Researcher basic information

• 博士(理学), 北海道大学

• https://researchmap.jp/235?lang=en

• https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201501027319885880
• https://kaken.nii.ac.jp/d/r/20271629.ja.html

• 201501027319885880

• 河川水質
• 無機イオン
• 北方森林流域
• 水溶性無機有機複合体
• 水溶性有機無機複合体
• 水溶性有機物
• 物質循環
• 融雪期
• 寒冷積雪地
• 森林流域
• 水循環
• 渓流水
• 炭素循環
• 季節凍土
• 環境変化
• 永久凍土南限
• 北方林
• 北海道北部
• 野外操作実験
• 流出量
• 炭素
• 中国
• 森林機能
• 永久凍土
• 森林変化
• 溶存アルミニウム
• 水分動態
• CO_2フラックス
• 科学組成
• 広域研究

• Life Science, Forest science

• Bachelor's degree program, School of Agriculture
• Master's degree program, Graduate School of Environmental Science
• Doctoral (PhD) degree program, Graduate School of Environmental Science

Research activity information

• Effects of clear-cutting on the dynamics of nitrate deposited onto a forested watershed
  Tsunogai Urumu; Komatsu Daisuke D; Suzuki Atsushi; Nakagawa Fumiko; Fukuzawa Karibu; Shibata Hideaki; Takagi Kentaro; Nomura Mutsumi, Abstracts of Annual Meeting of the Geochemical Society of Japan, 59, 0, 2012
  本研究では、森林およびササを伐採した演習林から流出する硝酸イオンの三酸素同位体組成の時間変化を分析することで、流出水中の硝酸イオンの起源を明らかにして、森林の大気から沈着する窒素除去能力に対して伐採が与える影響を定量化した。その結果、特にササ伐採後は沈着窒素の流出フラックスが伐採前の約20倍に増加しており、大気から沈着する窒素の除去能力がほぼ完全に失われたことが明らかになった, GEOCHEMICAL SOCIETY OF JAPAN, Japanese
• Yearly trend of snowmelt runoff in a forestry treatment watershed
  Nomura Mutumi; Takagi Kentaro; Hojo Hajime; Takahashi Hiroyuki; Sakai Rei; Ito Kinya; Miyoshi Chikako, Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2011, 0, 184, 184, 2011
  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, English
• The effect of artificial forest disturbance for the discharge of a small catchment in northern Hokkaido
  Satoh Fuyuki; Hayakashi Shintaro; Kamiura Tatsuya; Hirano Yuya; Suzuki Kohei; Nomura Mutsumi; Shibata Hideaki; Sasa Kaichiro, The Japanese Forest Society Congress, 122, 0, 747, 747, 2011
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Effects of high nitrogen load on the photosynthesis and growth of the hybrid larch (Larix gmelinii×L. kaempferi) seedlings : The responses for the nitrogen treatment during two growing seasons
  RYU Koharu; WATANABE Makoto; TAKAGI Kentaro; NOMURA Mutsumi; KOIKE Takayoshi, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 58, 17, 20, 19 Feb. 2010
  The Boreal Forest Society, Japanese
• Effects of high nitrogen load on the photosynthesis and growth of the hybrid larch (Larix gmelinii×L. kaempferi) seedlings
  RYU Koharu; WATANABE Makoto; TAKAGI Kentaro; SHIBATA Hideaki; NOMURA Mutsumi; KOIKE Takayoshi, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 57, 49, 51, 21 Feb. 2009
  The Boreal Forest Society, Japanese
• Effect of harvesting on the photosynthetic responses of regenerated Kalopanax seedlings in a mature Sakhalin fir plantation
  YAZAWA Shungo; WATANABE Yoko; KOBAYASHI Makoto; KITAOKA Satoshi; NOMURA Mutsumi; TAKAHASHI Yoshiyuki; HOJO Gen; KAMIURA Tatsuya; SAITO Hideyuki; KOIKE Takayoshi, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 57, 53, 55, 21 Feb. 2009
  The Boreal Forest Society, Japanese
• Cost reduction of logging slash collecting by whole tree skidding method and effects on material flow
  NAGAOKA Aya; AKIBAYASHI Yukio; NOMURA Mutsumi; TAKAGI Kentaro; KAMIURA Tatsuya; HOJO Hajime; TAKAHASHI Hiroyuki; KOZUKA Chikara; SAKAI Rei; SASA Kaichiro, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 57, 199, 201, 21 Feb. 2009
  The Boreal Forest Society, Japanese
• Effect of high nitrogen load on the growth of ectomycorrhizal hybrid larch F1 planted on serpentine soil
  Ryu Koharu; Watanabe Makoto; Tamai Yutaka; Shibata Hideaki; Takagi Kentarou; Nomura Mutsumi; Koike Takayoshi, The Japanese Forest Society Congress, 120, 0, 600, 600, 2009
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Forestation in windy cold area in northern Hokkaido
  Nomura Mutumi; Takagi Kentaro; Hojyo Hajime; Takahashi Hiroyuki; Kozuka Chikara; Sakai Rei; Ito Kinya; Miyoshi Cikako, JSSI & JSSE Joint Conference, 2009, 0, 29, 29, 2009
  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, Japanese
• Effects of prescribed burning on the available nitrogen and phosphorous in soil of a bamboo dominated forest in the Hokkaido
  Kobayashi MAKOTO; KIM Yong-Suk; NOMURA Mutsumi; SHIBATA Hideaki; SATOMURA Takami; KAMIURA Tatsuya; HOJYO Gen; TAKAHASHI Hiroyuki; KOTSUKA Chikara; SAKAI Rei; TAKAGI Kentaro; SATOH Fuyuki; SASA Kaichiro; KOIKE Takayshi, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 56, 29, 31, 21 Feb. 2008
  The Boreal Forest Society, Japanese
• Water Budget in A Forestry Operated Watershed in Snowy Area
  Nomura Mutumi; Takagi Kentaro; Hojyo Hajime; Tahahashi Hiroyuki; Kozuka Chikara; Sakai Rei; Ito Kinya; Sasa Kaichiro, Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2008, 0, 82, 82, 2008
  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, English
• Effect of forest cutting for the stream chemistry of boreal mixed forest watershed:Does forest cutting accelerate the influence of acid snow on stream chemstry?
  Satoh Fuyuki; Hayakashi Shintaro; Takeda Tetsuji; Aoyagi Yoko; Ishikawa Naoko; Ishida Hayao; Nomura Mutsumi; Shibata Hideaki; Sasa Kaichiro, The Japanese Forest Society Congress, 119, 0, 169, 169, 2008
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Costs to collect logging slash at a selection cutting practice in the natural forest
  OIKAWA Masatoshi; AKIBAYASHI Yukio; NOMURA Mutsumi; TAKAGI Kentaro; KAMIURA Tatsuya; HOJYO Hajime; TAKAHASHI Hiroyuki; KOZUKA Chikara; SAKAI Rei; SASA Kaichiro, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 55, 98, 100, 21 Feb. 2007
  The Boreal Forest Society, Japanese
• Comparative observation of snowmelt runoff among small hilly watersheds
  NOMURA Mutumi; SATOH Fuyuki; SHIBATA Hideaki; HAYAKASHI Shintaro; SASA Kaichiro, Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2007, 0, 119, 119, 2007
  THE JAPANESE SOCIETY OF SNOW AND ICE, Japanese
• Cost-cutting to collect Logging Slash by entirely skidding method:Insutance of Selection Cutting Practice in national forest
  Sasa Kaichiro; Oikawa Masatoshi; Akibayashi Yukio; Nomura Mutsumi; Takagi Kentaro; Kamiura Tatsuya; Hojyo Hajime; Takahashi Hiroyuki; Kozuka Chikara; Sakai Rei, The Japanese Forest Society Congress, 118, 0, 216, 216, 2007
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Tree height and biomass evaluation at conifer-hardwood mixed forest in northern Hokkaido using airborne Laser survey
  TAKAHASHI Hiroyuki; TAKAGI Kentaro; NOMURA Mutsumi; HOJYO Hajime; KAMIURA Tatsuya; KOZUKA Chikara; SAKAI Rei; YONE Yasumichi; FUKUSHI Ryota; OGUMA Hiroyuki; FUJINUMA Yasumi; MAEBAYASHI Mamoru, 日本森林学会北海道支部論文集, 54, 93, 95, 24 Feb. 2006
  The Boreal Forest Society, Japanese
• 積雪寒冷地帯の山地源頭部森林小流域における融雪期の渓流水質:人為的森林攪乱の渓流水質に与える影響（_I_）
  佐藤 冬樹; 上浦 達哉; 早柏 慎太郎; 竹田 哲二; 石川 尚子; 野村 睦; 小澤 恵; 柴田 英昭; 笹 賀一郎, 日本森林学会大会発表データベース, 117, 0, 716, 716, 2006
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Change in snowmelt runoff at a forestry operated basin
  Nomura Mutumi; Takagi Kentaro; Takahashi Hiroyuki; Hojo Hajime; Sasa Kaichiro; Fujinuma Yasumi, Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2006, 0, 221, 221, 2006
  THE JAPANESE SOCIETY OF SNOW AND ICE, Japanese
• The behavior of metallic components in the forest
  HIRAJIMA Kunito; HAMAYA Motohiro; TOBISAWA Takuya; FUKAZAWA Tatsuya; TACHIBANA Harukuni; FUKUZAWA Karibu; SHIBATA Hideaki; NOMURA Mutsu; TAKAGI Kentarou; FUJINUMA Yasumi, Doboku Gakkai Ronbunshuu G, 13, 317, 322, 2005
  To understand the behavior of metals in forest area, we collected atmospheric aerosol, fallout and river water samples in every two weeks from June of 2002 to December of 2004 in the Teshio Experimental Forest (45°03'N, 142°07'E a. s. 1.66m). And all samples were analyzed by ICP-MS for metals, such as Fe, Al, Ti, Ba, Sr, Mn, Zn, Pb.<BR>Atmospheric concentrations of Fe, A1, Pb, Mn and Sr in both aerosols and fallouts increased in winter. However, the atmospheric Zn and Ba in aerosols increased during winter, but in the fallouts.<BR>In the event of rainfall, Ba, Sr and Mn concentrations in river water, those were mainly plant origin, were decreasing with increasing in the flow. On the contrary, Al and Ti. concentrations in the water, those were mainly soil origin, were increasing in the same period. As for Fe, also soil origin was decreasing in the period. In thaw season, Fe, Ba and Sr concentrations decreased with increasing in flow, however, Al and Zn concentrations increased. In comparison the annual output from the river water with the annual input from the fallouts. As for Al, Fe, Sr and Ba, the output exceeded the input. As for Zn and Pb, the input exceeded the output. As for Mn and Ti, the input and the output were nearly equal., Japan Society of Civil Engineers
• 「長期観察林」データと航空機レーザー計測を用いた森林計測
  高橋 廣行; 高木 健太郎; 野村 睦; 菅田 定雄; 北條 元; 浪花 彰彦; 小塚 力; 米 康充; 小熊 宏之; 藤沼 康実, 日本森林学会大会発表データベース, 116, 0, 277, 277, 2005
  THE JAPANESE FORESTRY SOCIETY, Japanese
• Deforestation effect on the water balance in a cool-temperate forested watershed, Hokkaido
  Takagi Kentaro; Nomura Mutsumi; Shibata Hideaki; Fukuzawa Karibu; Sasa Kaichiro; Akibayashi Yukio; Satoh Fuyuki; Fujinuma Yasumi, The Japanese Forest Society Congress, 116, 0, 717, 717, 2005
  THE JAPANESE FORESTRY SOCIETY
• Snowmelt runoff observations at a forestry operated basin (2)
  NOMURA Muutumi; Takahashi Hiroyuki; SUGATA Sadao; SASA Kaichiro; SHIBATA Hideaki; TAKAGI Kentaro; HOJO Hajime; ASHIYA Daitaro; NANIWA Akihiko; KOZUKA Chikara; FUJINUMA Yasumi, Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2005, 0, 105, 105, 2005
  THE JAPANESE SOCIETY OF SNOW AND ICE
• Growth characteristics and seasonal change of photosynthetic capacity in canopy of hybrid larch (Larix gmelinii x L. kaempfreri)
  KAYAMA Masazumi; NOMURA Mutsumi; SASA Kaichiro; KOIKE Takayoshi; KITAOKA Satoshi; WANG Wengie; CHOI Dongsu; JI Donghum; SUGATA Sadao; HOJYO Hajime; NANIWA Akihiko; TAKAGI Kentaro, Transactions of the Meeting in Hokkaido Branch of the Japanese Forest Society, 53, 0, 49, 51, 2005
  Boreal Forest Society, Japanese
• Sowmelt runoff observations at a forestry operated basin
  NOMURA Mutumi; Takahashi Hiroyuki; Sugata Sadao; Sasa Kaiciro; Shibata Hideaki; Takagi Kentaro; HOJO Hajime; ASHIYA Daitaro; NANIWA Akihiko; Kozuka Chikara; Fujinuma Yasumi, Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2004, 0, 58, 58, 2004
  THE JAPANESE SOCIETY OF SNOW AND ICE
• Elemental Budgets of Forest Watershed at Cold Snowy Region
  SHIBATA Hideaki; ICHIKAWA Kazu; NOMURA Mutsumi; SATO Fuyuki; SASA Kaichiro; ISII Yoshiyuki; KOBAYASHI Daiji, Journal of Japanese Association of Hydrological Sciences, 32, 2, 49, 56, 31 May 2002
  

  Elemental budgets of forest watershed during snow melting periods from end of March to end of June were determined in a cold snowy region in northern Hokkaido.

  The total stream water discharge was 712 mm with a discharge ratio (discharge/precipitation) of 0.78. During the early stage of snow melting Na⁺, Cl^-, Ca²⁺, Mg²⁺ and SO₄^2- concentrations in stream water increase remarkably, most likely due to the elements accumulated within the snowpack and surface soil, and decrease with the decrease of stream discharge. On the contrary, bicarbonate concentration decreases, at the beginning of snow melting, due to the dilution effect of the melting water, and gradually increases with the decrease of stream discharge. A Cl/Na ratio, similar to that of seawater suggests a marine origin of Na and Cl. The results from the analysis of element budgets, during the whole snow-melting season, show that: i) inputs of Na⁺ and Cl^- are similar and mostly released from the watershed; ii) inputs of Ca²⁺, Mg²⁺ and HCO₃^- are dramatically smaller than their outputs, indicating that these ions are discharged from the watershed and that the dissociation of the bicarbonate is the major proton source during the melting period. The reaction of mineral weathering and/or ionic exchange of Ca²⁺ and Mg²⁺ are major proton sinks with a net leaching of 16 mol_c ha^-1 d^-1, as acidification rate of the forest watershed. These findings clearly indicate that the elemental dynamic of forest watershed in cold snowy regions is quite different between the early and late stage of the snow melting process. Moreover, the net fluxes of elemental outputs are closely related to the bicarbonate dynamics within the forest watershed.

  , 日本水文科学会, Japanese
• Comparison of snowmelt runoff in Tertiary with in serpentine
  NOMURA Mutumi; YASAKI Keiko; SASA Kaichiro; SATOH Fuyuki; ASHIYA Daitaro, Research bulletins of the College Experiment Forests, Hokkaido University, 58, 2, 1, 9, 31 Aug. 2001
  北海道北部の近接する第三紀層と蛇紋岩の山地源流域において1997年と1999年に融雪流出の観測を行なった。その結果、蛇紋岩流域は流量変動が大きい特徴を有すること、それに対して第三紀層流域は流量変動が小さいことがわかった。蛇紋岩流域の極大流量は第三紀層のそれの約2倍だった。1日もしくは2日単位の水収支解析を行なったところ両流域とも流出率は100%以上だった。経験的な手法で直接流出を分離し、その流出率を調べたところ、第三紀層流域は30%未満、蛇紋岩流域では40%以上で60%を超える場合もあった。河川水温の平均値は第三紀層流域が約5℃、蛇紋岩流域が約2℃で3℃ほどの差があった。これらの値は、第三紀層流域では100cmよりも相当深い深度、蛇紋岩流域では50cm深の地温に等しい。このことから、第三紀層流域では土壌の深部に、蛇紋岩流域では浅層部に流出経路があると推測した。, Hokkaido University, Japanese
• Meteorological characteristics of northern Hokkaido University Forests during 1995-1999
  Takagi Kentarou; Sasa Kaichirou; Satou Fuyuki; Nomura Mutsumi; Komiya Keiji; Takahashi Hiroyuki; Houjou Hajime; Kaneko Kiyoshi; Ichikawa Hajime; Nakajima Junko; Ashiya Daitarou; Ishida Nobuo; Okuda Atsushi; Naniwa Aiko; Okamoto Tomoko, Research bulletins of the College Experiment Forests, Hokkaido University, 58, 1, 29, 36, 2001
  Hokkaido University, Japanese
• Stream water chemistry of university forests over Japan.
  Toda H; Sasa K; Sato F; Shibata H; Nomura M; Ichikawa K; Fujito E; Takanishi T; Seiwa K; Tsukahara H; Iida T; Taniguchi N; Nakata M; Kuwabara S; Uchida T; Haruta Y; Inoue M; Yagi H; Tsukagoshi T; Kuraji K; Futada M; Ono H; Suzuki M; Imaizumi Y; Yamaguchi N; Takenaka C; Yurugi Y; Kawanabe S; Ando M; Nakanishi A; Nishimura K; Yamasaki M; Nagayama Y; Doi N; Katagiri S; Kofuji R; Shinmura Y; Inoue S; Ezaki T; Kohno S; Hujihisa M; Iwamatu I; Imayasu K; Nakamura S; Tsukamoto J; Nogami K; Enoki T, Journal of the Japanese Forestry Society, 82, 3, 308, 312, 16 Aug. 2000
  Extensive research on forest stream water chemistry gives important information in understanding the effects of environmental changes in forest ecosystems. The chemical properties of stream water from 45 forested watersheds in university forests over Japan were investigated in June, 1998. The average pH was 7.1 (maximum 8.1,minimum 6.1). The average electric conductivity (EC) was 64 (maximum 178,minimum 19) μS/cm. The EC of stream water in Okinawa and Sado Island sites tended to be high because the effects of sea salt. Except for the island sites, EC had a positive correlation with pH, summation of cation and alkalinity (mostly HCO_3^-). This suggests that the water showed a high EC value and a high pH value caused by the consumption of proton (H^+) in streams where carbonate weathering brings a high cation concentration. The NO_3^- concentration in the Kanto mountainous region sites was high compared with the concentration of other sites. In Gunma sites, the relationships between NO_3^- and Ca^<2+> concentration had a close positive correlation. It was considered that exchangeable Ca^<2+> in the surface soil was discharged due to the increase of H^+ produced by nitrification., Japanese Forestry Society, Japanese
• A preliminary survey of the effect of forest management practice on changes in water flow in a forest ecosystem
  Nakajima Junko; Nomura Mutsumi, Technical report for boreal forest conservation of the Hokkaido University Forests, 17, 41, 42, Oct. 1999
  Hokkaido University, Japanese
• Ionic elution from the acidic snowpack during spring thaw period in the northen part of Hokkaido
  SATOH Fuyuki; NOMURA Mutumi; MASUMOTO Hiroshi; ASHIYA Daitaro; Sasa Kaichiro, Research bulletins of the College Experiment Forests, Hokkaido University, 56, 2, 1, 10, Sep. 1999
  Hokkaido University, English
• Observation and simulation of snowcover in a mountain region
  NOMURA Mutumi; SATOH Fuyuki; ASHIYA Daitaro; MASUMOTO Hiroshi, Research bulletins of the College Experiment Forests, Hokkaido University, 56, 2, 11, 19, Sep. 1999
  Hokkaido University, Japanese
• 天塩地方演習林における量水観測の現状
  芦屋 大太郎; 野村 睦, 試験年報, 15, 2, 3, 1997
  北海道大学, Japanese
• 融雪水の化学組成に対する森林の影響
  佐藤 冬樹; 芦谷 大太郎; 小林 信; 桝本 浩志; 野村 睦, 試験年報, 15, 46, 48, 1997
  北海道大学, Japanese
• 融雪流出過程の観測
  野村 睦, 試験年報, 13, 26, 27, 05 Sep. 1994
  北海道大学, Japanese
• Snowmelt and meltwater runoff in an alpine basin 2 Runoff characteristics of meltwater
  Ishii Yoshiyuki; Nomura Mutsumi; Kobayashi Daiji, Low temperature science. Ser. A, Physical sciences, 52, 39, 50, Mar. 1994
  Runoff characteristics of meltwater from a perennial snowpatch in the Daisetsu mountains of central Hokkaido were observed during the summer snowmelt season in 1990. Lag-time of the peak streamflow to the peak surface snowmelt was about 7 hours, and its occurrence time did not change remarkably when the snow depth decreased from 7m to 2m. The apparent speed of infiltration in the snowpatch was 58cm/h, which was estimated from the aquifer level change. The lag-time of 50% runoff was small and the streamwater temperature was about 0℃ during the active snowmelt in a day. These characteristics were considerably different from those in a forested basin. The difference could be attributed mainly to the shallow pathways of meltwater in the thinner soil mantle in the alpine basin., Hokkaido University, Japanese
• Diurnal variations in electric conductivity of stream water in a headwater basin during the snowmelt period of 1993
  Ishii Yoshiyuki; Kobayashi Daiji; Nomura Mutsumi, Low temperature science. Ser. A, Physical sciences. Data report, 52, 25, 38, Mar. 1994
  The diurnal variations of stream water level and electric conductivity were oberved at the Moshiri experimental basin (1.28km2) during the snowmelt period of 1993. Observations were made at 4 sites, namely at middle- and down-stream locations in a main stream and in two tributaries. The phase lags of electric conductivity in the tributaries occurred 4 hours or more later than those at the main stream. Such a phase lag was not observed in the variations of stream water level., Hokkaido University, Japanese
• Comparison of Stream Temperatures during Stormflow from Snowmelt and Rainfall and Hydrograph Separation
  KOBAYASHI Daiji; ISHII Yoshiyuki; NOMURA Mutsumi, JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES, 7, 6, 512, 519, 1994
  The temperatures of streams under thick snow cover in the volcanic basin of Neogene period in northern Hokkaido Island, Japan, were found to rise to 3° or 4°C during the snowmelt runoff. Because these were considerably higher than the temperature of snowmelt (0°C), and the streams were perfectly insulated from heat sources from above by snow cover, it was reasoned that soil heat was furnishing most of the heat in runoff. The stream temperatures during the rainstorm runoff in August and September decreased gradually after peak runoff, attaining a nearly constant temperature 9∼11°C on the contrary to that during snowmelt runoff. These stream temperatures attained in the falling limb of each stormflow are comparable to those of soil at about 1.8m below land surface in each period in this basin. The hydrographs in each stormflow were separated assuming the stream tempratures depending on the mixing of direct discharge of meltwater or rain with indirect discharge of subsurface water having 1.8 m soil temperatures. The separated subsurface flow occupied 80∼90% of the total flow in each flood. The hydrograhs were also separated by electric conductance following the stream temperature method., THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES
• Regional observations of snow cover in Hokkaido, February 1992
  Ishii Yoshiyuki; Akitaya Eizi; Nomura Mutsumi, Low temperature science. Ser. A, Physical sciences. Data report, 51, 9, 22, Mar. 1993
  Regional observations of snow cover were carried out in Hokkaido from 18th to 27th February 1992, and a "snow cover diagram" was made. The water equivalent of snow was found to be proportional to the Ram hardness of snow. Chemical analyses of snow samples showed variations in Cl- concentrations with distances from the sea shore, and differences in the anion composition between mountaintops and flatlands. The pH value of snow samples collected near a trunk road was found to be closely related to Ca2+ concentrations due to contamination from asphalt dust., Hokkaido University, Japanese
• Spatial variability of summer precipitation in the Moshiri Basin
  Ishii Yoshiyuki; Kobayashi Daiji; Nomura Mutsumi, Low temperature science. Ser. A, Physical sciences. Data report, 51, 49, 58, Mar. 1993
  Spatial variabilities of summer precipitation were observed at the Moshiri experimental basin (1.3km2) in Hokkaido. Daily amounts of rainfall measured at six sites in the basin were found to be nearly equal, and showed no tendency to vary with topography and elevation. Hourly hyetographs showed very similar patterns, except for periods of heavy and short durational showers., Hokkaido University, Japanese
• Time lag process in snowmelt runoff : propagation of meltwater in snow pack
  Nomura Mutumi; Ishii Yoshiyuki; Kodama Yuji; Kobayashi Daiji, Low temperature science. Ser. A, Physical sciences, 49, 1, 14, Mar. 1991
  Hokkaido University, Japanese
• Hydrological and meteorological environment of the perennial "Hisago Snowpatch" in Daisetsu Mountains (1989)
  Yamada Tomomi; Kawamura Toshiyuki; Nishimura Koichi; Kodama Yuji; Nomura Mutsumi, Low temperature science. Ser. A, Physical sciences. Data report, 48, 23, 63, Mar. 1990
  Hokkaido University, Japanese

• 森林圏科学特論Ⅰ, 2024年, 修士課程, 環境科学院
• 一般教育演習(ﾌﾚｯｼｭﾏﾝｾﾐﾅｰ), 2024年, 学士課程, 全学教育
• 森林空間機能学, 2024年, 学士課程, 農学部
• 森林空間機能学演習, 2024年, 学士課程, 農学部