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Papers

  1. Osaka, K., Kunimatsu, T., Hida, Y., Komai, Y., Katsuyama, M., Ohte, N. (2023). Hydrological and biogeochemical controls of the seasonality of particulate and dissolved nitrogen exports during rainfall events from a forested watershed in monsoon Asia, Japan. Water Resources Research, 59, e2023WR034756. https://doi.org/10.1029/2023WR034756.
  2. Nagasawa, K., Fukushima, K., Setoguchi, H., Katsuyama, M., Sakaguchi, S.(2023) Extreme low pH, not Al3+ is a key abiotic stressor for the formation of extremophyte (Carex angustisquama, Cyperaceae), Plant Biology, 25, 551-562. DOI:10.1111/plb.13514.
  3. Katsuyama, M., Ohte, N., Kosugi, Y., Tani, M. (2021) The Kiryu Experimental Watershed: 50‐years of rainfall‐runoff data for a forest catchment in central Japan. Hydrol. Process., 35: e14104. DOI: 10.1002/hyp.14104.
  4. Kanazawa, A., Masanoka, N., Kosugi, K., Katsuyama, M., Nakaya, H. (2021) Estimation of Recharge Area of Spring Water in Headwater Catchments. J. Japan Soc. Hydrol. and Water Resour., 34, 100-113. (in Japanese with English summary).
  5. Tsuruta, K., Yamamoto, H., Kosugi, Y., Makita, N., Katsuyama, M., Kosugi, K., Tani, M. (2020) Slope position and water use by trees in a headwater catchment dominated by Japanese cypress: Implications for catchment-scale transpiration estimates. Ecohydrology, 13, e2245. DOI: 10.1002/eco.2245.
  6. Iwasaki, K., Katsuyama, M., Tani, M. (2020) Factors affecting dominant peak-flow runoff-generation mechanisms among five neighbouring granitic headwater catchments. Hydrological Processes., 34, 1154-1166. DOI: 10.1002/hyp.13656.
  7. Tsuruta, K.,Kosugi, Y., Katsuyama, M., Kosugi, K., Suzuki, M., Tani, M. (2020) Long-term effects of evapotranspiration on the flow duration curve in a coniferous plantation forest over 40 years. Hydrological Research Letters 14, 1-8. DOI: 10.3178/hrl.14.1.
  8. Ohte N, Katsuyama, M. (2019) Comparison of nitrate export patterns in forested catchments in Japan and the Northeastern United States: A meta-analysis. Hydrological Processes. 33, 3184-3194. DOI: 10.1002/hyp.13612.
  9. Tsuruta, K., Yamamoto, H., Katsuyama, M., Kosugi, Y., Okumura, M., Matsuo, N.(2019) Effects of cryogenic vacuum distillation on the stable isotope ratios of soil water. Hydrological Research Letters, 13, 1-6. DOI: 10.3178/hrl.13.1.
  10. Tanaka-Oda, A., Endo, I., Ohte, N., Eer, D., Yamanaka, N., Hirobe, M., Nachinshonhor, G. U., Koyama, A., Jambal, S., Katsuyama, M., Nakamura, T., Matsuo, N., Jamsran, U., Okuro, T., Yoshikawa, K.(2018) A water acquisition strategy may regulate the biomass and distribution of winter forage species in cold Asian rangeland. Ecosphere, 9, e02511. DOI: 10.1002/ecs2.2511.
  11. Oda, T., Green, M. B., Urakawa, R., Scanlon, T. M., Sebestyen, S. D., McGuire K. J., Katsuyama, M., Fukuzawam K., Adams, M. B., Ohte, N.(2018) Stream runoff and nitrate recovery times after forest disturbance in the USA and Japan, Water Resources Research, 54, 6042-6054. DOI: 10.1029/2017WR021986.
  12. Katsuyama, M., Itoh, M., Ohte, N., Tani, M. (2018) Hydro-biogeochemical processes of a riparian wetland and their effects on surface water quality in a forested catchment. J. Japan Soc. Hydrol. and Water Resour., 31, 178-189. (in Japanese with English summary).
  13. Thuan, N. C., Koba, K., Yano, M., Makabe, A., Kinh, C. T., Terada, A., Toyoda, S., Yoshida, N., Tanaka, Y., Katsuyama, M., Yoh, M. (2018) N2O production by denitrification in an urban river: evidence from isotopes, functional genes, and dissolved organic matter. Limnology, 19, 115-126. DOI: 10.1007/s10201-017-0524-0.
  14. Marryanna, L., Kosugi, Y., Takanashi, S., Noguchi, S., Itoh, M., Katsuyama, M., Matsuo, N., Siti-Aisah, S. (2017) Evapotranspiration and water source of a tropical rainforest in peninsular Malaysia. Hydrol. Process., 31, 4338-4353. DOI: 10.1002/hyp.11360.
  15. Marryanna, L., Kosugi, Y., Itoh, M., Noguchi, S., Takanashi, S., Katsuyama, M., Tani, M., Siti-Aisah, S.(2017) Temporal variation in the stable isotopes in precipitation related to the rainfall pattern in a tropical rainforest in peninsular Malaysia, Journal of Tropical Forest Science, 29: 349-362. DOI: 10.26525/jtfs2017.29.3.349362.
  16. Iwasaki, K., Katsuyama, M. and Tani, M.(2016) Effects of deep percolation on dissolved inorganic nitrogen exports from forested headwater catchments. J. For. Res., pp. 57-66, doi: 10.1007/s10310-015-0517-y.
  17. Katsuyama, M., Yoshioka, T. and Konohira, E.(2015) Spatial distribution of oxygen-18 and deuterium in stream waters across the Japanese archipelago. Hydrol. Earth Syst. Sci., 19, pp. 1577-1588, doi:10.5194/hess-19-1577-2015.
  18. Iwasaki, K., Katsuyama, M. and Tani, M. (2015) Contributions of bedrock groundwater to the upscaling of storm-runoff generation processes in weathered granitic headwater catchments. Hydrol. Process., 29, pp. 1535-1548, doi:10.1002/hyp.10279.
  19. Katsuyama, M.(2014) Remarks of Water Isotope Measurement of Small Samples with Analyzer Based on Wavelength-Scanned Cavity Ring-Down Spectroscopy (WS-CRDS). J. Japan Soc. Hydrol. and Water Resour.,27, pp. 304-310.(in Japanese wih English summary)
  20. Tokuchi, N., Ohte N., Osaka, K. and Katsuyama, M. (2013) Separate estimation of N export into baseline N leakage without disturbance and N loss due to insect defoliation in a pine forest watershed in central Japan. Environmental Monitoring and Assessment, 185, pp. 855-863. doi:10.1007/s10661-012-2596-y.
  21. Tani, M., Fujimoto, M., Katsuyama, M., Kojima, N., Hosoda, I., Kosugi, K., Kosugi, Y., Nakamura, S. (2012) Predicting the dependencies of rainfall-runoff responses on human forest disturbances with soil loss based on the runoff mechanisms in granite and sedimentary rock mountains, Hydrological Processes, 26, pp. 809-826, doi:10.1002/hyp.8295.
  22. Matsumoto, K., Kosugi, Y., Katsuyama, M., Tani, M., Ohkubo, S. and Takanashi, S. (2011) Estimation of bedrock infiltration on a weathered granitic mountain covered by Japanese Cypress forest using water-budget and eddy covariance methods. International Journal of Erosion Control Engineering, 4, pp. 10-20, doi:10.13101/ijece.4.10.
  23. Katsuyama, M., Tani, M. and Nishimoto, S. (2010) Connection between streamwater mean residence time and bedrock groundwater recharge/discharge dynamics in weathered granite catchments. Hydrological Processes, 24, pp. 2287-2299, doi:10.1002/hyp.7741.
  24. Osaka, K., Ohte, N., Koba, K,, Yoshimizu, C., Katsuyama, M., Tani, M., Tayasu, I. and Nagata, T. (2010) Hydrological influences on spatiotemporal variations of d15N and d18O of nitrate in a forested headwater catchment in central Japan: Denitrification plays a critical role in groundwater. Journal of Geophysical Research, 115, G02021, doi:10.1029/2009JG000977.
  25. Katsuyama, M., Shibata, H., Yoshioka, T., Yoshida, T., Ogawa, A. and Ohte, N. (2009) Applications of a hydro-biogeochemical model and long-term simulations of the effects of logging in forested watersheds. Sustainability Science, 4, pp. 179-188, doi:10.1007/s11625-009-0079-z.
  26. Katsuyama, M., Kabeya, N. and Ohte, N. (2009) Elucidation of the relationship between geographic and time sources of stream water using a tracer approach in a headwater catchment, Water Resources Research, 45, W06414, doi:10.1029/2008WR007458.
  27. Koba, K., Osaka, K., Tobari, Y., Toyoda, S.,Ohte, N., Katsuyama, M., Suzuki, N, Itoh, M., Yamagishi, H., Kawasaki, M., Kim, S. J., Yoshida, N. and Nakajima, T. (2009) Biogeochemistry of nitrous oxide in groundwater in a forested ecosystem elucidated by nitrous oxide isotopomer measurements, Geochimica et Cosmochimica Acta, 73, pp. 3115-3133, doi:10.1016/j.gca.2009.03.022.
  28. Katsuyama, M., Fukushima, K. and Tokuchi, N. (2008) Comparison of rainfall runoff characteristics in forested catchments underlain by granitic and Sedimentary rock with various forest age, Hydrological Research Letters, 2, pp. 14-17.
  29. Kawasaki, M., Ohte, N., Kabeya, N. and Katsuyama, M. (2008) Hydrological control of dissolved organic carbon dynamics in a forested headwater catchment, Kiryu Experimental Watershed, Japan. Hydrological Processes, 22, pp. 429-442, doi:10.1002/hyp.6615.
  30. Yoshioka, T., Mostofa, K. M. G., Konohira, E., Tanoue, E., Hayakawa, K., Takahashi, M., Ueda, S., Katsuyama, M., Khodzher, T., Bashenkhaeva, N., Korovyakova, I., Sorokovikova, L., Gorbunova, L. (2007)Distribution and characteristics of molecular size fractions of freshwater-dissolved organic matter in watershed environments: its implication to degradation, Limnology, 8, pp. 29-44, doi:10.1007/s10201-006-0194-9.
  31. Itoh, M., Ohte, N., Koba, K, Katsuyama, M., Hayamizu, K. and Tani, M.(2007) Hydrologic effects on methane dynamics in riparian wetlands in a temperate forest catchment. Journal of Geophysical Research, 112, G01019, doi:10.1029/2006JG000240.
  32. Kosugi, Y. and Katsuyama, M. (2007) Evapotranspiration over a Japanese cypress forest.Ⅱ. Comparison of the eddy covariance and water budget methods. Journal of Hydrology, 334, pp. 305-311, doi:10.1016/j.jhydrol.2006.05.025.
  33. Kabeya, N., Katsuyama, M., Kawasaki, M., Ohte, N. and Sugimoto, A. (2007) Estimation of mean residence times of subsurface waters using seasonal variation in deuterium excess in a small headwater catchment in Japan. Hydrological Processes, 21, pp. 308-322, doi:10.1002/hyp.6231.
  34. Osaka, K., Ohte, N., Koba, K., Katsuyama, M. and Nakajima, T. (2006) Hydrologic controls on nitrous oxide production and consumption in a forested headwater catchment in central Japan. Journal of Geophysical Research, 111, G01013, doi:10.1029/2005JG000026.
  35. Kosugi, K., Katsura, S., Katsuyama, M. and Mizuyama, T. (2006) Water flow processes in weathered granitic bedrock and their effects on runoff generation in a small headwater catchment. Water Resources Research, 42, W02414, doi:10.1029/2005WR004275.
  36. Katsuyama, M., Ohte, N. and Kabeya, N.(2005) Effects of bedrock permeability on hillslope and riparian groundwater dynamics in a weathered granite catchment. Water Resources Research, 41, W01010, doi:10.1029/2004WR003275.
  37. Kawasaki, M., Ohte, N. and Katsuyama, M. (2005) Biogeochemical and hydrological controls on carbon export from a forested catchment in central Japan. Ecological Research, 20, pp. 347-358, doi:10.1007/s11284-005-0050-0.
  38. Katsuyama, M., Ohte, N. and Kosugi, K. (2004) Hydrological control of the streamwater NO3- concentrations in a weathered granitic headwater catchment, J. Jpn, For. Soc., 86, pp. 27-36. (in Japanese with English summary).
  39. Tokuchi, N., Ohte, N., Hobara, S., Kim, S. J. and Katsuyama, M. (2004) Changes in biogeochemical cycling following forest defoliation by pine wilt disease in Kiryu experimental catchment in Japan. Hydrological Processes, 18, pp. 2727-2736, doi:10.1002/hyp.5578.
  40. Kosugi, K. and Katsuyama, M. (2004) Controlled-suction period lysimeter for measuring vertical water flux and convective chemical fluxes, Soil Science Society of America Journal. 68, pp. 371-382, doi:10.2136/sssaj2004.3710.
  41. Kim, S. J., Ohte, N., Kawasaki, M., Katsuyama, M., Tokuchi, N. and Hobara, S. (2003) Interactive responses of dissolved sulfate and nitrate to disturbance associated with Pine wilt disease in a temperate forest. Soil Science and Plant Nutrition, 49, pp. 539-550.
  42. Ohte, N., Tokuchi, N., Katsuyama, M., Hobara, S., Asano, Y. and Koba, K. (2003) Episodic increases in nitrate concentrations in streamwater due to the partial dieback of a pine forest in Japan: Runoff generation processes control seasonality. Hydrological Processes, 17, pp. 237-249., doi:10.1002/hyp.1121
  43. Katsuyama, M. and Ohte, N. (2002) Determining the sources of stormflow from the fluorescence properties of dissolved organic carbon in a forested headwater catchment. Journal of Hydrology, 268, pp. 192-202, doi:10.1016/S0022-1694(02)00175-0.
  44. Katsuyama, M., Ohte, N. and Kobashi, S. (2001) A three-component end-member analysis of streamwater hydrochemistry in a small Japanese forested headwater catchment. Hydrological Processes, 15, pp.249-260, doi:10.1002/hyp.155.
  45. Hobara, S., Tokuchi, N., Ohte, N., Koba, K., Katsuyama, M., Kim, S. J., Nakanishi, A. (2001) Mechanism of nitrate loss from a forested catchment following a small-scale, natural disturbance. Canadian Journal of Forest Research, 31, pp. 1326-1335, doi:10.1139/cjfr-31-8-1326.
  46. Katsuyama, M.,Ohte, N., Uchida, T., Asano, Y. and Kimoto, A. (2000) Effects of differences of hydrological processes on the streamwater chemistry. J. Japan. Soc. Hydrol. & Water Resour., 13, pp. 227-239(in Japanese with English summery)

Bulletin and Proceedings

  1. Masaoka, N., Kosugi, K., Katsuyama, M., Mizuyama, M., Miyata, S., Tsutsumi, D.(2014) Effects of bedrock groundwater and geological structure on hydrological processes in mountainous watersheds, INTERPRAEVENT 2014 Conference Proceedings, P-25.
  2. Katsuyama, M., Fukushima, K. and Tokuchi, N. (2009) Effects of various rainfall-runoff characteristics on streamwater stable isotope variations in forested headwaters, Eds. by M. Taniguchi, Y. Fukushima, W.C. Burnett, M. Haigh and Y. Umezawa, From Headwaters to the Ocean: Hydrological Change and Watershed Management, Taylor & Francis. pp. 51-55.
  3. Fukushima, K., Tokuchi, N., Tateno, R. and Katsuyama, M. (2009) Water yield and nitrogen loss during regrowth of Japanese cedar forests after clearcutting, Eds. by M. Taniguchi, Y. Fukushima, W.C. Burnett, M. Haigh and Y. Umezawa, From Headwaters to the Ocean: Hydrological Change and Watershed Management, Taylor & Francis, pp. 97-103.
  4. Tokuchi, N., Fukushima, K. and Katsuyama, M. (2009) Factors controlling stream water chemistry in ten small forested watersheds with plantation forests of various proportions and ages in central Japan , Eds. by M. Taniguchi, Y. Fukushima, W.C. Burnett, M. Haigh and Y. Umezawa, From Headwaters to the Ocean: Hydrological Change and Watershed Management, Taylor & Francis, pp. 75-81.
  5. Kabeya, N., Katsuyama, M., Kawasaki, M., Ohte, N. and Sugimoto, A. (2005) Estimation of mean residence time in subsurface waters in a small headwater catchment, Proceedings of Headwater '05, the sixth international conference on headwater control, Bergen, Norway, 20-23 June 2005, 105.
  6. Katsuyama, M. and Ohte, N. (2004) Intercomparison of the streamwater hydrochemistry in weatheredgranite catchments -Mixing model approach-, Edited by Sidle, R. C., Tani, M., Abdul Rahim, N. and Tewodros Ayele, T., Forest and Water in Warm, Humid Asia, Proceeding of a IUFRO Forest Hydrology Working Group, 10-12 July 2004, Kota Kinabalu, Malaysia, Disaster Prevention Research Institute, Uji, Japan, 274p. ISBN 4-9902142-0-X
  7. Kosugi, K. and Katsuyama, M.(2002) Measurements of convective chemical fluxes in vadose zone by suction controlled lysimeter. 17th WCSS, 14-21-August 2002, Thailand. pp. 965-1-965-9.
  8. Kosugi, K. and Katsuyama, M. (2001) Measurements of groundwater recharge rate and unsaturated convective chemical fluxes by suction controlled lysimeter. Impact of Human Activity on Groundwater Dynamics (Proceeding of a symposium held during the Sixth IAHS Scientific Assembly at Maastricht, The Netherlands, July 2001), IAHS Publ., no. 269, pp.19-24.
  9. Katsuyama, M. and Ohte, N. (2001) Effects of the variations of groundwater levels on the hydrochemical processes in a headwater catchment, Japan. Freiburger Schriften zur Hydrologie (Proceeding of International conference "Runoff Generation and Implications for River Basin Modeling", 9-12. October 2000, Freiburg, Germany). pp.326-332
  10. Ohte, N, Tokuchi, N., Katsuyama, M., Hobara, S. and Asano, Y. (2001) Episodic rising in nitrate concentration of streamwater by partial dieback of pine forest in Japan: Runoff generation processes as a controlling factor of the seasonality. Freiburger Schriften zur Hydrologie (Proceeding of International conference "Runoff Generation and Implications for River Basin Modeling", 9-12. October 2000, Freiburg, Germany), pp. 68-74.
  11. Katsuyama, M., Ohte, N. and Kobashi, S. (1998) The influence of a rainfall event on the chemical changes of forest runoff water, Bull. Kyoto Univ. For., 69, pp. 26-37 (in Japanese with English summary).
  12. Asano, Y., Ohte, N., Katsuyama, M. and Kobashi, S. (1998) Impacts of Forest Succession on the Hydrogeochemistry of Headwaters, Japan. Edited by M. J. Haigh et al., "Headwaters: Water resources and soil conservation", Proceeding of Headwater '98, the Fourth International Conference on Headwater Control, Merano, Italy, April, pp.85-95.

Reviews

  1. Uchida, T., Asano, Y., Hiraoka, M., Yokoo, Y., Gomi, T. Mizugaki, S., Niwa, S., Katsuyama, M. Effects of spatial scales on runoff/sediment transport in mountain catchments (4): proposed directions for improving predictivity. J. Japan Soc. Hydrol. and Water Resour., 34, 192-204 (in Japanese with English summary).
  2. Yokoo, Y., Niwa, S., Uchida, T. Asano, Y., Katsuyama, M., Gomi, T., Mizugaki, S., Hiraoka, M. (2018) Spatial scale for runoff and sediment transport in watersheds (3): Review for the treatments of numerical models, J. Japan Soc. Hydrol. and Water Resour., 31, 245-261. (in Japanese with English summary).
  3. Asano, Y., Uchida, T., Katsuyama, M., Hiraoka, M., Mizugaki, S., Gomi, T., Niwa, S., Yokoo, Y. (2018) Effects of spatial scales on runoff / sediment transport in mountain catchments (2) - Results from intensively studied catchments, J. Japan Soc. Hydrol. and Water Resour., 31, 232-244. (in Japanese with English summary).
  4. Asano, Y., Uchida, T., Gomi, T., Mizugaki, S., Hiraoka, M., Katsuyama, M., Niwa, S., Yokoo, Y. (2018) Effects of spatial scales on runoff / sediment transport in mountain catchments (1) - A review of field observations on catchment area and properties, J. Japan Soc. Hydrol. and Water Resour., 31, 219-231. (in Japanese with English summary).

Preprint

  1. Shibata, H., Takeuchi, S., Ding, M., Shiraiwa, T., Katsuyama, M., Nakaoka, M., Nakada, S., Nagao, S. (2022) Tidal effect on nitrate and dissolved organic carbon concentrations in river water in the Bekanbeushi River watershed in eastern Hokkaido, northern Japan, 26 October 2022, PREPRINT (Version 1) available at Research Square.

Presentations at International Academic Meetings / Conferences

  1. Katsuyama, M., Ohte, N., Osaka, K.: Hydrological control on long-term streamwater nitrate 'depression' in temperate forest catchments, Japan., AGU Fall Meeting 2023, Moscone Convention Center, San Francisco, USA, 2023/12/11.
  2. Katsuyama, M., Shirai, R., Fukushima, K., Onishi, Y., Koba, K.: Why do the stream nitrate concentrations differ between neighboring catchments? -Consideration of denitrification processes-, ACID RAIN 2020, TOKI MESSE, Niigata Convention Center, 2023/4/20.
  3. Katsuyama, M., Yamauchi, R.: Inter-regional comparison of the effects of long-term trends in water balance on groundwater isotope composition in the Japanese archipelago, AGU Fall Meeting 2022, 2022.12.13, McCormick Place, Chicago, USA.
  4. Katsuyama, M., Shirai, R., Fukushima, K., Onishi, Y., Koba, K.: Effects of denitrification process on the difference in streamwater nitrate concentration between neighboring subcatchments in a temperate forest, Japan., AGU Fall Meeting, Online/New Orleans, 2021.12.16.
  5. Katsuyama, M., Tsuruta, K., Muranaka, M., Kosugi, Y.: Stable isotope signature along hydrological processes in a temperate forest, Japan, AGU Fall Meeting, Online, 2020.12.10.
  6. Katsuyama, M., Haga, H., Fukushima, K., Oda, T., Fujimoto, M., Osaka, K. Nagano, R., Egusa, T.: Comparison of hydrological control in streamwater residence times across headwater catchments, AGU Fall Meeting, San Francisco, 2019.12.11.
  7. Katsuyama, M., Ohte, N., Kosugi, Y.: The Kiryu Experimental Watershed: 50-years forest dynamics and hydro-biogeochemical studies in Central Japan, AGU Fall Meeting, San Francisco, 2019.12.9.
  8. Katsuyama, M.: Long‐term increasing trend of line‐conditioned excess in groundwater, JpGU Meeting 2019, Makuhari Messe, Chiba, Japan, 2019.5.28.
  9. Katsuyama, M., Osaka, K., Haga, H.: High-frequency monitoring of nitrate in ground- and streamwater reveals variant C-Q relationship in a forest catchment, AGU Fall Meeting, Washington D.C., 2018.12.10.
  10. Katsuyama, M., Haga, H., Fukushima, K., Oda, T., Fujimoto, M., Osaka, K., Nagano, R.: Comparison of controlling factors of streamwater mean residence time across headwater catchments using water stable isotope, JpGU Meeting 2018, Makuhari Messe, Chiba, Japan, 2018.5.24.
  11. Katsuyama, M., Levia, D. and Tani, M.: A Worldwide Groundwater Isoscape: history of cycle stored in the bottles, AGU Fall Meeting, New Orleans, 2017.12.12.
  12. Katsuyama, M., Ohte, N. and Osaka, K.: Long-term dynamics and future perspective of streamwater chemistry in forested headwater catchments, JpGU-AGU Joint Meeting 2017, Makuhari Messe, 2017.5.20.
  13. Katsuyama, M., Tani, M. and Tsuruta, K.: Hydro- biogeochemical responses to environmental change at a granite catchment in Japan estimated from 43-years records, AGU Fall Meeting, San Francisco, 2016.12.14.
  14. Katsuyama, M., Tanaka, Y. and Tani, M.: Variations of fluorescent DOC in temperate forest catchments, Goldschmidt 2016, Yokohama, 2016.6.29.
  15. Katsuyama, M., Takaki, K., Masaoka, N., Haga, H., Shin, K., Nakano, T. and Tani, M.: Identification and comparison of bedrock groundwater contribution in headwater streams using Strontium isotope, AGU Fall Meeting, San Francisco, 2015.12.17.
  16. Katsuyama, M., Iwasaki, K., Nagano, R., Takaki, K. and Tanaka, Y.: Hydrological control of perpetual effects of forest disturbance on streamwater chemistry in a forested catchment, 4th International Conference Forests & Water in a Changing Environment, Kelowna, Canada, 2015.7.7.
  17. Katsuyama, M., Iwasaki, K., Nagano, R., Takaki, K. and Tanaka, Y.: Difference of Ecosystem and Hydrological control on Long-term water quality between adjacent subcatchments in a forested catchment in central Japan, AGU Fall Meeting, San Francisco, 2014.12.15.
  18. Katsuyama, M. and Tani, M.:Isoscapes of bottled water a as tool for global groundwater resources monitoring, MinWat2014, Karlovy Vary, Czech Republic, 2014/9/11.
  19. Katsuyama, M., Kosugi, K. and Tani, M.: Mean residence time and hydrochemistry of bedrock groundwater aquifer in a Granite mountain, Japan Geoscience Union Meeting 2014, Pacifico YOKOHAMA, 2014/4/29.
  20. Katsuyama, M., Kosugi, K. and Tani, M.: Long-term observations of bedrock groundwater dynamics and contributions to stream in a Granite catchment - Approach with mean residence time and hydrochemistry, AGU Fall Meeting, San Francisco, 2013.12.10.
  21. Katsuyama, M. and Tani, M.: Potential utility of bottled waters of Japan and of the world for groundwater isoscapes, US-Japan joint seminar on responses of catchment hydrology and forest biogeochemistry to environmental changes, University of Hawaii, USA, 2013.3.6
  22. Katsuyama, M.: Evaluations on influences of forest disturbances on streamwater chemistry based on the long-term hydrobiogeochemical observation, US-Japan joint seminar on responses of catchment hydrology and forest biogeochemistry to environmental changes, University of Hawaii, USA, 2013.3.6
  23. Katsuyama, M. and Tani, M.: Potential utility of bottled waters of Japan and of the world for groundwater isoscapes, AGU Fall Meeting, San Francisco, 2012.12.5.
  24. Katsuyama, M. and Fukushima, K.: Mechanisms of long-term effects of forest disturbance on streamwater nitrate concentration in headwaters - Application of residence time concept-, 3rd International Conference on Forests and Water in a Changing Environment, Fukuoka, Japan, 2012.9.19.
  25. Katsuyama, M., Yoshioka, T., Konohira, E., Tayasu, I., Tani, M.: Spatial distribution of oxygen-18 and deuterium in stream- and groundwaters across the Japanese archipelago, AGU Fall Meeting, San Francisco, 2011.12.8.
  26. Katsuyama, M.: Application of residence time concept for the biogeochemical responses of streamwater in a forested headwater catchment, ILTER 2011 annual meetings, Hokkaido University, Sapporo, Japan, 2011.9.5.
  27. Katsuyama, M., Yoshioka, T. and Konohira, E.: Distribution of oxygen-18 and deuterium in streamwaters across Japan, 2011 International Union of Geodesy and Geophysics (IUGG) General Assembly, Melbourne Convention Centre, Melbourne, Australia, 2011.7.4.
  28. Katsuyama, M., Nishimoto, S., Saitoh, Y., Nakano, T. and Tani, M.: Application of Strontium isotope to hydrological study of groundwater dynamics in a weathered granite catchment, AGU Fall Meeting, San Francisco, 2010.12.13.
  29. Katsuyama, M. and Fukushima, K.: Predicting Carbon and Water balances, and Inorganic nitrogen leaching after forest harvesting, Western Pacific Geophysics Meeting 2010, Taipei International Convention Center, Taipei, Taiwan, 2010.6.22.
  30. Katsuyama, M., Hayamizu, K., Itoh, M., Ohte, N. and Tani, M.: Hydro-biogeochemical functions of a riparian wetland in a forested catchment, AGU Fall Meeting, San Francisco, 2009.12.
  31. Katsuyama, M., Fukushima, K., Tokuchi, N, Ohte, N and Tani, M.: Geological influences on hydrological and isotopic characteristics in forested headwaters, AGU Fall Meeting, San Francisco, 2008.12.
  32. Katsuyama, M., Fukushima, K. and Tokuchi, N.: Effects of various rainfall-runoff characteristics on streamwater stable isotope variations in forested headwaters, HydroChange 2008, Kyoto, 2008.10
  33. Katsuyama, M., Nishimoto, S., Ohte, N. and Tani, M.: Relationship between rainfall-runoff processes and mean residence times of stream and groundwater in weathered granite catchments, WPGM2008, Cairns, Australia, 2008.7.
  34. Katsuyama, M., Ohte, N. and Kabeya, N.: Disagreement of end-members and geographic sources of streamwater: riparian control mechanism, AGU Fall Meeting, San Francisco, 2006.12.
  35. Katsuyama, M., Fukushima, K. and Tokuchi, N.: Influence of Geology on Water Yielding Function in Forest Catchments, RIHN (Research Institute for Humanity & Nature) 1st International Symposium "Water and Better Human Life in the Future",Kyoto International Conference Hall Annex Hall, 2006.11.
  36. Katsuyama, M., Ohte, N., Kosugi, K., Katsura, S. and Uenoyama, M.: Hydrochemical and hydrological dynamics of bedrock groundwaters in a weathered granite headwater, AGU Fall Meeting, San Francisco, USA, 2005.12.
  37. Katsuyama, M., Ohte, N., Kosugi, K. and Tani, M.: Hydrochemical and hydrological dynamics of bedrock groundwaters in a weathered granite headwater - A process study in Kiryu Experimental Watershed, Japan, SLope InterComparison Experiment (SLICE) Workshop, Oregon, USA, 2005.9.
  38. Katsuyama, M., Ohte, N., and Hayamizu, K.: Streamwater hydrochemistry in headwaters: mixing, inter catchment groundwater transfer, and instream processes, San Francisco, USA, 2004.12.
  39. Katsuyama, M. and Ohte, N.: Intercomparison of the streamwater hydrochemistry in weathered granite catchments -Mixing model approach-, Forest and Water in Warm, Humid Asia, Workshop of the International Union of Forest Research Organizations (IUFRO) Forest Hydrology Working Group, Kota Kinabalu, Malaysia, 2004.7.
  40. Katsuyama, M., Itoh, M., Ohte, N., Itoh, H. and Tani, M.: Spatial variability of hydrochemical dynamics in weathered granite catchments, IUGG2003, Sapporo, Japan, 2003.7.
  41. Katsuyama, M., Ohte, N. and Kosugi, K.: Role of bedrock flow to Hillslope-Riparian linkage in forested headwater catchment, AGU Fall Meeting, San Francisco,, USA, 2002.12.
  42. Katsuyama, M. and Ohte, N.: Effects of the variations of groundwater levels on the hydrochemical processes in a headwater catchment, Japan. International conference "Runoff Generation and Implications for River Basin Modeling", Freiburg, Germany, 2000.10.

Co-Author

  1. Koba, K., Katsuyama, M., Fukushima, K, Sumi, K., Yano, M.: Nitrogen dynamics elucidated by nitrate isotopes in a small, forested catchment in Japan, ACID RAIN 2020, TOKI MESSE, Niigata Convention Center, 2023/4/21.
  2. Ohte, N., Zhu, J., Osaka, K., Katsuyama, M.: Long-term and catchment-level effects in nitrogen dynamics of the pine wilt disease, ACID RAIN 2020, TOKI MESSE, Niigata Convention Center, 2023/4/20.
  3. Tsuruta, K., Kosugi, Y., Katsuyama, M.: Long-term trend in catchment water balance of a Japanese cypress forest, AGU Fall Meeting 2022, 2022.12.17, McCormick Place, Chicago, USA.
  4. Ohte, N., Katsuyama, M., Osaka, K.: Kiryu Experimental Watershed: the temperate forest catchment under Asian monsoon climate, Frontiers in Hydrology, Online / San Juan, Puerto Rico, 2022.6.23.
  5. Asano, Y., Uchida, T., Gomi, T., Mizugaki, S., Hiraoka, M., Katsuyama, M., Niwa, S., Yokoo, Y.: Effect of spatial scales on runoff / sediment transport in mountain catchments. JpGU - AGU Joint Meeting 2020: Virtual. 2020.7.14.
  6. Uchida, T., Asano, Y., Mizugaki, S., Yokoo, Y., Hiraoka, M., Gomi, T., Niwa, S., Katsuyama, M.: Towards improving predictivity of runoff and sediment transport for mountainous catchments through measurement of spatial patterns of hydrological behaviors. JpGU - AGU Joint Meeting 2020: Virtual. 2020.7.14.
  7. Ohte, N., Katsuyama, M.: Implications of the difference in seasonal variations of nitrate discharge from the temperate forest ecosystems between monsoon and non-monsoon zones, AGU Fall Meeting, San Francisco, 2019.12.12.
  8. Oda, T. Band, L. E., Green, M. B., Scanlon, T. M., Sebestyen, S. D., McGuire, K. J., Adams, M. B., Katsuyama, M., Shimizu, T., Urakawa, R., Fukuzawa, K., Ohte, N.: Streamflow response and recovery after forest disturbance in different climates, AGU Fall Meeting, San Francisco, 2019.12.12.
  9. Adams, M. B., Oda, T., Green, M., Urakawa, R., Scanlon, T. M., Sebestyen, S. D., McGuire, K. J., Katsuyama, M., Fukuzawa, K., Ohte, N.: Stream Runoff and Nitrate Recovery Times: Evaluating Ecosystem Response to Forest Disturbance in the USA and Japan. IUFRO World Congress 2019 "Forest Research and Cooperation for Sustainable Development", Curitiba, Brazil; 29 September - 5 October 2019, 2019.10.1.
  10. Imaizumi, Y., Tsujimura, M., Yamamoto, C., Sugiyama, A., Ogawa, M., Sakakibara, K., Utsumi, M., Kato, K., Nagaosa, K., Mizugaki, S., Katsuyama, M., Yamada, T., Yano, S., Sasakura, N., Gusyev, M., Morgenstern, U., Stewart, M. K.: Relationship between spring water residence time and microbial information in headwater catchments underlain by different lithology, Japan and New Zealand, AGU Fall Meeting, Washington D.C., 2018.12.10.
  11. Tsujimura, M., Sakakibara, K., Katsuyama, M., Mizugaki, S.,Gusyev, M., Yamamoto, C., Sugiyama, A., Ogawa, M., Kato, K., Yamada, T., Yano, S., Sasakura, N., Morgenstern, U., Stewart, M. K.: Integrated study on spatiotemporal variation of residence time in spring and groundwater at headwater catchments, JpGU Meeting 2018, Makuhari Messe, Chiba, Japan, 2018.5.24.
  12. Imaizumi, Y., Tsujimura, M., Yamamoto, C., Sugiyama, A., Ogawa, M., Sakakibara, K., Kato, K., Mizugaki, S., Katsuyama, M., Yamada, T., Yano, S., Sasakura, N., Gusyev, M., Morgentem, U., Stewart, M. K.: Spatial distribution of residence time and total number of prokaryotes in spring water in headwater catchments underlain by different lithology, JpGU Meeting 2018, Makuhari Messe, Chiba, Japan, 2018.5.24.
  13. Yamada, T., Katsuyama, M., Imaizumi, Y., Tsujimura, M., Sakakibara, K.: Experimental study on groundwater and spring water dating method using SF6 tracer during baseflow condition in headwater catchment, JpGU Meeting 2018, Makuhari Messe, Chiba, Japan, 2018.5.24.
  14. Matsuura, T., Tebakari, T., Katsuyama, M.: Observation of hydrogen and oxygen isotopes in the Kurobe River basin, JpGU Meeting 2018, Makuhari Messe, Chiba, Japan, 2018.5.24.
  15. Oda, T,, Green, M. B., Urakawa, R., Scanlon, T. M., Sebestyen, S. D., McGuire, K. J., Katsuyama, M. Fukuzawa, K., Adams, M. B., and Ohte, N.: Stream runoff and nitrate recovery times after forest disturbance in the USA and Japan, AGU Fall Meeting, New Orleans, 2017.12.14.
  16. Ohte, N., Osaka, K., Katsuyama, M., Oda, T. and Mizugaki, S.: Effects of extreme events on nitrogen export from forested ecosystems: a review, JpGU-AGU Joint Meeting 2017, Makuhari Messe, 2017.5.25.
  17. Ohte, N., Osaka, K., Katsuyama, M., Oda, T., Fukushima, K. and Mizugaki, S.: Effects of extreme events on nitrogen export from forested headwater catchments, AGU Chapman Conference on Extreme Climate Event Impacts on Aquatic Biogeochemical Cycles and Fluxes, San Juan Marriott Resort & Stellaris Casino, Puerto Rico, USA, 2017/1/23.
  18. Haga, H., Katsuyama, M., Osaka, K.: Critical Rainfall and Groundwater Level Regulating Runoff Generation in a Small Forested Catchment, Western Japan, AGU Fall Meeting, San Francisco, 2014.12.15.
  19. Masaoka, N., Kosugi, K., Katsuyama, M., Mizuyama,T., Miyata,S., Tsutsumi, D.: Effects of bedrock groundwater and geological structure on hydrological processes in mountainous watersheds, INTERPRAEVENT International Symposium 2014, Nara Prefectural New Public Hall, Nara, Japan, 2014.11.27.
  20. Kume, T., Oda, T., Inoue, Y., Yoshifuji, N., Katsuyama, M., Kumagai, T. and Ichie, T. : How emergent trees in a bornean tropical rainforest can mitigate impacts of drought?, 6th International Symposium on Physiological Processes in Roots of Woody Plants, Nagoya Univ., Japan, 2014.9.9.
  21. Oda, T., Urakawa, R., Green, M., Ohte, N., Endo, I., Scanlon, T. M., Sebestyen, D. D., McGuire, K. J., Katsuyama, M. and Fukuzawa, K.: Hydrological and nitrate recovery times after forest disturbance in US and Japan, The 6th EAFES International Congress, Hailou, China, 2014.4.10.
  22. Ohte, N., Tokuchi, N., Katsuyama, M., Osaka, K., Yoneda, S. and Ochiai, N.: Strong nitrogen retention against the pine-stands dieback by pine-wilt disease in a temperate conifer-deciduous forest in central Japan: Budget and mechanisms, AGU Fall Meeting, San Francisco, 2013.12.10.
  23. Fukushima, K., Tateno, R.,Katsuyama, M. and Tokuchi, N.: Changes in plant-soil feedback regulate ecosystem nitrogen retention during stand development of Japanese cedar plantation after clear-cutting, AGU Fall Meeting, San Francisco, 2013.12.10.
  24. Oda, T., Green, M., Ohte, N., Urakawa, R., Endo, I., Scanlon, T. M., Sebestyen, S. D., McGuire, K. J., Katsuyama, M., Fukuzawa, K., Tague, C., Hiraoka, M., Fukushima, K. and Giambelluca, T. W.: Comparison of methods for determining the hydrologic recovery time after forest disturbance, AGU Fall Meeting, San Francisco, 2013.12.10.
  25. Ohte, N., Tokuchi, N., Katsuyama, M. and Osaka, K.: Whole story of episodic high nitrate discharge due to the partial dieback of a pine forest in Japan: runoff generation processes control seasonality, US-Japan joint seminar on responses of catchment hydrology and forest biogeochemistry to environmental changes, University of Hawaii, USA, 2013/3/4
  26. Itoh, M., Ohte, N., Koba, K., Sugimoto, A., Katsuyama, M. and Tani, M.: Hydrobiogeochemical influences on water chemistry and methane production in a temperate forested wetland in central Japan, US-Japan joint seminar on responses of catchment hydrology and forest biogeochemistry to environmental changes, University of Hawaii, USA, 2013/3/5
  27. Iwasaki, K., Katsuyama, M., Tani, M.:Effects of bedrock groundwater on hydrological and biogeochemical processes within riparian zones of two adjacent granite catchment, AGU Fall Meeting, San Francisco, 2011.12.9.
  28. Ohte, N., Takahashi, Y., Itoh, M., Katsuyama, M., Fujimoto, M., Matsuo, N., Tani, M.: Analysis on DOC transformation in a forested catchment using stable carbon isotope values, AGU Fall Meeting, San Francisco, 2009.12.
  29. Osaka, K., Ohte, N., Koba, K., Yoshimizu, C., Katsuyama, M., Tani, M., Tayasu, I., Nagata, T.: Hydrological influences on spatiotemporal variations of δ15N, δ18O of nitrate in a forested headwater catchment in central Japan: Denitrification plays a critical role in groundwater bodies, AGU Fall Meeting, San Francisco, 2009.12.
  30. Fukushima, K., Tokuchi, N., Katsuyama, M. and Tateno, R.: Factors regulating nitrogen retention in forested watershed during the development of Japanese cedar stand, 6th International Symposium on Ecosystem Behavior BIOGEOMON 2009, The University of Helsinki, Finland, 2009.6.30.
  31. Fukushima, K., Tokuchi, N., Tateno, R. and Katsuyama, M.: Water yield and nitrogen loss during regrowth of Japanese cedar forests after clearcutting, HydroChange 2008, Kyoto, 2008.10.
  32. Tokuchi, N., Fukushima, K. and Katsuyama, M.: Factors controlling stream water chemistry in ten small forested watersheds with plantation forests of various proportions and ages in central Japan, HydroChange 2008, Kyoto, 2008.10.
  33. Suzuki, N., Koba, K., Itoh, M., Osaka, K., Ohte, N., Tobari, Y., Katsuyama, M., Yamada, K., Toyoda, S., Nagata, T. and Yoshida, N.: A measurement of methane flux and its isotope ratio to determine methane dynamics in wetland, ISI 2006, Third International Symposium on Isotopomers, University of California, San Diego, La Jolla, California USA, 27-31 August 2006.
  34. Koba, K., Osaka, K., Tobari, Y., Toyoda, S., Ohte, N., Katsuyama, M., Suzuki, N., Itoh, M., Yamagishi, H., Kawasaki, M., Kim, S., Yoshida, N. and Nakajima, T.: Characterization of N2O in a temperate forested ecosystem, ISI 2006, Third International Symposium on Isotopomers, University of California, San Diego, La Jolla, California USA, 27-31 August 2006.
  35. Itoh, M., Ohte, N., Koba, K., Suzuki, N., Katsuyama, M., Hayamizu, K. and Tani, M.: Hydrobiogeochemical Influences on Methane Emission from Temperate Forested Wetlands in Central Japan, International Conference on Hydrology and Management of Forested Wetlands, New Bern, USA, 2006.4.
  36. Itoh, M., Ohte, N., Koba, K., Sugimoto, A., Katsuyama, M., Hayamizu, K., and Tani, M.: Hydrobiogeochemistry and its influences on methane dynamics in temperate forested wetlands, 2nd EAFES International Congress, Niigata, Japan, 2006.3.
  37. Kabeya, N., Katsuyama, M., Kawasaki, M., Ohte, N. and Sugimoto, A.: Estimation of mean residence time in subsurface waters in a small headwater catchment, Headwater '05, the sixth internatinal conference on headwater control, Bergen, Norway, 2005.6.
  38. Osaka, K., Ohte, N., Koba, K., Nakajima, T. and Katsuyama, M.: Hydrologic controls on nitrous oxide production and consumption in a forested headwater catchment in central Japan, AGU Fall Meeting, San Francisco, USA, 2004.12.
  39. Itoh, M., Ohte, N., Koba, K., Katsuyama, M. and Kawasaki, M.: Spatial And Temporal Variation Of Methane Fluxes In A Small Humid Temperate Forest Watershed In Japan, AGU Fall Meeting, San Francisco, USA, 2004.12.
  40. Ohte, N., Mimasu, Y., Asano, Y., Uchida, T. Fujimoto, M., Katsuyama, M. and Kawasaki, M.: Relationship between spatial distribution of the streamwater chemistry and catchment-scale geomorphic characteristics: Conceptual model approach focusing on subsurface and groundwater interaction, San Francisco, USA, 2004.12.
  41. Koba, K., Osaka, K., Tobari, Y., Toyoda, S., Ohte, N., Katsuyama, M., Suzuki, N., Itoh, M., Kawasaki, M., Kim, S., Yamagishi, H., Yoshida, N. and Nakajima, T.: Characterization of Groundwater N2O in a Temperate Forested Ecosystem, 2004 Western Pacific Geophysics Meeting, Honolulu, Hawaii, USA, 2004.8.
  42. Hobara, S., Tokuchi, N., Ohte, N., Katsuyama, M., Kawasaki, M., Kim, S.: Biological and hydrological controls of streamwater nitrate concentration in a forested catchment with a natural disturbance, AGU Fall Meeting, San Francisco, USA, 2003.12.
  43. Koba, K., Osaka, K., Toyoda, S., Ohte, N., Katsuyama, M., Kawasaki, M., Kim, S., Yamagishi, H., Itoh, M. Yoshida, N., Nakajima, T.: Characterization of N2O in a temperate forested ecosystem by its isotopomer ratio, ISI 2003 Second International Symposium on Isotopomers, Stresa, Italy, 2003.11.
  44. Obote, T., Ohte, N., Katsuyama, M. and Tani, M.: Dry deposition of gaseous and particulate matters in a Japanese cypress forest, IUGG2003, Sapporo, Japan, 2003.7.
  45. Osaka, K., Ohte, N., Koba, K., Nakajima, T., Katsuyama, M. and Kawasaki, M.: Spatial and seasonal distributions of denitrification zone in a forested headwater catchment in central Japan, IUGG2003, Sapporo, Japan, 2003.7.
  46. Itoh, M., Ohte, N, Katsuyama, M. and Kawasaki, M.: The spatial and temporal variation of methane flux of temperate forest watershed, IUGG2003, Sapporo, Japan, 2003.7.
  47. Kosugi, K., Yoshino, A. and Katsuyama, M.: Measuring vertical water flux and convective solute transport in forest soil with controlled-suction-period lysimeter, IUGG2003, Sapporo, Japan, 2003.7.
  48. Ohte, N., Osaka, K., Koba, K., Tokuchi, N., Katsuyama, M., Kawasaki, M., Kim, S. and Nakajima, T.: Spatial distribution of the denitrification zone in a forested headwater catchment in central Japan: Influences of hydrologic conditions, AGU Fall Meeting, San Francisco, USA, 2002.12.
  49. Kosugi, K. and Katsuyama, M.: Measurements of convective chemical fluxes in vadose zone by suction controlled lysimeter, 17th WCSS, Thailand, 2002.8.
  50. Obote, T., Ohte, N., Tanaka, H., Katsuyama, M. and Tokuchi, N.: Estimation of SO2 and NO2 dry deposition rate in a Japanese cypress forest, 6th International Conference on Acidic Deposition, Tsukuba, Japan, 2000.
  51. Ohte, N., Tokuchi, N., Katsuyama, M., Hobara, S. and Asano, Y.: Episodic rising in nitrate concentration of streamwater by partial dieback of pine forest in Japan: Runoff generation processes as a controlling factor of the seasonality, "Runoff Generation and Implications for River Basin Modeling", Freiburg, Germany, 2000.10.
  52. Ohte, N., Tokuchi, N., Asano, Y. and Katsuyama, M.: Biogeochemical influences on the determination of water chemistry in a temperate forest basin in the central Japan, 2nd IGBP Congress, Shonan Village Center, Japan, 1999.5.
  53. Asano, Y., Ohte, N., Katsuyama, M. and Kobashi, S.: Changes in hydrochemical formation process by forest succession stages, Headwater Control Ⅵ: Hydrology, Water Resources and Ecology in Headwaters, Merano, northern Italy (The Alps), 1998.4.

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