the SDS concentration increased due to a decrease in solution surface tension (from 72 to 38 mN m(-1)). The proposed model could describe the infiltration in all materials and at all concentrations when fitting to the initial parts of the curve of infiltration front vs. time. Contact angles were obtained by fitting the model to the measured height of the infiltration front in the saturated range as a function of time. In columns filled with hydrophobic materials, the infiltration rate increased with SIDS concentration, corresponding with a decrease in contact angles from > 125 to 69 degrees for polyethylene particles and from 102 to 43 degrees for peat moss. In leaf mold, the infiltration rate decreased as the SIDS concentration increased, probably due to swelling. The proposed equation was found useful for calculating saturated hydraulic conductivity and contact angles but limited in the case of swelling porous material.
  • Munehide Ishiguro, Wenfeng Tan, Luuk K. Koopal
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 306 1-3 29 - 39 2007年10月 [査読有り][通常論文]
     
    Commercial surfactants are introduced into the environment either through waste products or site-specific contamination. The amphiphilic nature of both surfactants and humic substances (HS) leads to their mutual attraction especially when surfactant and HS are oppositely charged. Binding of the cationic surfactants dodecyl-pyridinium chloride (DPC) and cetyl- or hexadecyl-pyridinium chloride (CPC) to purified Aldrich humic acid (PAHA), Dando humic acid (DHA), Inogashira humic acid (MA), Laurentian fulvic acid (LFA) and Strichen Bs fulvic acid (SFA) is studied at pH 4.5-5 at 0.005 M NaCl. For PAHA CPC binding is also studied at pH 5 and 0.1 M NaCl. Measurements with the Mdtek Particle Charge Detector (PCD) and poly-DADMAC, a strong cationic polyelectrolyte, are used to determine the charge of the HS samples. PCD measurements with the surfactants reveal that the surfactant-HS complexes reach their iso-electric-point (IEP) before the critical micelle concentration (CMC) is reached. At the IEP the adsorption values (mol/g) of CP+ and DP+ to PAHA are the same, i.e. at the IEP the charge associated with the HS is neutralized by bound surfactant ions. For the other humic acids (HAs) CPC binding at the CIVIC corresponds with the charge obtained with poly-DADMAC, but for the fulvic acid (FA) samples CP(C) adsorption at the IEP is larger than the FA charge. The surfactant-HS complexes flocculate around the IEP. Binding isotherms are obtained using surfactant electrodes. The results for CPC and DPC to the HA samples show a pseudo-plateau near the IEP, which is missing in the isotherms to the FA samples. The CP+-PAHA isotherms at 0.005 M and 0.1 M intersect at the IEP. The affinity of CP+ binding to PAHA is larger than that of DP' due to the longer aliphatic tail of CPC. The bound amount of DP(C) decreases in the order PAHA >> IHA approximate to DHA >> LFA approximate to SFA. The results demonstrate that cationic surfactant binding to HS is due both to electrostatic and hydrophobic attraction and that the fate of HS in aqueous environmental systems can be strongly affected by cationic surfactants. (C) 2006 Elsevier B.V. All rights reserved.
  • 赤江 剛夫, 田中 亜弥, 石黒 宗秀
    土壌の物理性 106 11 - 19 土壌物理学会 2007年07月 [査読有り][通常論文]
  • Munehide Ishiguro, Tomoyuki Makino, Yasunobu Hattori
    JOURNAL OF COLLOID AND INTERFACE SCIENCE 300 2 504 - 510 2006年08月 [査読有り][通常論文]
     
    Sulfate strongly adsorbs on metal oxides and soils with variable charges. However, its surface precipitation has not been clearly evaluated and its adsorption mechanism has been in dispute. In the present study, an allophanic andisol, a typical volcanic ash soil having both negative and positive variable charges, was used to identify the adsorption mechanism of sulfate. Sulfate adsorption isotherms were obtained by a batch method at pH values of 4, 5, 6, and 7 in a wide range of concentrations in an Na-H-SO4-OH system. Theoretical isotherms were applied to the measured values for the evaluation. The surface precipitation was detected by the measured adsorption isotherms, and the BET isotherm confirmed the presence of multilayer adsorption. Stronger and weaker adsorption sites were suggested by using the Langmuir isotherm for the monolayer adsorption. The adsorption energies obtained from the Langmuir equation and recent spectroscopic analysis suggested that the stronger adsorption corresponded to an inner-sphere surface complex and that the weaker adsorption corresponded to outer-sphere surface complexation. The BET and Langmuir equations showed three types of adsorption mechanisms for the sulfate adsorption on the soil. (c) 2006 Elsevier Inc. All rights reserved.
  • Ishiguro Munehide, Iwamoto Ryouichi, Hamabe Akiko, Ishida Tomoyuki, Akae Takeo
    Journal of ASTM International 3 6 2006年 [査読有り][通常論文]
     
    As lake sediments are one of the causes of eutrophication, their removal and effective use has been considered. When they are used as soil in a land, proper permeability is required. However, soil permeability has not completely been understood due to diversity of clays and organic compounds. We clarified permeability characteristics of Lake Kojima sediment, nonswelling clayey soil, by measuring saturated hydraulic conductivity (K). A decrease in K during percolation of dilute electrolyte solution was small when Ca was adsorbed by the soil K became 3.4×10-5 cm/s at pH 5, 2.9×10 -5 cm/s at pH 7, 7.5×10-6 cm/s at pH 9, and 2.3×10-5 cm/s at pH 11 after pure water percolation. Although the permeability tended to decrease as pH increased, K at pH 11 became larger than that at pH 9 due to chemical reaction between soil particles and Ca. On the other hand, when Na was adsorbed, K drastically decreased with pH increase K became 7.1×10-6cm/s at pH 5, 3.1×10-6 cm/s at pH 7, 1.7×10-7 cm/s at pH 9, and 1.3×10-7 cm/s at pH 11 after pure water percolation. The obtained results could be explained qualitatively by the theory. Next, an improvement method of permeability of Lake Kojima sediment with hydrated lime and gypsum were investigated. Three application methods were compared in the saturated hydraulic conductivity experiment mixing, surface distribution and solution infiltration. Hydrated lime application with mixing maintained high hydraulic conductivity. The soil structure was supposed to be stabilized by chemical reaction between soil and heterogeneously distributed hydrated lime. On the other hand, gypsum application with solution infiltration maintained the same hydraulic conductivity as that of hydrated lime application with mixing. In that case, electrostatic adsorption of Ca was considered to generate flocculation and kept high permeability. Copyright © 2006 by ASTM International.
  • 赤江 剛夫, 横谷 博, 山本 洋, 石黒 宗秀
    日本砂丘学会誌 51 3 121 - 130 日本砂丘学会 2005年02月 [査読有り][通常論文]
  • Soil Sci. Plant Nutrition 51, pp637-640 2005年 [査読有り][通常論文]
  • ISHIGURO Munehide, FUJII Tomokazu, AKAE Takeo
    農業土木学会論文集 第236号 pp.53-59 2005年 [査読有り][通常論文]
  • 塩水化地下水を持つ砂客土畑土壌の水分と塩分の動態
    日本砂丘学会誌 第51巻第3号pp.121-130 2005年 [査読有り][通常論文]
  • 石黒 宗秀, 服部 保誠, 牧野 知之, 赤江 剛夫
    農業土木学会論文集 72 2 187 - 192 農業土木学会 2004年04月 [査読有り][通常論文]
  • ISHIGURO Munehide, FUJII Tomokazu
    農業土木学会論文集 第230号 2004年 [査読有り][通常論文]
  • 吸着等温線によるアロフェン質火山灰土への硫酸吸着機構の考察
    農業土木学会論文集 第230号pp.69-74 2004年 [査読有り][通常論文]
  • M Ishiguro, Y Manabe, S Seo, T Akae
    SOIL SCIENCE AND PLANT NUTRITION 49 2 249 - 254 2003年04月 [査読有り][通常論文]
     
    The contamination of groundwater by nitrate has become a worldwide problem. About 50% of the non-rice-producing crop areas are covered with volcanic ash soils in Japan. Therefore, it is important to analyze the nitrate movement in such soils for the conservation of groundwater quality. We investigated the nitrate transport in volcanic ash soils sampled from the A and the B horizons under competitive conditions with sulfate. Miscible displacement experiments were carried out using a soil column 13-cm long and 5-cm in inside diameter. Nitrate was eluted before 1 pore volume of discharge from the A horizon soil column due to anion exclusion. On the other hand, its movement was retarded in the B horizon soil column because of electrostatic adsorption. When sulfate was adsorbed on the soil before the percolation of the nitrate solution, nitrate percolation became faster than that in the absence of sulfate adsorption. When the nitrate solution contained sulfate, nitrate moved much more faster. These faster nitrate elutions were due to the competition of adsorption with sulfate. Some sulfate was strongly adsorbed on the soil and it was not easily exchanged with nitrate in the B horizon soil. It was gradually desorbed and discharged from the soil column during the percolation of the nitrate solution. Sulfate was slightly adsorbed on the soil of the A horizon, although no positive charges were observed. The nitrate for 10 mol(c) m(-3) solution flowed faster than that for the 1 mol(c) m(-3) solution in the B horizon soil, because the solid-liquid distribution ratio for the 10 mol(c) m(-3) solution was smaller than that for the 1 mol(c) m(-3) solution. Because sulfate increased the nitrate flow rate in the B horizon soil, application of sulfate to the soil is not recommended from the viewpoint of nitrate contamination.
  • ISHIGURO Munehide, HAMABE Akiko, AKAE Takeo
    農業土木学会論文集 70 5 575 - 580 2002年10月25日 [査読無し][通常論文]
  • AKAE Takeo, GOTO Mitsuki, ISHIGURO Munehide
    農業土木学会論文集 70 3 357 - 364 2002年06月25日 [査読無し][通常論文]
  • ISHIGURO Munehide, IWAMOTO Ryouichi, ISHIDA Tomoyuki, AKAE Takeo
    農業土木学会論文集 69 6 771 - 776 2001年12月25日 [査読無し][通常論文]
  • M Ishiguro, T Nakajima
    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 64 3 813 - 818 2000年05月 [査読有り][通常論文]
     
    fWhen the soil contains a substantial amount of pH-dependent charges, pH strongly influences hydraulic conductivity. Adverse effects of acid rain and chemicals on soils have been observed, but few studies have focused on hydraulic conductivity change due to pH. Changes to the saturated hydraulic conductivity (K) of allophanic andisol (volcanic ash soil), which has a substantial amount of pH-dependent charges, during dilute acid leaching were examined in this study. K was determined at a constant hydraulic gradient in soil columns. Influent solutions of HNO3 and H2SO4 were prepared at pH 3 and 4. Tensiometer pressure potential and pH distribution in the soil columns were measured. Clay dispersion was measured by optical transmission and soil buffer capacity was evaluated from acid titration curves. K decreased during HNO3 leaching but increased during H2SO4 leaching. Because of the high buffer capacity of the soil, the influence of acid leaching on the soil structure was significant only at the soil surface. Soil dispersion was observed only in HNO3 solution. No dispersion was observed in H2SO4 solution because of the strong specific adsorption of SO42-. The swelling and dispersion of the soil at the surface layer caused the decrease in K during HNO3 leaching, while these processes were prevented in H3SO4 leaching.
  • 農業土木学会誌 68 75 - 82 2000年 [査読有り][通常論文]
  • 水溶性高分子の環境技術への適用
    農業土木学会誌 67 2 47 - 54 1999年 [査読有り][通常論文]
  • M Ishiguro, T Matsuura, C Detellier
    SEPARATION SCIENCE AND TECHNOLOGY 31 4 545 - 556 1996年 [査読有り][通常論文]
     
    A montmorillonite membrane with a thickness of 0.5 mm was prepared, and reverse osmosis experiments, were conducted for various inorganic and organic solutes of different sizes under an operating pressure of 3 MPa. The mean pore size and pore size distribution were determined by a log-normal probability plot between the solute separation and the Einstein-Stokes radius of the solute molecules for which reverse osmosis and ultrafiltration performance was investigated. The relationships between the pore size and the pore size distribution and the structure of montmorillonite are discussed. A comparison is also made between the pore size and the thickness of the electrical double layer.
  • Journal of Membrane Science Vol.107 pp.87-92 1995年 [査読有り][通常論文]
  • Hydraulic conductivity of an allophanic andisol as affected by solution pH
    Journal of Environmental Quality Vol.23 pp.208-210 1994年 [査読有り][通常論文]
  • 日本土壌肥料学雑誌 65 3 349 - 356 1994年 [査読有り][通常論文]
  • 農業土木学会誌 62 2 121 - 126 1994年 [査読有り][通常論文]
  • M ISHIGURO, KC SONG, K YUITA
    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 56 6 1789 - 1793 1992年11月 [査読有り][通常論文]
     
    Because the density of variable charge in a soil is influenced by the solution concentration and the pH, exchanging ion transport in the soil is also affected by them. In this study, the effect of variable charge on exchanging ion transport in an allophanic Andisol (Typic Hydrudand) that has negative and positive variable charges was investigated experimentally. Miscible-displacement experiments were conducted under saturated and unsaturated (-1.96 kPa of soil water pressure) conditions. The cases studied here involved ion exchange under a constant total concentration condition and a constant pH condition. A SrBr2 solution was applied to the soil column, which was initially saturated with a CaCl2 solution. The miscible-displacement experiments were carried out at different total concentration (0.001-0.1 mol(c) L-1) and pH (4.2-7.65). Bromine flowed out slowly at lower pH due to the large anion-exchange capacity (AEC). Strontium discharged slowly at higher pH due to the large cation-exchange capacity (CEC). The counterion penetrated slowly at a lower concentration because the amount of the counterion contained in a unit of solution volume was small. Observed breakthrough curves (BTCs) agreed with those expected from measured exchange isotherms. Based on the relationship between the Sr BTC and the Br BTC, no notable differences were observed between the BTCs under saturated conditions and those under unsaturated conditions. The influence of the solution concentration and the pH cannot be ignored when considering ion transport in an allophanic Andisol.
  • M ISHIGURO
    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 56 6 1738 - 1743 1992年11月 [査読有り][通常論文]
     
    Exchanging ionic-solute transport through soil columns is significantly affected by ion exchange reaction. The breakthrough curve (BTC) for the input ion based on time or pore volume shifts to the right as the ion-exchange capacity increases or the input ion concentration decreases. The shapes of the BTCs with different mean breakthrough times are easily compared when the BTCs are normalized by the mean breakthrough times. The influence of the distribution ratio, D(g), the ratio of the amount of ions adsorbed in the soil to that in the solution in a unit volume of the soil, on normalized BTCs with nonlinear exchange isotherms was evaluated. The cases studied here involved ion exchange in a binary system at a constant total concentration under steady-state water-flux conditions. The BTCs were calculated and interpreted using a normalized, one-dimensional advective-dispersive equation. It was determined that the effect of the nonlinear isotherm on the BTC increases as D(g) increases. It was also shown that, when D(g) is much greater than unity, an increase in D(g) has no effect on the BTC. These results were confirmed with experimental data on actual soil columns of an allophanic Andisol. When the BTCs had a similar nonlinear exchange isotherm and Peclet number, the deviations among them were easily interpreted by the D(g) values.
  • KC SONG, M ISHIGURO
    SOIL SCIENCE AND PLANT NUTRITION 38 3 477 - 484 1992年09月 [査読有り][通常論文]
     
    We performed breakthrough experiments for an Allophanic Andisol under saturated and unsaturated conditions. The experiments were carried out under several different pH conditions. The AEC and the CEC of an Allophanic Andisol under different pH conditions were measured using the batch method of Wada and Okamura. The values were compared with those obtained in the breakthrough experiments. No significant difference was observed between them. The results indicated that there was an adequate exchange of counterions during the movement through the soil in the breakthrough experiments. The breakthrough curves showed the effects of the solution pH on the ion transport in soil. The pH affected the charge density and the charge density significantly influenced the movement of counterions in the soil. Another effect of the pH on ion transport was observed in the breakthrough curves as a function of "apparent pore volume." The pH also affected the hydraulic conductivity. The hydraulic conductivity at a low pH was very low due to the dispersion of the soil particles. The breakthrough curves under saturated conditions were compared with those under unsaturated conditions (- 1.96 kPa of soil water potential). No significant difference was observed between them.
  • Solute transport through hard pans of paddy fields: 2.Cation exchange processes
    Soil Science Vol.153 No.1 pp.42-46 1992年 [査読有り][通常論文]
  • Solute transport through hard pans of paddy fields: 1.Effect of vertical tubular pores made by rice roots on solute transport
    Soil Science Vol.152 No.6 pp.432-439 1991年 [査読有り][通常論文]
  • 水田耕盤・心土粗間隙の期別変化
    農業土木学会論文集 142 107 - 108 1989年 [査読有り][通常論文]
  • 農業土木学会誌 56 10 1017 - 1024 1988年 [査読有り][通常論文]
  • 農業土木学会論文集 125 19 - 25 1986年 [査読有り][通常論文]
  • 農業土木学会論文集 102 36 - 43 1982年 [査読有り][通常論文]

書籍

  • 土壌と界面電気現象:基礎から土壌汚染対策まで
    石黒 宗秀 (担当:編者(編著者))
    博友社 2017年 (ISBN: 9784826802253)
  • Encyclopedia of Biocolloid and Biointerface Science
    石黒 宗秀 (担当:分担執筆範囲:Soil interfacial electric phenomena, pp.979-993)
    John Wiley and Sons 2016年
  • 白戸 康人, 豊田 剛己, 平舘 俊太郎, 舟川 晋也, 矢内 純太, 石黒 宗秀, 土壌肥料学会, 土のひみつ編集グループ, 日本土壌肥料学会, 土のひみつ編集グループ (担当:分担執筆範囲:土の間隙と保水・排水-水を吸う土・はじく土-)
    朝倉書店 2015年09月 (ISBN: 4254400233) 228
  • 環境における界面活性現象と環境保全への応用技術 「表面・界面工学大系下巻」
    テクノシステム 2005年
  • Hydraulic Conductivity of an Andisol Leached with Mixture of Dilute Acids, in Clay Science for Engineering
    Balkema 2001年
  • 「土のコロイド現象―土・水の物理化学と工学的基礎―」
    学会出版センター 2000年
  • ファイテクHow to みる・きく・はかる 植物環境計測
    養賢堂 1999年
  • 土の環境圏 (共著)
    フジ・テクノシステム 1997年
  • Paddy fields in the world
    農業土木学会 1995年
  • Paddy fields in the world (共著)
    1995年
  • 地域環境と潅漑排水
    畑地農業振興会 1994年
  • Physical measurements in flooded rice soils (jointly worked)
    International Rice Research Institute 1987年
  • Physical measurements in flooded rice soils (共著)
    International Rice Research Institute 1987年

講演・口頭発表等

  • The effect of inter-tillage weeding and no-tillage on the distribution of nitrogen-fixing microorganisms in natural farming rice paddy  [通常講演]
    J.F.Lin, E.M.L. Minarsch, M. Ishiguro, Y. Uchida
    日本生態学会北海道地区大会 2019年11月 ポスター発表
  • Investigation of how inter-tillage weeding and no-tillage affect distribution of Nitrogen fixation microbes within Natural Farming rice paddy  [通常講演]
    Lin, J.F., E.M.L.Minarsch, M. Ishiguro, Y. Uchida
    14th International Conference of the East and Southeast Asian Federation of Soil Science Societies 2019年11月 口頭発表(一般)
  • 無肥料無農薬中耕除草水田における窒素の動態:2018・2019年  [通常講演]
    周佩陽, 石黒宗秀, 柏木淳一, 荒木肇, Soluttanabong, V.
    土壌物理学会大会 2019年10月 ポスター発表
  • 無肥料無農薬水田における表層土壌の変化とメタン排出  [通常講演]
    沼館知也, 波多野隆介, 石黒宗秀
    土壌肥料学会大会 2019年09月 ポスター発表
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: First year result  [通常講演]
    Soluttanabong. V., 石黒宗秀, 柏木淳一, 荒木肇, 周佩陽
    土壌肥料学会大会 2019年09月 ポスター発表
  • Effect of water flux on anionic surfactant transport in highly humic soil  [通常講演]
    Li, Ailin, M. Ishiguro, S. Kosugi
    土壌肥料学会大会 2019年09月 ポスター発表
  • 北海道大学有機・慣行水田における昆虫相の年間・季節間変動  [通常講演]
    中﨑蒼太, 笠井華乃, 野口創一朗, 石黒宗秀, 秋元信一
    北海道応用動物・昆虫研究会 2019年01月 口頭発表(一般)
  • 北海道大学有機水田で採集されたセジロウンカ雌に見られる翅2型の頻度推移  [通常講演]
    笠井華乃, 中崎蒼太, 秋元信一, 石黒宗秀
    北海道応用動物・昆虫研究会 2019年01月 口頭発表(一般)
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: 3. Phosphorus dynamics  [通常講演]
    Y. Tsukakubo, M. Ishiguro, J. Kashiwagi, S. Kobayashi, S. Kosugi, Soluttanavong V, P. Zhou
    PAWEES International Conference 2018年11月 ポスター発表
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: 1. Rice growth and yield  [通常講演]
    Soluttanavong, V, H. Araki, M. Ishiguro, J. Kashiwagi, S. Kobayashi, Y. Tsukakubo, P. Zhou
    PAWEES International Conference 2018年11月 ポスター発表
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: 2. Nitrogen dynamics  [通常講演]
    Zhou, P, M. Ishiguro, J. Kashiwagi, S. Kobayashi, Y. Tsukakubo, V. Soluttanavong
    PAWEES International Conference 2018年11月 ポスター発表
  • Phosphate adsorption on soil colloids: Batch experiment and surface complexation modeling  [通常講演]
    Shigeyori Kosugi, Keisuke Fukushi, Munehide Ishiguro
    PAWEES International Conference 2018年11月 ポスター発表
  • Influence of water flux on anionic surfactant (sodium dodecylbenzenesulfonate) transport in highly humic soil  [通常講演]
    Ailin, Li, Munehide Ishiguro, Shigeyori Kosugi
    PAWEES International Conference 2018年11月 ポスター発表
  • 無肥料・無農薬中耕除草水田における養分動態  [通常講演]
    塚窪裕梨, 小林静紗, VhanKham Soluttanavong, Peiyang Zhou, 石黒宗秀, 柏木淳一, 荒木肇
    農業農村工学会北海道支部大会 2018年11月 口頭発表(一般)
  • Influence of Contact Time on Anionic Surfactant (Sodium dodecylbenzensulfonate) Transport in Highly Humic Soil under Different Water Flux  [通常講演]
    Ailin Li, Munehide Ishiguro, Shigeyori Kosugi
    土壌物理学会大会 2018年10月 ポスター発表
  • 水田の酸化還元電位変化及び窒素循環への中耕除草の影響  [通常講演]
    小林静紗, 石黒宗秀, 柏木淳一, 塚窪裕梨, VhanKham Soluttanavong, Peiyang Zhou
    土壌物理学会大会 2018年10月 ポスター発表
  • 表面錯体モデルによるゲータイトの表面荷電モデリング  [通常講演]
    小杉重順, 福士圭介, 石黒宗秀
    土壌物理学会大会 2018年10月 ポスター発表
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: 1. Rice growth and yield  [通常講演]
    Soluttanavong, V, H. Araki, M. Ishiguro, J. Kashiwagi, S. Kobayashi, Y. Tsukakubo, P. Zhou
    土壌物理学会大会 2018年10月 ポスター発表
  • Study of inter-tillage weeding in paddy field without fertilizer and agricultural chemical: 2. Nitrogen dynamics  [通常講演]
    Zhou, P, M. Ishiguro, J. Kashiwagi, S. Kobayashi, Y. Tsukakubo, V. Soluttanavong
    土壌物理学会大会 2018年10月 ポスター発表
  • Sodium Dodecylbenzenesulfonate transport in highly humic soil: influence of water flux  [通常講演]
    Ailin Li, Munehide Ishiguro, Shigeyori Kosugi
    コロイドおよび界面化学討論会 2018年09月 ポスター発表
  • 粘土コロイドの分散凝集性:表面錯体モデリングによる解析  [通常講演]
    小杉重順, 石黒宗秀, 福士圭介
    コロイドおよび界面化学討論会 2018年09月 ポスター発表
  • 土壌へのラングミュア吸着式の適用  [通常講演]
    石黒 宗秀
    農業農村工学会大会 2018年09月 口頭発表(一般)
  • 土壌中における水・溶質移動と界面電気現象に関する研究  [招待講演]
    石黒 宗秀
    土壌肥料学会大会 2018年08月 口頭発表(招待・特別)
  • 無肥料・無農薬多数回中耕除草水田の養分動態  [通常講演]
    小林静紗, 小田島毅尚, 塚窪裕梨, 柏木淳一, 石黒宗秀
    土壌肥料学会北海道支部大会 2017年11月 ポスター発表
  • 無肥料・無農薬多数回中耕除草水田の養分動態  [通常講演]
    小林静紗, 小田島毅尚, 塚窪裕梨, 柏木淳一, 石黒宗秀
    土壌物理学会大会 2017年10月 ポスター発表
  • リン酸吸着が粘土コロイドの分散凝集性に与える影響  [通常講演]
    小杉重順, 石黒宗秀
    土壌物理学会大会 2017年10月 ポスター発表
  • Sr,SO4,アニオン性界面活性剤吸着へのラングミュア式の適用  [通常講演]
    石黒 宗秀
    土壌肥料学会大会 2017年09月 口頭発表(一般)
  • 吸光度法による土壌コロイドの分散凝集性評価:リン酸吸着の影響  [通常講演]
    小杉重順, 石黒宗秀
    農業農村工学会大会 2017年08月 口頭発表(一般)
  • Langmuir equations for Sr, sulfate and surfactant adsorptions  [通常講演]
    石黒 宗秀
    Annual Meeting of Soil Science Society of America 2016年11月 口頭発表(一般)
  • Strontium Penetration and adsorption in clays  [通常講演]
    Ning, Munehide Ishiguro, Luuk K. Koopal, Tsutomu Sato, Jun’ichi Kashiwagi
    Japanese Society of Soil Physics 2016年10月 ポスター発表
  • 土壌の分散凝集とその影響  [招待講演]
    石黒 宗秀
    コロイドおよび界面化学討論会 2016年09月 口頭発表(招待・特別)
  • アニオン性界面活性剤の黒ぼく土中における吸着移動  [通常講演]
    石黒宗秀, 森口一輝, 大月遥, 鳥越崇宏
    土壌肥料学会大会 2016年09月 口頭発表(一般)
  • 土壌中における溶質の吸着移動現象とその課題  [招待講演]
    石黒 宗秀
    日本分析化学会年会 2016年09月 口頭発表(招待・特別)
  • Strontium adsorption on kaolinite at low concentration  [通常講演]
    Zigong Ning, Munehide Ishiguro, Tsutomu Sato, Jun’ichi Kashiwagi, Luuk K. Koop
    Interface Against Pollution 2016 2016年09月 ポスター発表
  • Adsorption of Sodium Dodecylsulfate and Dodecylpyridinium Chloride on Silica  [通常講演]
    Pengxiang Li, Munehide Ishiguro, Luuk K. Koopa
    Interface Against Pollution 2016 2016年09月 ポスター発表
  • Phosphate adsorption on kaolinite and its effect on the kaolinite stability at various solution conditions  [通常講演]
    Shigeyori Kosugi, Munehide Ishiguro, Luuk K. Koopa
    Interface Against Pollution 2016 2016年09月 ポスター発表
  • カオリナイトへのリン酸吸着:分散凝集特性の変化と表面錯体モデルによる解析  [通常講演]
    小杉重順, 石黒宗秀, Luuk K. Koop
    農業農村工学会大会 2016年09月 ポスター発表
  • Strontium adsorption on clays  [通常講演]
    Zigong Ning, Munehide Ishiguro, Luuk K. Koopa
    Hokkaido Agricultural Science Conference 2016 2016年08月 ポスター発表
  • リン酸吸着がカオリナイト懸濁液の分散凝集性に及ぼす影響とその評価  [通常講演]
    小杉重順, 石黒宗秀, 木崎隆弘
    サマースクール土・水・生命環境とコロイド界面現象2016 2016年07月 ポスター発表
  • 変異荷電を考慮したラングミュア吸着式によるカオリナイトへのリン酸吸着のモデル化  [通常講演]
    小杉重順, 石黒宗秀, コパル・ルーク
    日本土壌肥料学会北海道支部秋季大会 2015年12月 口頭発表(一般)
  • 小杉 重順, 石黒 宗秀, 木崎 隆弘
    Irrigation, Drainage, Rural Engineering, Hokkaido Meeting 2015年10月 口頭発表(一般)
  • Strontium adsorption on kaolinite at low concentration  [通常講演]
    Zigong Ning, Munehide Ishiguro, Tsutomu Sato, Jun’ichi Kashiwagi
    土壌物理学会大会 2015年10月 ポスター発表
  • Adsorption of Anionic Surfactant (Sodium Dodecyl Sulfate) on Silica  [通常講演]
    Pengxiang Li, Munehide Ishiguro
    土壌物理学会大会 2015年10月 ポスター発表
  • リン酸吸着がカオリナイト懸濁液の分散凝集性に及ぼす影響とその評価  [通常講演]
    小杉重順, 石黒宗秀, 木崎隆弘
    土壌物理学会大会 2015年10月 ポスター発表
  • 桑原 淳, 横濱 充宏, 中山 博敬, 石黒 宗秀
    日本土壌肥料学会講演要旨集 2015年09月 口頭発表(一般)
  • 腐植物質・土壌と界面活性剤の相互作用と移動現象  [招待講演]
    石黒 宗秀
    農業農村工学会大会講演会 2015年09月 口頭発表(招待・特別)
  • 小杉重順, 石黒宗秀, コパル・ルーク
    粘土科学討論会 2015年09月 口頭発表(一般)
  • Surfactant Adsorption and Transport in a Humic Soil  [招待講演]
    石黒 宗秀
    Tsukuba Global Science Week 2014 2014年09月 口頭発表(招待・特別)
  • 小林大介, 石黒宗秀, 長谷川周一, 永田修
    農業農村工学会大会講演会 2014年08月
  • 大月 遥, 石黒 宗秀
    農業農村工学会大会講演会 2014年08月 口頭発表(一般)
  • Influence of Phosphate Sorption on Dispersion and Flocculation of Kaolinite  [通常講演]
    Shigeyori Kosugi, Takahiro Kisaki, Munehide Ishiguro
    World Congress of Soil Science 2014年06月 ポスター発表
  • Adsorption of Anionic Surfactant on Silica  [通常講演]
    Pengxiang Li, Munehide Ishiguro
    World Congress of Soil Science 2014年06月 ポスター発表
  • Effect of phosphate sorption on Ferralsol soil dispersion: Evaluation with stability ratio and repulsive potential energy  [通常講演]
    Dung Viet Pham, Munehide Ishiguro, Ha Thu Thi Tran
    World Congress of Soil Science 2014年06月 ポスター発表
  • Effect of phosphate sorption on Ferralsol soil dispersion: Evaluation with stability ratio and repulsive potential energy  [通常講演]
    Dung Viet Pham, Munehide Ishiguro, Ha Thu Thi Tran
    Interfaces Against Pollution 2014 2014年05月 口頭発表(一般)
  • Adsorption of Anionic Surfactant on Silica  [通常講演]
    Pengxiang Li, Munehide Ishiguro
    Interfaces Against Pollution 2014 2014年05月 ポスター発表
  • Adsorption of sodium dodecylbenzene sulfonate in highly humic volcanic ash soil  [通常講演]
    Farook Ahmed, Munehide Ishiguro
    Interfaces Against Pollution 2014 2014年05月 口頭発表(一般)
  • アニオン界面活性剤の多腐植質黒ぼく土中における吸着移動  [通常講演]
    大月遥, 石黒宗秀
    日本化学会コロイドおよび界面化学部会 2013年09月 ポスター発表
  • Influence of phosphate sorption on dispersion in mono- and divalent ion salts in a Ferralsol Soil  [通常講演]
    D. V. PHAM, M. ISHIGURO, T.T.H. TRAN
    Japan-Australia symposium, Divisional Meeting on Colloid and Interface Chemistry 2013年09月 口頭発表(一般)
  • リン酸吸着がカオリナイトの分散凝集に与える影響  [通常講演]
    木崎隆弘, 石黒宗秀, 小杉重順
    日本土壌肥料学会大会講演会 2013年09月 ポスター発表
  • 土壌における界面電気現象と農業・環境  [招待講演]
    石黒 宗秀
    土壌肥料学会大会講演会 2013年09月 シンポジウム・ワークショップパネル(指名)
  • 石黒 宗秀, 森口 一輝, 石岡 亜希子
    日本土壌肥料学会講演要旨集 2009年09月
  • 石黒 宗秀, 杉山 真也, 鳥越 崇宏, 亀岡 喜史
    日本土壌肥料学会講演要旨集 2008年09月
  • 石黒 宗秀, 亀岡 善史
    日本土壌肥料学会講演要旨集 2007年08月
  • 最上 怜奈, 石黒 宗秀, 牧野 知之, 服部 保誠
    日本土壌肥料学会講演要旨集 2004年09月
  • 石黒 宗秀, 藤井 知和
    日本土壌肥料学会講演要旨集 2004年09月
  • 石黒 宗秀, 中澤 美帆
    日本土壌肥料学会講演要旨集 2003年08月
  • 石黒 宗秀, 瀬尾 祥治, 眞鍋 優子
    日本土壌肥料学会講演要旨集 2002年03月
  • 石黒 宗秀, 中石 克也, 牧野 知之, 中島 伴
    日本土壌肥料学会講演要旨集 2001年03月
  • 石黒 宗秀, 牧野 知之, 中島 伴, 村木 明子
    日本土壌肥料学会講演要旨集 1999年07月
  • Effects of shrinkage and swelling of soils on water management in paddy fields  [通常講演]
    Proceedings of the International Work- shop held at the Asian Institute of Technology 1992年
  • 西アフリカの水田-コートジボアールとセネガル北部- (共著)  [通常講演]
    農業土木学会土壌物理研究部会・海外水田工学特別研究委員会共催シンポジウム講演要旨集 1992年
  • 土壌の孔隙構造・荷電特性と溶質移動  [通常講演]
    農業土木学会土壌物理研究部会第28回研究集会報告集 1989年

その他活動・業績

  • Munehide Ishiguro, Ryouichi Iwamoto, Akiko Hamabe, Tomoyuki Ishida, Takeo Akae ASTM Special Technical Publication 119 -126 2006年01月01日 [査読無し][通常論文]
     
    As lake sediments are one of the causes of eutrophication, their removal and effective use has been considered. When they are used as soil in a land, proper permeability is required. However, soil permeability has not completely been understood due to diversity of clays and organic compounds. We clarified permeability characteristics of Lake Kojima sediment, nonswelling clayey soil, by measuring saturated hydraulic conductivity (K). A decrease in K during percolation of dilute electrolyte solution was small when Ca was adsorbed by the soil; K became 3.4×10-5 cm/s at pH 5, 2.9×10 -6 cm/s at pH 7, 7.5×10-6 cm/s at pH 9, and 2.3×10-5 cm/s at pH 11 after pure water percolation. Although the permeability tended to decrease as pH increased, K at pH 11 became larger than that at pH 9 due to chemical reaction between soil particles and Ca. On the other hand, when Na was adsorbed, K drastically decreased with pH increase; K became 7.1 ×10-6 cm/s at pH 5, 3.1 × 6 cm/s at pH 7, 1.7×10'7 cm/s at pH 9, and 1.3×10-7 cm/s at pH 11 after pure water percolation. The obtained results could be explained qualitatively by the theory. Next, an improvement method of permeability of Lake Kojima sediment with hydrated lime and gypsum were investigated. Three application methods were compared in the saturated hydraullc conductivity experiment; mixing, surface distribution and solution infiltration. Hydrated lime application with mixing maintained high hydraulic conductivity. The soil structure was supposed to be stabilized by chemical reaction between soil and heterogeneously distributed hydrated lime. On the other hand, gypsum application with solution infiltration maintained the same hydraulic conductivity as that of hydrated lime application with mixing. In that case, electrostatic adsorption of Ca was considered to generate flocculation and kept high permeability. Copyright © 2006 by ASTM International.
  • M Ishiguro, K Nakaishi, T Nakajima COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 230 (1-3) 81 -88 2003年12月 [査読無し][通常論文]
     
    Acid rain is supposed to influence soil structures, because soils have pH-dependent charges. The adverse effects of acid rain on soils must be assessed. Although repulsive potential energy among soil clay particles generates swelling and dispersion, thereby changing the soil's hydraulic conductivity, the relationship between hydraulic conductivity and repulsive potential energy has not been evaluated. Moreover, research into repulsive potential energy in multivalent counterionic systems has been rare. In this paper, repulsive potential energies for a volcanic ash soil (allophanic Andisol), which is characterized by a number of pH-dependent charges, were evaluated in a multivalent counterionic system. Changes in saturated hydraulic conductivity (K) of volcanic ash soil during dilute acid leaching and their relationship with the repulsive potential energies were examined. When nitric acid at pH 3 or 4 was leached. K decreased rapidly. On the other hand, the decrease in K attenuated as the proportion of sulfate in the dilute acid increased. Electrophoretic mobilities were measured and the zeta potentials were estimated. From the zeta potentials and the calculation of repulsive potential energies between the clay particles in the NO3-SO4 system, we concluded that the decrease in K for an acid solution with a high proportion of nitrate was due to swelling and dispersion of the soil induced by electrostatic repulsive potential energy. Because sulfate formed complexes on the clay surface, the repulsive potential energy decreased as the proportion of sulfate in the dilute acid increased. Then, the flocculation of the soil was maintained, thereby inhibiting the decrease in K. (C) 2003 Elsevier B.V. All rights reserved.
  • Nitrate transport in volcanic ash soil of A and B horizons affected by sulfate (jointly worked)
    Soil Science and Plant Nutrition Vol.49, pp.249-254 2003年 [査読無し][通常論文]
  • 石黒 宗秀 農業土木学会誌 = Journal of the Agricultural Engineering Society, Japan 70 (7) 655 -656 2002年07月01日 [査読無し][通常論文]
  • Hydraulic Conductivity of an Andisol Leached with Mixture of Dilute Acids
    Clay Science for Engineering pp. 315-320 2001年 [査読無し][通常論文]
  • M Ishiguro, T Nakajima SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 64 (3) 813 -818 2000年05月 [査読無し][通常論文]
     
    fWhen the soil contains a substantial amount of pH-dependent charges, pH strongly influences hydraulic conductivity. Adverse effects of acid rain and chemicals on soils have been observed, but few studies have focused on hydraulic conductivity change due to pH. Changes to the saturated hydraulic conductivity (K) of allophanic andisol (volcanic ash soil), which has a substantial amount of pH-dependent charges, during dilute acid leaching were examined in this study. K was determined at a constant hydraulic gradient in soil columns. Influent solutions of HNO3 and H2SO4 were prepared at pH 3 and 4. Tensiometer pressure potential and pH distribution in the soil columns were measured. Clay dispersion was measured by optical transmission and soil buffer capacity was evaluated from acid titration curves. K decreased during HNO3 leaching but increased during H2SO4 leaching. Because of the high buffer capacity of the soil, the influence of acid leaching on the soil structure was significant only at the soil surface. Soil dispersion was observed only in HNO3 solution. No dispersion was observed in H2SO4 solution because of the strong specific adsorption of SO42-. The swelling and dispersion of the soil at the surface layer caused the decrease in K during HNO3 leaching, while these processes were prevented in H3SO4 leaching.
  • 石黒 宗秀 農業土木学会誌 = Journal of the Agricultural Engineering Society, Japan 68 (4) 2000年04月01日 [査読無し][通常論文]
  • Hydraulic Conductivity of an Allophanic Andisol Leacher with Mixture of Dilute Sulfuric and Nitric Acids
    Soil Sci. Soc. America, Annual Meetings Abstracts 2000 200 2000年 [査読無し][通常論文]
  • Thermodynamics of Wetting and Contact Angles
    Journal of the Japanese Society Irrigation,Drainage and Reclamation Engineering 68 75 -82 2000年 [査読無し][通常論文]
  • 石黒 宗秀, コパル ルーク 農業土木学会誌 = Journal of the Agricultural Engineering Society, Japan 68 (1) 75 -82 2000年01月01日 [査読無し][通常論文]
  • 松本 哲洋, 足立 泰久, 石黒 宗秀 農業土木学会誌 = Journal of the Agricultural Engineering Society, Japan 67 (2) 47 -54 1999年02月01日 [査読無し][通常論文]
  • Application of water-soluble polymer to environmental technology
    67 (2) 47 -54 1999年 [査読無し][通常論文]
  • Permeability of allophanic andisol and its dispersion, flocculation and zeta potential
    334 1998年 [査読無し][通常論文]
  • Hydraulic conductivity of an allophanic andisol affected by solution pH and ion species
    Summaries of 16th World Congress of Soil Science 1 85 1998年 [査読無し][通常論文]
  • Permeability of sediment of Lake Kojima-Effects of pH and ion species(Na, Ca)-
    642 -643 1998年 [査読無し][通常論文]
  • Effect of sulfate adsorption on hydraulic conductivity of allophanic andisol
    648 -649 1998年 [査読無し][通常論文]
  • M Ishiguro, T Matsuura, C Detellier SEPARATION SCIENCE AND TECHNOLOGY 31 (4) 545 -556 1996年 [査読無し][通常論文]
     
    A montmorillonite membrane with a thickness of 0.5 mm was prepared, and reverse osmosis experiments, were conducted for various inorganic and organic solutes of different sizes under an operating pressure of 3 MPa. The mean pore size and pore size distribution were determined by a log-normal probability plot between the solute separation and the Einstein-Stokes radius of the solute molecules for which reverse osmosis and ultrafiltration performance was investigated. The relationships between the pore size and the pore size distribution and the structure of montmorillonite are discussed. A comparison is also made between the pore size and the thickness of the electrical double layer.
  • Journal of Membrane Science 107 (1/2) 87 -92 1995年 [査読無し][通常論文]
  • Effects of macropores and electric charges on solute transport in soils
    農業工学研究所報告 第33号pp.1-69 1994年 [査読無し][通常論文]
  • Effects of macropores and electric charges on solute transport in soils
    (33) 1 -69 1994年 [査読無し][通常論文]
  • T NAKAGAWA, M ISHIGURO JOURNAL OF ENVIRONMENTAL QUALITY 23 (1) 208 -210 1994年01月 [査読無し][通常論文]
     
    Recently, acid precipitation problems have become serious in many regions of the world. The adverse effects of acid precipitation on soils are also feared. In this study, our objective was to determine the effect of inflowing solution pH on saturated hydraulic conductivity (K). The K values were determined at a constant hydraulic gradient columns packed at a dry balk density of 0.51 Mg m(-3). Influent solutions with the same electrolyte level (1 moI(c) m(-3)) were prepared at pH 3, 4.2, 5.7, 10, and 11, respectively. The K values decreased when the influent solutions were pH 3 and 11. The K values at 38 pore volumes of an effluent decreased to approximate to 0.067 of the initial K-0 at pH 3, and approximate to 0.25 of the initial K-0, at pH 11, respectively. Measurements of dispersion by optical absorbance method were also carried out. Clay dispersed at low pH (pH < 4.5) and high pH (pH > 10). The structure of the soil columns when K was reduced were visually inspected after K measurements. Those aggregates at the upper portion (approximate to 1 mm thickness) of the soil column seemed to be destroyed by dispersion of clay. It became clear that acidic or aikaline solution decreased permeability of the allophanic andisol. Such a reduction of permeability may significantly change the water balance in a field.
  • M ISHIGURO, KC SONG, K YUITA SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 56 (6) 1789 -1793 1992年11月 [査読無し][通常論文]
     
    Because the density of variable charge in a soil is influenced by the solution concentration and the pH, exchanging ion transport in the soil is also affected by them. In this study, the effect of variable charge on exchanging ion transport in an allophanic Andisol (Typic Hydrudand) that has negative and positive variable charges was investigated experimentally. Miscible-displacement experiments were conducted under saturated and unsaturated (-1.96 kPa of soil water pressure) conditions. The cases studied here involved ion exchange under a constant total concentration condition and a constant pH condition. A SrBr2 solution was applied to the soil column, which was initially saturated with a CaCl2 solution. The miscible-displacement experiments were carried out at different total concentration (0.001-0.1 mol(c) L-1) and pH (4.2-7.65). Bromine flowed out slowly at lower pH due to the large anion-exchange capacity (AEC). Strontium discharged slowly at higher pH due to the large cation-exchange capacity (CEC). The counterion penetrated slowly at a lower concentration because the amount of the counterion contained in a unit of solution volume was small. Observed breakthrough curves (BTCs) agreed with those expected from measured exchange isotherms. Based on the relationship between the Sr BTC and the Br BTC, no notable differences were observed between the BTCs under saturated conditions and those under unsaturated conditions. The influence of the solution concentration and the pH cannot be ignored when considering ion transport in an allophanic Andisol.
  • KC SONG, M ISHIGURO SOIL SCIENCE AND PLANT NUTRITION 38 (3) 477 -484 1992年09月 [査読無し][通常論文]
     
    We performed breakthrough experiments for an Allophanic Andisol under saturated and unsaturated conditions. The experiments were carried out under several different pH conditions. The AEC and the CEC of an Allophanic Andisol under different pH conditions were measured using the batch method of Wada and Okamura. The values were compared with those obtained in the breakthrough experiments. No significant difference was observed between them. The results indicated that there was an adequate exchange of counterions during the movement through the soil in the breakthrough experiments. The breakthrough curves showed the effects of the solution pH on the ion transport in soil. The pH affected the charge density and the charge density significantly influenced the movement of counterions in the soil. Another effect of the pH on ion transport was observed in the breakthrough curves as a function of "apparent pore volume." The pH also affected the hydraulic conductivity. The hydraulic conductivity at a low pH was very low due to the dispersion of the soil particles. The breakthrough curves under saturated conditions were compared with those under unsaturated conditions (- 1.96 kPa of soil water potential). No significant difference was observed between them.
  • Ion transport in soil with ion exchange reaction : Effect of distribution ratio
    Soil Science Society of America Journal 56 (6) 1738 -1743 1992年 [査読無し][通常論文]
  • Effects of shrinkage and swelling of soils on water management in paddy fields
    Proceedings of the International Workshop held at the Asian Institute of Technology 258 -267 1992年 [査読無し][通常論文]
  • M ISHIGURO SOIL SCIENCE 153 (1) 42 -47 1992年01月 [査読無し][通常論文]
     
    Cation exchange processes in hard pans of paddy fields were studied. Ca2+ and Sr2+ transport in them were simulated assuming the equilibrium between the concentrations of Ca2+ and Sr2+ in solution and the amounts adsorbed in soil during the cation exchange process. Cation transport in four kinds of hard pans having vertical tubular pores made by rice roots was explained by the coaxial cylindrical model. Cation transport in the hard pan of the sand was approximated by the one-dimensional convective dispersive equation including ion exchange. The simulation was performed using the measured values and parameters which have been given in the calculation of nonsorbed Br-. The results explained the measured breakthrough curves well. The amounts of adsorbed Ca2+ obtained by the batch experiments (well disturbed soils) and the breakthrough experiments (undisturbed soils) were compared. The results showed that cations could exchange well even in the compact hard pans, provided that the cations are supplied sufficiently and sufficient time is expended for the experiment.
  • Munehide Ishiguro Soil Science 152 (6) 432 -439 1991年 [査読無し][通常論文]
     
    We simulated non-sorbed Br−transport through hard pans of paddy fields by using a coaxial cylindrical model. In the model, only one parameter was used. The model was adapted to 4 kinds of hard pans. All calculated values were close to the measured values. The results proved that vertical tubular pores made by rice roots whose radii were less than 1 mm had as significant an effect on solute transport as transmission pores in the hard pans. When the mean velocity in the pores was faster, solute discharged rapidly through them before diffusing well into the soil matrix. On the other hand, when the mean velocity in the pores was slower, solute discharged slowly while sufficiently diffusing into the soil matrix. © 1991 Williams & Wilkins.
  • 粘土の電荷と農業・環境
    日本化学会コロイドおよび界面化学部会ニュースレター 15 (4) 23 -24 1990年 [査読無し][通常論文]
  • Solute transport in hard pans in paddy fields
    Transactions, 14th International Congress of Soil Science 1 293 -294 1990年 [査読無し][通常論文]
  • Characteristics of solute transport under unsaturated conditions (共著)
    Transactions, American Geophysical Union 71 (28) 1990年 [査読無し][通常論文]
  • 宮古島西海岸における潮汐・潮流の解析
    農業土木試験場報告 第26号pp.71-102 1987年 [査読無し][通常論文]
  • Solute transport in a hard pan with fine cracks in paddy field
    Transactions of 13th International Congress of Soil Science 1 87 -88 1986年 [査読無し][通常論文]
  • 虹貝川における水質解析(Ⅰ):水収支と物質収支による水質解析法
    農業土木試験場技報 第164号(WM-5) pp.37-58 1985年 [査読無し][通常論文]
  • 与那覇湾の潮流解析 (共著)
    農業土木試験場技報 (164) 59 -80 1985年 [査読無し][通常論文]
  • 農地開発に伴う河川流量の変化の予測と対策(Ⅰ):水理学的流出解析法による検討
    農業土木試験場技報 第160号(WM-4)pp.79-98 1984年 [査読無し][通常論文]
  • 三方湖の塩分解析(I)、水収支の解析 (共著)
    農業土木試験場技報 (160) 99 -119 1984年 [査読無し][通常論文]

受賞

  • 2018年08月 日本土壌肥料学会 日本土壌肥料学会賞
     土壌中における水・溶質移動と界面電気現象に関する研究 
    受賞者: 石黒 宗秀

共同研究・競争的資金等の研究課題

  • 土壌中における界面活性剤の挙動
    研究期間 : 2001年
  • 土壌の透水性変化
  • 土壌・水・イオンの相互作用
  • 土壌中の溶質移動
  • Surfactant-Soil Interactions
  • Changes of permeability of soils
  • Soil-water-ion interactions
  • Solute Transport in Soils

教育活動情報

主要な担当授業

  • 環境と人間
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 全学
  • 地域環境学
    開講年度 : 2018年
    課程区分 : 修士課程
    開講学部 : 農学院
    キーワード : 水土資源利用・保全、大気の循環、エネルギー収支、物質循環、農業生態系 Use and conservation of water and soil resources, atmospheric cycling, energy balance at earth surface, material cycling, agro ecosystems
  • 地域環境学演習
    開講年度 : 2018年
    課程区分 : 修士課程
    開講学部 : 農学院
    キーワード : 水土資源利用・保全、大気の循環、エネルギー収支、物質循環、農業生態系 Use and conservation of water and soil resources, atmospheric cycling, energy balance at earth surface, material cycling, agro ecosystems
  • 土質力学
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 農学部
    キーワード : 応力,圧密,沈下,土圧,斜面安定
  • 土壌物理学
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 農学部
    キーワード : 粘土,水,電気拡散二重層,土壌水ポテンシャル,透水係数,拡散
  • 農地環境工学
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 農学部
    キーワード : 圃場整備,潅漑排水,農地造成,農地保全,水田管理,農地工学,土壌構造
  • 物理学概論
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 農学部
    キーワード : 力学,エネルギー,運動,波動,熱力学,電磁気学,光,量子力学,原子核,放射線
  • 環境と人間(1単位)
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : 土壌、水、大気、自然エネルギー、地域、物質循環、Information and communication technology (ICT) と農業生産、作物生産技術、持続的食料生産、農産物の収穫後技術と品質

大学運営

委員歴

  • 2019年04月 - 現在   土壌物理学会   評議員
  • 2018年05月 - 2020年05月   農業農村工学会   理事,北海道支部長
  • 2017年04月 - 2019年03月   土壌物理学会   会長
  • 2011年04月 - 2015年03月   土壌物理学会   評議員
  • 2011年10月 - 2014年09月   Journal of Soil Science and Plant Nutrition   Editorial Board
  • 2011年10月 - 2014年09月   日本土壌肥料学会   土壌物理部門長
  • 2012年06月 - 2014年06月   農業農村工学会   理事・北海道支部長
  • 2007年04月 - 2009年03月   土壌物理学会   編集委員
  • 2003年 - 2007年   土壌物理学会   評議員
  • 2003年 - 2005年   土壌物理学会   編集委員
  • 1989年 - 1994年   農業土木学会   海外水田工学特別研究委員会幹事   農業土木学会
  • 1988年 - 1990年   土壌物理学会   編集幹事   土壌物理学会

社会貢献活動

  • ふしぎな土の世界
    期間 : 2015年05月23日
    役割 : 出演
    主催者・発行元 : 北海道新聞社・北海道大学
    イベント・番組・新聞雑誌名 : あぐり大学第一回講座
     北海道大学農学部および北海道新聞小学生新聞まなぶん 「ふしぎな土の世界」と題して,土とは何だろうか,私たちと土はどのような関係があるのだろうか,良い土とはなんだろうか,そのために農家の人たちはどんなことをするのだろうかなどについて話をし,小学生新聞に序文を記した。


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