Carbon and Nutrient Cycles Division
Senior Researcher
Current research topics
Effects of climate change on the nitrogen cycle and then the carbon cycle in agricultural ecosystems.
The atmosphere-arable land exchanges and the relevant soil processes in the atmosphere-soil-crop systems.
Contact
E-mail: kentaroh [at] affrc.go.jp
Please change [at] into @ when you e-mail.
Research results (in and after 2000)
(Articles available in English)
Okubo, T., Liu, D., Tsurumaru, H., Ikeda, S., Asakawa, S., Tokida, T., Tago, K., Hayatsu, M., Aoki, N., Ishimaru, K., Ujiie, K., Usui, Y., Nakamura, H., Sakai, H., Hayashi, K., Hasegawa, T., Minamisawa, K.: Elevated CO2 affect community structure of rice root-associated bacteria. Frontiers in Microbiology, 6, Article 136 (2015)
Ikeda, S., Tokida, T., Nakamura, H., Sakai, H., Usui, Y., Okubo, T., Tago, K., Hayashi, K., Sekiyama, Y., Ono, H., Tomita, S., Hayatsu, M., Hasegawa, T., Minamisawa, K.: Characterization of leaf blade- and leaf sheath-associated bacterial community and assessment of their responses to environmental changes of CO2, temperature, and nitrogen levels under field conditions. Microbes and Environments, 30, 51-62 (2015)
Tago, K., Okubo, T., Ito, H., Kikuchi, Y., Hori, T., Sato, Y., Nagayama, A., Hayashi, K., Ikeda, S., Hayatsu, M.: Insecticide-degrading Burkholderia symbionts occupy different ecological niches in sugarcane fields. Microbes and Environments, 30, 29-36 (2015)
Hayashi, K., Tokida, T., Kajiura, M., Yanai, Y., Yano, M.: Cropland soil-plant systems control production and consumption of methane and nitrous oxide and their emissions to the atmosphere. Soil Science and Plant Nutrition, 61, 2-33 (2015)
Kajiura, M., Wagai, R., Hayashi, K.: Optimal thermolysis condition for soil C storage upon plant residue burning: modelling the tradeoff between thermal decomposition and subsequent biodegradation. Journal of Environmental Quality, 44, 228-235 (2014)
Tago, K., Ito, H., Kikuchi, Y., Hori, T., Sato, Y., Nagayama, A., Okubo, T., Navarro, R., Aoyagi, T., Hayashi, K., Hayatsu, M.: A fine-scale phylogenetic analysis of free-living Burkholderia species in sugarcane field soil. Microbes and Environments, 29, 434-437 (2014)
Tokida, T., Nakajima, Y., Hayashi, K., Usui, Y., Katayanagi, N., Kajiura, M., Nakamura, H., Hasegawa, T.: A fully-automated high-throughput instrumentation for δ13C measurement of methane and its application to rice paddy samples. Rapid Communications in Mass Spectrometry, 28, 1-10 (2014)
Miyazawa S, Hayashi, K., Nakamura H, Hasegawa T, Miyao M (2014) Elevated CO2 decreases the photorespiratory NH3 production but does not decrease the NH3 compensation point in rice leaves. Plant and Cell Physiology, 55(9) 1582-1591.
Hayashi, K., Ono, K., Kajiura, M., Sudo, S., Yonemura, S., Fushimi, A., Saito, K., Fujitani, Y., Tanabe, K.: Trace gas and particle emissions from open burning of three cereal crop residues: Increase in residue moistness enhances emissions of carbon monoxide, methane, and particulate organic carbon. Atmospheric Environment, 95, 36-44 (2014)
Okubo, T., Tokida, T., Ikeda, S., Bao, Z., Tago, K., Hayatsu, M., Nakamura, H., Sakai, H., Usui, Y., Hayashi, K., Hasegawa, T., Minamisawa, K.: Effects of elevated carbon dioxide, elevated temperature, and rice growth stage on the community structure of rice root-associated bacteria. Microbes and Environments, 29, 184-190 (2014)
Hayashi, K., Cooper, E.J., Loonen, M.J.J.E., Kishimoto-Mo, A.W., Motohka, T., Uchida, M., Nakatsubo, T.: Potential role of Svalbard reindeer winter droppings in atmosphere-land exchanges of methane and nitrous oxide during summer. Polar Science, 8, 196-206 (2014)
Hayashi, K., Tokida, T., Matsushima, M.Y., Ono, K., Nakamura, H., Hasegawa, T.: Free-air CO2 enrichment (FACE) experiment on net nitrogen fixation at the paddy soil surface under submerged conditions. Nutrient Cycling in Agroecosystems, 98, 57-69 (2014)
Yano, M., Toyoda, S., Tokida, T., Hayashi, K., Hasegawa, T., Koba, K., Yoshida, N.: Isotopomer analysis of production, consumption and soil-to-atmosphere emission processes of N2O at the beginning of flood irrigation. Soil Biology and Biochemistry, 70, 66-78 (2014)
Hayashi, K., Mano, M., Ono, K., Takimoto, T., Miyata, A.: Four-year monitoring of atmospheric ammonia using passive samplers at a single-crop rice paddy field in central Japan. Journal of Agricultural Meteorology, 69, 229-241 (2013)
Hayashi, K., Matsuda, K., Ono, K., Tokida, T., Hasegawa, T.: Amelioration of the reactive nitrogen flux calculation by a day/night separation in weekly mean air concentration measurements. Atmospheric Environment, 79, 462-471 (2013)
Katata, G., Hayashi, K., Ono, K., Nagai, H., Miyata, A., Mano, M.: Coupling atmospheric ammonia exchange process over a rice paddy field with a multi-layer atmosphere-soil-vegetation model. Agricultural and Forest Meteorology, 180, 1-21 (2013)
Katayanagi, N., Ono, K., Fumoto, T., Mano, M., Miyata, A., Hayashi, K.*: Validation of the DNDC-Rice model to discover problems in evaluating the nitrogen balance at a paddy field for single-cropping of rice. Nutrient Cycling in Agroecosystems, 95, 255-268 (2013) * corresponding author
Ono, K., Maruyama, A., Kuwagata, T., Mano, M., Takimoto, T., Hayashi, K., Hasegawa, T., Miyata, A.: Canopy-scale relationships between stomatal conductance and photosynthesis in irrigated rice. Global Change Biology, 19, 2209-2220 (2013)
Nouchi, I., Hayashi, K., Hiradate, S., Ishikawa, S., Fukuoka, M., Chen, C., Kobayashi, K.: Overcoming the difficulties in collecting apoplastic fluid from rice leaves by the infiltration-centrifugation method. Plant and Cell Physiology, 53, 1659-1668 (2012).
Yamaguchi, N., Eguchi, S., Fujiwara, H., Hayashi, K., Tsukada, H.: Radiocaesium and radioiodine in the soil particles stirred up by agricultural practices: Field observation after the Fukushima accident. Science of the Total Environment, 425, 128-134 (2012).
Hayashi, K., Ono, K., Tokida, T., Mano, M., Takimoto, T., Miyata, A., Matsuda, K.: Atmosphere-rice paddy exchanges of inorganic aerosols and relevant gases during a winter and a summer weeks. Journal of Agricultural Meteorology, 68, 55-68 (2012).
Hayashi, K., Tokida, T., Hasegawa, T.: Potential ammonia emission from flag leaves of paddy rice (Oryza sativa L. cv. Koshihikari). Agriculture, Ecosystems & Environment, 144, 117-123 (2011).
Hayashi, K., Matsuda, K., Takahashi, A., Nakaya, K.: Atmosphere-forest exchanges of ammonia and particulate ammonium in a cool-temperate deciduous forest in central Japan during a summer week. Asian Journal of Atmospheric Environment, 5, 134-143 (2011).
Hayashi, K., Koga, N., Fueki, N.: Limited ammonia volatilazation loss from upland fields of Andosols following fertilizer applications. Agriculture, Ecosystems & Environment, 140, 534-538 (2011)
Endo, T., Yagoh, H., Sato, K., Sawada, K., Hayashi, K., Matsuda, K., Noguchi, I.: Estimation of annual dry deposition of sulfur and nitrogen in Japanese EANET sites during 2003-2008. Atmospheric Environment, 45, 1259-1267 (2011)
Matsuda, K., Fujimura, Y., Hayashi, K., Takahashi, A., Nakaya, K.: Deposition velocity of PM2.5 sulfate in the summer above a deciduous forest in central Japan. Atmospheric Environment, 44, 4582－4587 (2010)
Yang, R., Hayashi, K., Zhu, B., Li, F., Yan, X.: Atmospheric NH3 and NO2 concentration and nitrogen deposition in an agricultural catchment of Eastern China. Science of the Total Environment, 408, 4624-4632 (2010)
Hojito, M., Hayashi, K.*, Matsuura, S., Kohyama, K.: Two-year monitoring of the vertical distribution of ammonia in the atmosphere above an intensive dairy farming area in central Japan. Journal of Japan Society for Atmospheric Environment, 45, 166-170 (2010) * Corresponding author
Hojito, M., Hayashi, K., Matsuura, S.: Ammonia exchange on grasslands in an intensive dairying region in central Japan. Soil Science and Plant Nutrition, 56, 503-511 (2010)
Hayashi, K., Yan, X.: Airborne nitrogen load in Japanese and Chinese agroecosystems. Soil Science and Plant Nutrition, 56, 2-18 (2010)
Watenabe, T., Son, T.T., Hung, N.N., Truong, N.V., Man, L.H., Luan, N.T., Hayashi, K., Ito, O.: Measurement of ammonia volatilization from flooded paddy fields in Vietnam. Soil Science and Plant Nutrition, 55, 793-799 (2009)
Hayashi, K., Koga, N., Yanai, Y.: Effects of field-applied composted cattle manure and chemical fertilizer on ammonia and particulate ammonium exchanges at an upland field. Atmospheric Environment, 43, 5702-5707 (2009)
Hayashi, K., Hayakawa, A., Akiyama, H., and Yagi, K.: Measurement of ammonia emission using a dynamic chamber technique: A case study of surface-incorporated manure and ammonium sulfate at an upland field of light-colored Andosol, Soil Science and Plant Nutrition, 55, 571-581 (2009)
Hayashi, K., Takagi, K., Noguchi, I., Fukuzawa, K., Takahashi, H., Fukazawa, T., Shibata, H., and Fujinuma, Y.: Ammoniacal nitrogen emission from a young larch ecosystem afforested after clear-cutting of a pristine forest in northernmost Japan. Water, Air, and Soil Pollution, 200, 33-46 (2009)
Hayashi, K., Hiradate, S., Ishikawa, S., and Nouchi, I.: Ammonia exchange between rice leaf blades and the atmosphere: Effect of broadcast urea and changes of xylem sap and leaf apoplastic ammonium concentrations. Soil Science and Plant Nutrition, 54, 807-818 (2008)
Hayashi, K., Nishimura, S., and Yagi, K.: Ammonia volatilization from a paddy field following applications of urea: Rice plants are both an absorber and an emitter for atmospheric ammonia. Science of the Total Environment, 390, 486-495 (2008)
Matsuda, K., Takahashi, A., Hayashi, K., and Sorimachi, A.: A review of field studies on dry deposition in East Asia. Journal of Japanese Society of Atmospheric Environment, 42, 261-270 (2007) in Japanese with English abstract
Hayashi, K., Komada, M., and Miyata, A.: Atmospheric deposition of reactive nitrogen on turf grassland in central Japan: Comparison of the contribution of wet and dry deposition. Water, Air, and Soil Pollution: Focus, 7, 119-129 (2007)
Noguchi, I., Hayashi, K., Aikawa, M., Ohizumi, T., Minami, Y., Kitamura, M., Takahashi, A., Tanimoto, H., Matsuda, K., and Hara, H.: Temporal trend of non-sea salt sulfate and nitrate in wet deposition in Japan. Water, Air, and Soil Pollution: Focus, 7, 67-75 (2007)
Hayashi, K. and Noguchi, I.: Indirect emission of nitrous acid from grasslands indicated by concentration gradients. Journal of Japanese Society of Atmospheric Environment, 41, 279-287 (2006) in Japanese with English abstract
Hayashi, K., Nishimura, S., and Yagi, K.: Ammonia volatilization from the surface of a Japanese paddy field during rice cultivation. Soil Science and Plant Nutrition, 52, 545-555 (2006)
Hayashi, K., Noguchi, I., Ohizumi, T., Aikawa, M., Kitamura, M., Takahashi, A., Matsuda, K., Minami, Y., and Hara, H.: Key features of wet deposition in Japan: Results of the Japanese Acid Deposition Survey for 20 years. IGACtivities Newsletter, 33, 2-6 (2006)
Hayashi, K., Nakagawa, A., Itsubo, N., and Inaba, A.: Expansion of Damage Function for Stratospheric Ozone Depletion to Cover Major Endpoints Regarding Life Cycle Impact Assessment. International Journal of Life Cycle Assessment, 11, 150-161 (2006)
Hayashi, K., Komada, M., and Miyata, A.: Estimation of dry deposition of ammoniacal nitrogen using an inferential method - Effects of ammonia volatilization through plant stomata and surface wetness on dry deposition velocity -. Journal of Japanese Society of Atmospheric Environment, 41, 78-90 (2006) in Japanese with English abstract
Hojito, M., Hayashi, K., Murano, K., and Mori, A.: The status of atmospheric concentrations of ammonia in an intensive dairy farming area in central Japan. Journal of Japanese Society of Soil Science and Plant Nutrition, 77, 53-57 (2006) in Japanese with English abstract
Hojito, M., Matsunami, H., Hayashi, K., Murano, K., and Mori, A.: The status of wet deposition of nitrogen compounds in an intensive dairy farming area in central Japan. Journal of Japanese Society of Soil Science and Plant Nutrition, 77, 47-52 (2006) in Japanese with English abstract
Hayashi, K., Noguchi, I., Ohizumi, T., Aikawa, M., Takahashi, A., Tanimoto, H., Matsuda, K., Minami, Y., and Hara, H.: Wet deposition of inorganic nitrogen in Japan: Findings from the Japanese Acid Deposition Survey. In Z. Zhu, K. Minami, and G. Xing (eds.), 3rd International Nitrogen Conference Contributed Papers, Science Press USA, 598-608 (2005)
Hayashi, K. and Okazaki, M.: Relationships between the high aluminum concentration in soil solution and other chemical properties of acidic soil in Kumagaya, central Japan. Soil Science and Plant Nutrition, 51, 655-658 (2005)
Hayashi, K., Okazaki, M., Itsubo, N., and Inaba, A.: Development of Damage Function of Acidification for Terrestrial Ecosystems Based on the Aluminum Toxicity on Net Primary Production. International Journal of Life Cycle Assessment, 9, 13-22 (2004)
Hayashi, K. and Okazaki, M.: Development of a screening method on forest decline due to acid deposition: A case study over the South Kanto District using the BC/Al ratio as an impact indicator. Environmental Science, 16, 377-392 (2003) in Japanese with English abstract
Hayashi, K. and Okazaki, M.: Effect of Volcanic Fumes from Mt.Oyama, MiyakejimaIsland, on Atmospheric Deposition, Soil Solution, and Soil Properties in Kumagaya, Central Japan II. Soil Properties. Soil Science and Plant Nutrition, 49, 503-511 (2003)
Hayashi, K. and Okazaki, M.: Effect of Volcanic Fumes from Mt. Oyama, MiyakejimaIsland, on Atmospheric Deposition, Soil Solution and Soil Properties in Kumagaya, CentralJapanI. Chemical Properties of Atmospheric Deposition and Soil Solution. Soil Science and Plant Nutrition, 48, 401-411 (2002)
Hayashi, K. and Okazaki, M.: Acid Deposition and Critical Load Map of Tokyo. Water, Air, and Soil Pollution, 130, 1211-1216 (2001)
Hayashi, K., Itsubo, N., and Inaba, A.: Development of Damage Function for Stratospheric Ozone Layer Depletion – A Tool Towards to the Improvement of the Quality of Life Cycle Impact Assessment –. International Journal of Life Cycle Assessment, 5, 265-272 (2000)