Latest Update：2023/02/15 09:48:45

HAYASHI Seiji

Researcher Name: HAYASHI Seiji

Div (Section) name/title: Fukushima Regional Collaborative Research Center (FRECC)／Research Group Manager

Research Subject: Evaluation and prediction of nitrogen load from nitrogen saturated forest area and development of its reduction scenario

Degree(s): Dr. Eng.

Professional Qualification(s): Civil Engineering,Forestry

Environmental Speciality Field: soil environment,water environment,watershed management

Research Subject

Fiscal Year: 2022
- 25989 : Study for sustainable society based on regional collaboration
- 25992 : Co-designing solution and its implementation to develop sustainable regional society
- 25993 : -
- 25995 : Research of environmental impacts and management in the disaster areas of Fukushima
- 25997 : Studies for emergence of regional resources and systems at Hama-dori, Fukushima, lifted the evacuation instruction
- 26001 : Research on evaluation and clarification of effects and mechanisms of climate change
- 26002 : Research on Advancement of Climate Change Impact Assessment Methodology
- 26003 : Research to enhance adaptation strategies and practices based on scientific projections
- 26019 : Environmental emergency and resilience research field
- 26035 : Monitoring the dynamics of radiocesium in a multi-media environment
- 26183 : Promotion of coordination and Co-production with local stakeholders
- 26184 : Development of a comprehensive environmental management approach to prepare for future nuclear disasters from environmental perspectives
- 26293 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
Fiscal Year: 2021
- 25503 : -
- 25522 : Study for sustainable society based on regional collaboration
- 25525 : Co-designing solution and its implementation to develop sustainable regional society
- 25527 : Research of environmental impacts and management in the disaster areas of Fukushima
- 25529 : Studies for emergence of regional resources and systems at Hama-dori, Fukushima, lifted the evacuation instruction
- 25535 : Research on evaluation and clarification of effects and mechanisms of climate change
- 25536 : Research on Advancement of Climate Change Impact Assessment Methodology
- 25537 : Research to enhance adaptation strategies and practices based on scientific projections
- 25544 : Environmental emergency and resilience research field
- 25667 : Promotion of coordination and Co-production with local stakeholders
- 25674 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
- 25699 : Development of a comprehensive environmental management approach to prepare for future nuclear disasters from environmental perspectives
- 25766 : Monitoring the dynamics of radiocesium in a multi-media environment
Fiscal Year: 2020
- 25098 : Harmonization with Nature Research Program
- 25101 : Environmental Recovery Research Program
- 25112 : Environmental Emergency Research Field
- 25127 : Center for Climate Change Adaptation (CCCA)
- 25140 : Evaluation of Ecosystem Functions and Services and their Sustainable Use
- 25153 : Analysis and prediction of radioactive substances behavior in multimedia environment
- 25162 : Environmental Emergency Research Program
- 25327 : Studies on Advancing the Methods for Climate Change Impacts Assessment
Fiscal Year: 2019
- 24695 : Harmonization with Nature Research Program
- 24698 : Environmental Emergency Research Program
- 24707 : Environmental Emergency Research Field
- 24720 : Evaluation of Ecosystem Functions and Services and their Sustainable Use
- 24732 : Environmental Recovery Research Program
- 24734 : Analysis and prediction of radioactive substances behavior in multimedia environment
- 24757 : Center for Climate Change Adaptation (CCCA)
- 24975 : Studies on Advancing the Methods for Climate Change Impacts Assessment
Fiscal Year: 2018
- 24303 : Evaluation of ecosystem functions and services and their sustainable use
- 24324 : Environmental Recovery Research Program
- 24326 : Analysis and Prediction of Radioactive Substances Behavior in Multimedia Environment
- 24340 : Climate Change Strategy Collaboration Office
- 24351 : Environmental Emergency Research Field
- 24354 : Harmonization with Nature Research Program
- 24357 : Environmental Emergency Research Program
- 24572 : Strategic research on monitoring and countermeasures for environmental radioactive material pollution using a backcasting approach
Fiscal Year: 2017
- 23825 : Evaluation of ecosystem functions and services and their sustainable use
- 23845 : Harmonization with Nature Research Program
- 23848 : Environmental Emergency Research Program
- 23857 : Environmental Emergency Research Field
- 23861 : Climate Change Strategy Collaboration Office
- 23864 : Environmental Recovery Research Program
- 23866 : Analysis and Prediction of Radioactive Substances Behavior in Multimedia Environment
- 24050 : Strategic research on monitoring and countermeasures for environmental radioactive material pollution using a backcasting approach
Fiscal Year: 2016
- 23408 : Harmonization with Nature Research Program
- 23413 : Evaluation of ecosystem functions and services and their sustainable use
- 23427 : Environmental Recovery Research Program
- 23429 : Analysis and Prediction of Radioactive Substances Behavior in Multimedia Environment
- 23446 : Environmental Emergency Research Field
- 23636 : Strategic research on monitoring and countermeasures for environmental radioactive material pollution using a backcasting approach
- 23732 : Environmental Emergency Research Program
Fiscal Year: 2015
- 23010 : Assessment of functions and integrity of basin ecosystems
- 23011 : Evaluation on linkage between ecosystem function and environmental factor in river basin
- 23036 : Environmental Recovery Research Program
- 23317 : Environmental conservation of subtropical islands considering biodiversity and regional economy
Fiscal Year: 2014
- 22598 : Assessment of functions and integrity of basin ecosystems
- 22599 : Evaluation on linkage between ecosystem function and environmental factor in river basin
- 22625 : Study on dynamics of radioactive materials in multimedia environment
- 22647 : Environmental Recovery Research Program
- 22812 : Analysis and Prediction of Radioactive Substances Behavior in Multimedia Environment
- 22824 : Environmental conservation of subtropical islands considering biodiversity and regional economy
Fiscal Year: 2013
- 22152 : Environmental conservation of subtropical islands considering biodiversity and regional economy
- 22182 : Assessment of functions and integrity of basin ecosystems
- 22183 : Evaluation on linkage between ecosystem function and environmental factor in river basin
- 22209 : Study on dynamics of radioactive materials in multimedia environment
- 22272 : Effect of forest management on the nitrate leaching from conifer plantation catchments in Tochigi prefecture.
- 22449 : Regional environmental assessment of radioactive materials based on the multimedia modelling and strategic monitoring
Fiscal Year: 2012
- 21753 : Assessment of functions and integrity of basin ecosystems
- 21754 : Evaluation on linkage between ecosystem function and environmental factor in river basin
- 21780 : Study on dynamics of radioactive materials in multimedia environment
- 21913 : Regional environmental assessment of radioactive materials based on the multimedia modelling and strategic monitoring
- 21978 : Develping methods for monitoring system of transfiguration of Kushiro mire and harmonic management on wetland restration
- 21988 : Historic changes in coral reefs and their stressors
- 21991 : Kumejima Project - Development of a biodiversity conservation model in the Nansei Islands to activate local communities and its outreach
- 22040 : Evaluation and prediction of nitrogen load from nitrogen saturated forest area
- 22130 : A study on comprehensive assessment of climate change impacts in Tokyo
Fiscal Year: 2011
- 21278 : Cycling of organic matter and its interactivity with microbial ecosystem in lake
- 21312 : Evaluation on linkage between ecosystem function and environmental factor in river basin
- 21349 : Historic changes in coral reefs and their stressors
- 21353 : Kumejima Project - Development of a biodiversity conservation model in the Nansei Islands to activate local communities and its outreach
- 21389 : A study on comprehensive assessment of climate change impacts in Tokyo
- 21551 : Develping methods for monitoring system of transfiguration of Kushiro mire and harmonic management on wetland restration
- 21647 : Study on multimedia modeling and long-term monitoring for radioactive substance
- 21712 : Development of the systems for evaluating regional water and material cycles in East Asia
Fiscal Year: 2010
- 20872 : Cycling of organic matter and its interactivity with microbial ecosystem in lake
- 20929 : Historic changes in coral reefs and their stressors
- 20932 : Impact assessment of global- and local-scale stresses on coral reefs
- 20937 : Kumejima Project - Development of a biodiversity conservation model in the Nansei Islands to activate local communities and its outreach
- 20970 : A study on comprehensive assessment of climate change impacts in Tokyo
- 21007 : Pollution of urban soil with atmospheric deposited metals in Kanto area.
- 21013 : Behaviours of rare metals in soil-plant systems
- 21163 : Development of the systems for evaluating regional water and material cycles in East Asia
- 21243 : Develping methods for monitoring system of transfiguration of Kushiro mire and harmonic management on wetland restration
- 21258 : Evaluation and prediction of nitrogen load from nitrogen saturated forest area and development of its reduction scenario
Fiscal Year: 2009
- 20473 : Cycling of organic matter and its interactivity with microbial ecosystem in lake
- 20517 : Behaviours of rare metals in soil-plant systems
- 20599 : Development of the systems for evaluating regional water and material cycles in East Asia
- 20668 : Effect of forest environment on nitrogen runoff control in the highly nitrogen loaded mountainous area
- 20671 : Preliminary study on adaptation to climate change for sewage network system
- 20698 : Develping methods for monitoring system of transfiguration of Kushiro mire and harmonic management on wetland restration
- 20708 : Historic changes in coral reefs and their stressors
- 20712 : Impact assessment of global- and local-scale stresses on coral reefs
- 20786 : A study on comprehensive assessment of climate change impacts in Tokyo
Fiscal Year: 2008
- 20022 : Effect of forest environment on nitrogen runoff control in the highly nitrogen loaded mountainous area
- 20059 : Cycling of organic matter and its interactivity with microbial ecosystem in lake
- 20100 : Develping methods for monitoring system of transfiguration of Kushiro mire and harmonic management on wetland restration
- 20101 : Study about the behavior and natural abundance of the next generation use type elements in soil
- 20231 : Development of the systems for evaluating regional water and material cycles in East Asia
- 20392 : Examination on Environmental Quality Standards for Conservation of the Living Environment in F.Y. 2008 (field observation and mechanism study)
Fiscal Year: 2007
- 10587 : Development of the systems for evaluating regional water and material cycles in East Asia
- 10665 : Study about the behavior and natural abundance of the next generation use type elements in soil
Fiscal Year: 2006
- 10051 : Evaluation and restoration of lake environment based on linkages among the bioreactivity and chemical composition of organic matter
- 10320 : Development of the systems for evaluating regional water and material cycles in East Asia
Fiscal Year: 2005
- 9329 : Study on mathematical model of environmental management of river catchment
- 9351 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application
- 9597 : The study on Environmental Monitoring and Environmental Database in urban and basin scale
Fiscal Year: 2004
- 8936 : Study on mathematical model of environmental management of river catchment
- 8987 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application
Fiscal Year: 2003
- 8600 : Study on mathematical model of environmental management of river catchment
- 8649 : Studies on mass balance of dissolved organic matter in lake and its functions and effects on lacustrine ecosystems and water quality
- 8704 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application
Fiscal Year: 2002
- 8307 : Study on mathematical model of environmental management of river catchment
- 8431 : Studies on mass balance of dissolved organic matter in lake and its functions and effects on lacustrine ecosystems and water quality
- 8487 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia (2) Research on systems analysis on watershed environmens and its application
Fiscal Year: 2001
- 8003 : Study on mathematical model of environmental management of river catchment
- 8215 : Studies on mass balance of dissolved organic carbon in lake and its effects on lake ecosystems and water quality
- 8260 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia<br>(2) Research on systems analysis on watershed environmens and its application

View all

Research Result (Publication)

all
Original Paper
Review
Book
Other Publications

Original Paper
Aggregated transfer factor of 137Cs in edible wild plants and its time dependence after the Fukushima Dai-ichi nuclear accident

Presenter : Takada M., Yasutaka T., Hayashi S., Takagi M., Tagami K.
Title : , Scientific Reports, 12: (2022)
Original Paper
Effects of temperature and oxygen on 137Cs desorption from bottom sediment of a dam lake

Presenter : Tsuji H., Funaki H., Watanabe Mirai., Hayashi S.
Title : , Applied Geochemistry (2022)
Original Paper
Remobilisation of radiocaesium from bottom sediments to water column in reservoirs in Fukushima, Japan

Presenter : Funaki H., Tsuji H., Nakanishi T., Yoshimura K., Sakuma K., Hayashi S.
Title : , Science of the Total Environment, 812: (2022)
Original Paper
Effects of forest litter on dissolved 137Cs concentrations in a highly contaminated mountain river in Fukushima

Presenter : Hayashi S., Tsuji H., Ishii Y.
Title : , Journal of Hydrology: Regional Studies, 41(101099): (2022)
Original Paper
Radiocesium-bearing microparticles cause a large variation in 137Cs activity concentration in the aquatic insect Stenopsyche marmorata (Tricoptera: Stenopsychidae) in the Ota River, Fukushima, Japan

Presenter : Ishii Y., Miura H., Jo J., Tsuji H., Saito R., Koarai K., Hagiwara H., Urushidate T., Nishikiori T., Wada T., Hayashi S., Takahashi Y.
Title : , PLOS ONE, 17(5):e0268629 (2022)
Original Paper
Watershed-Geochemical Model to Simulate Dissolved and Particulate 137Cs Discharge From a Forested Catchment

Presenter : Sakuma K., Hayashi S., Yoshimura K., Kurikami H., Mallins A., Funaki H., Tsuji H., Kobayashi T. , Kitamura A., Iijima K.
Title : , Water Resources Research, 58(8): (2022)
Original Paper
Contrasting seasonality of 137Cs concentrations in two stream animals that share a trophic niche

Presenter : Sakai M., Ishii Y., Tsuji H., Tanaka A., Jo J., Negishi J.N., Hayashi S.
Title : , Environmental Pollution, (120474): (2022)
Original Paper
Seasonal dynamics of the activities of dissolved 137Cs and the 137Cs of fish in a shallow, hypereutrophic lake: Links to bottom-water oxygen concentrations

Presenter : Matsuzaki S., Tanaka A., Kohzu A., Suzuki K., Komatsu K., Shinohara R., Nakagawa M., Nohara S., Ueno R., Satake K., Hayashi S.
Title : , Science of The Total Environment, 761:143257 (2021)
Other Publications
Expanding the Scope of Environmental Emergency Research towards Disaster-resilience and Environmental Sustainability

Presenter : Ohara T., Tajima R., Hirano Y., Iino S., Hayashi S.
Title : , Global Environmental Research, 24(2):275-278 (2021)
Original Paper
Role and Effect of a Dam on Migration of Radioactive Cesium in a River Catchment after the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Hayashi S., Tsuji H.
Title : , Global Environmental Research, 24(2):105-113 (2021)
Review
Untangling radiocesium dynamics of forest-stream ecosystems: A review of Fukushima studies in the decade after the accident

Presenter : Sakai M., Tsuji H., Ishii Y., Ozaki H., Takechi S., Jo J., Tamaoki M., Hayashi S., Gomi T.
Title : , Environmental Pollution, 288(117744): (2021)
Original Paper
Antimony from brake dust to the combined sewer collection system via road effluent under rainy conditions

Presenter : Ozaki H., Hayashi S., Yoshimura K., Asaoka Y.
Title : , Environmental Monitoring and Assessment, 193(369): (2021)
Original Paper
Dynamics of radiocaesium within forests in Fukushima-results and analysis of a model inter-comparison

Presenter : Hashimoto S., Tanaka T., Komatsu M., Gonze MA., Sakashita W., Kurikami H., Nishina K., Ota M., Ohashi S., Calmon P., Coppin F., Imamura N., Hayashi S., Hirai K. , Hurtevent P., Koarashi J., Manaka T., Miura S., Shinomiya Y., Shaw G., Thiry Y.
Title : , Journal of Environmental Radioactivity, 238-239(2021): (2021)
Original Paper
Historical trends of riverine nitrogen loading from land to the East China Sea: a model-based evaluation

Presenter : Nishina K., Ito A., Zhou F., Yan X., Hayashi S., Winiwarter W.
Title : , Environmental Research Communications, 3(8):085005 (2021)
Book
Inflow/Outflow of Radiocesium in a Dam Lake and Its Accumulation in Sediments

Presenter : Tsuji H., Kohzu A., Sato T., Hayashi S.
Title : , Impacts of Fukushima Nuclear Accident on Freshwater Environments (2021)
Original Paper
Different factors determine 137Cs concentration factors of freshwater fish and aquatic organisms in lake and river ecosystems

Presenter : Ishii Y., Matsuzaki S., Hayashi S.
Title : , Journal of Environmental Radioactivity Volume , March 2020, 106102, 213: (2020)
Original Paper
Data on 137Cs concentration factor of freshwater fish and aquatic organisms in lake and river ecosystems

Presenter : Ishii Y., Matsuzaki S., Hayashi S.
Title : , Data in Brief, 28: (2020)
Book
Catchment and Rivers

Presenter : Onda Y., Hayashi S., Nagao S., Ishii Y., Tsuji H., Taniguchi K., Nishina K., Suzuki K., Watanabe S., Prohl G., Boyer P., Laurent G.-S.
Title : , Environmental Transfer of Radionuclides in Japan following the Accident at the Fukushima Daiichi Nuclear Power Plant (2020)
Original Paper
Impact of the 2019 typhoons on sediment source contributions and radiocesium concentrations in rivers draining the Fukushima radioactive plume, Japan

Presenter : Evrard O., Durand R., Nakao A. , Laceby P.J., Lefevre I., Wakiyama Y., Asanuma-Brice C., Cerdan O., Hayashi S.
Title : , Comptes Rendus Geosciences, 352(3):199-211 (2020)
Original Paper
Dynamics of 137Cs in Water and Phyto- and Zooplankton in a Reservoir Affected by the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Tsuji H., Nakagawa M., Iijima K., Funaki H., Yoshimura K., Sakuma K., Hayashi S.
Title : , Global Environmental Research, 24(2):115-127 (2020)
Original Paper
Comparison of 0.1 M Stable CsCl and 1 M NH4NO3 as an Extraction Reagent to Evaluate Cs-137 Mobility in Soils

Presenter : Koshikawa-K.M., Watanabe Mirai., Tamaoki M., Ito S., Takamatsu T., Murata T., Saito T., Hayashi S.
Title : , Analytical Sciences, 35(2):153-158 (2019)
Original Paper
137Cs transfer from canopies onto forest floors at Mount Tsukuba in the four years following the Fukushima nuclear accident

Presenter : Nishikiori T., Watanabe Mirai., Koshikawa-K.M., Watanabe K., Yamamura S., Hayashi S.
Title : , Science of the Total Environment, 659:783-789 (2019)
Original Paper
Long-term observations of the vertical distributions of mineral elements and phosphorus dynamics in sediments in a shallow eutrophic lake in Japan

Presenter : Shimotori K., Imai A., Kohzu A., Komatsu K., Koshikawa-K.M., Hayashi S., Watanabe Mirai.
Title : , Journal of Soils and Sediments, 19(3):1566-1575 (2019)
Original Paper
Reconstruction of uranium and plutonium isotopic signatures in sediment accumulated in the Mano Dam reservoir, Japan, before and after the Fukushima nuclear accident

Presenter : Jaegler H., Pointurier F., Diez-Fernandez S., Gourgiotis A., Isnard H., Hayashi S., Tsuji H., Onda Y., Hubert A., Laceby J.P., Evrard O.
Title : , Chemosphere (2019)
Original Paper
Vertical/spatial movement and accumulation of 137Cs in a shallow lake in the initial phase after the Fukushima Daiichi nuclear power plant accident

Presenter : Tsuji H., Tanaka A., Komatsu K., Kohzu A., Matsuzaki S., Hayashi S.
Title : , Applied Radiation and Isotopes (2019)
Original Paper
Repeatability and reproducibility of measurements of low dissolved radiocesium concentrations in freshwater using different pre‑concentration methods

Presenter : Kurihara M., Yasutaka T., Aono T., Ashikawa N., Ebina H., Iijima T., Ishimaru K. , Kanai R., Karube Z., Konnai Y., Kubota T., Maehara Y., Maeyama T., Okizawa Y., Ota H., Otosaka S., Sakaguchi A., Tagomori H., Taniguchi K., Tomita M., Tsukada H., Hayashi S., Lee S., Miyazu S., Shin M., Nakanishi T., Nishikiori T., Onda Y., Shinano T., Tsuji H.
Title : , Journal of Radioanalytical and Nuclear Chemistry, 1-9 (2019)
Original Paper
Factors controlling dissolved 137Cs concentrations in east Japanese Rivers

Presenter : Tsuji H., Ishii Y., Shin M., Taniguchi K., Arai H., Kurihara M., Yasutaka T., Kuramoto T., Nakanishi T., Lee S., Shinano T., Onda Y., Hayashi S.
Title : , Science of The Total Environment, 697: (2019)
Original Paper
Source dynamics of radiocesium-contaminated particulate matter deposited in an agricultural water reservoir after the Fukushima nuclear accident

Presenter : Huon S., Hayashi S., Laceby J.P., Tsuji H., Onda Y., Evrard O.
Title : , Science of the Total Environment, 612:1079-1090 (2018)
Original Paper
Applicability of Kd for modelling dissolved 137Cs concentrations in Fukushima river water: Case study of the upstream Ota River

Presenter : Sakuma K., Tsuji H., Hayashi S., Funaki H., Malins A., Yoshimura K., Kitamura A., Iijima K., Hosomi M.
Title : , Journal of Environmental Radioactivity, 184-185:53-62 (2018)
Original Paper
Calibration of forest 137Cs cycling model ”FoRothCs” via approximate Bayesian computation based on 6-year observations from plantation forests in Fukushima

Presenter : Nishina K., Hashimoto S., Imamura N., Ohashi S., Komatsu M., Kaneko S., Hayashi S.
Title : , Journal of Environmental Radioactivity, 193-194:82-90 (2018)
Original Paper
Radiocesium Transfer in Forest Insect Communities after the Fukushima Dai-ichi Nuclear Power Plant Accident

Presenter : Ishii Y., Hayashi S., Takamura N.
Title : , PLoS ONE , 12(1): (2017)
Original Paper
Reconstruction of spatially detailed global map of NH4+ and NO3 - application in synthetic nitrogen fertilizer

Presenter : Nishina K., Ito H., Hanasaki N., Hayashi S.
Title : , Earth System Science Data, 9:149-162 (2017)
Original Paper
Varying sensitivity of mountainous streamwater base-flow NO3− concentrations to N deposition in the northern suburbs of Tokyo

Presenter : Nishina K., Watanabe Mirai., Koshikawa-K.M., Takamatsu T., Morino Y., Nagashima T., Soma K., Hayashi S.
Title : , Scientific Reports, 7:7701 (2017)
Original Paper
Growth rates and tolerance to low water temperature of freshwater bacterioplankton strains: ecological insights from shallow hypereutrophic lakes in Japan

Presenter : Watanabe K., Ishii Y., Komatsu N., Kitamura T., Watanabe Mirai., Yamamura S., Imai A., Hayashi S.
Title : , Hydrobiologia, 792(1):67-81 (2017)
Original Paper
Using isotopes to determine the contribution of volcanic ash to Sr and Ca in stream waters and plants in a granite watershed, Mt. Tsukuba, central Japan

Presenter : Koshikawa-K.M., Watanabe Mirai., Shin K., Nishikiori T., Takamatsu T., Hayashi S., Nakano T.
Title : , Environmental Earth Sciences, 75(501): (2016)
Other Publications
Development of a copper-substituted, Prussian blue-impregnated, nonwoven cartridge filter to rapidly measure radiocesium concentration in seawater

Presenter : Yasutaka T., Miyazu S., Tsuji H., Arita K., Hayashi S., Takahashi A., Kawamoto T., Aoyama M.
Title : , Journal of Nuclear Science and Technology (2016)
Reconstruction of spatially detailed global map of NH4+ and NO3- application in synthetic nitrogen fertilizer

Presenter : Nishina K., Ito A., Hanasaki N., Hayashi S.
Title : , Earth System Science Data Discussion, 1-26 (2016)
Original Paper
Microbial nitrification in throughfall of a Japanese cedar associated with archaea from the tree canopy

Presenter : Watanabe K., Kohzu A., Suda W., Yamamura S., Takamatsu T., Takenaka A., Koshikawa-K.M., Hayashi S., Watanabe Mirai.
Title : , SpringerPlus, 5(1596): (2016)
Original Paper
Behavior of dissolved radiocesium in river water in a forested watershed in Fukushima Prefecture

Presenter : Tsuji H., Nishikiori T., Yasutaka T., Watanabe Mirai., Ito S., Hayashi S.
Title : , Journal of Geophysical Research: Biogeosciences (2016)
Original Paper
Analysis of Temporal Changes in Terrestrial Cesium-137 Using Publicly Available Monitoring Data in Japan

Presenter : Imaizumi Y., Kuroda K., Hayashi S., Suzuki N.
Title : , Global Environmental Research, 20(1-2):59-66 (2016)
Review
Migration and accumulation of radioactive cesium in the upstream region of river watersheds affected by the Fukushima Daiichi Nuclear Power Plant accident: A review

Presenter : Hayashi S.
Title : , Global Environmental Research, 20(1&2):45-53 (2016)
Original Paper
Uptake and translocation of radiocesium in cedar leaves following the Fukushima nuclear accident

Presenter : Nishikiori T., Watanabe Mirai., Koshikawa-K.M., Takamatsu T., Ishii Y., Ito S., Takenaka A., Watanabe K., Hayashi S.
Title : , Science of the Total Environment, 502:611-616 (2015)
Original Paper
An integrated approach to tropical and subtropical island conservation

Presenter : Yamano H., Satake K., Inoue T., Kadoya T., Hayashi S., Kinjo K., Nakajima D., Oguma H., Ishiguro S., Okagawa A., Suga S., Horie T., Nohara K., Fukayama N., Hibiki A.
Title : , Journal of Ecology and Environment, 38:271-279 (2015)
Original Paper
Modeling radionuclide Cs and C dynamics in an artificial forest ecosystem in Japan -FoRothCs ver1.0-

Presenter : Nishina K., Hayashi S.
Title : , Frontiers in Environmental Science, 3(61): (2015)
Book
Land cover classification using multi-temporal satellite images in a subtropical area

Presenter : Ishihara M., Hasegawa H., Hayashi S., Yamano H.
Title : , The biodiversity observation network in the Asia-Pacific region: Integrative observations and assessments of Asian biodiversity (2014)
Book
Land cover classification using multi-temporal satellite images in a subtropical region

Presenter : Ishihara M., Hasegawa H., Hayashi S., Yamano H.
Title : , The biodiversity observation network in the Asia-Pacific region: Integrative observations and assessments of Asian biodiversity (2014)
Original Paper
Episode Analysis of Deposition of Radiocesium from the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Morino Y., Ohara T., Watanabe Mirai., Hayashi S., Nishizawa M.
Title : , Environmental Science and Technology, 47:2314-2322 (2013)
Original Paper
Ecological niche separation in the Polynucleobacter subclusters linked to quality of dissolved organic matter: a demonstration using a high sensitivity cultivation-based approach

Presenter : Watanabe K., Komatsu N., Kitamura T., Ishii Y., Park H-D., Miyata R., Noda N., Sekiguchi Y., Satou T., Watanabe Mirai., Yamamura S., Imai A., Hayashi S.
Title : , Environmental Microbiology, 14(9):2511-2525 (2012)
Original Paper
Microbial biomass and nitrogen transformations in surface soils strongly acidified by volcanic hydrogen sulfide deposition in Osorezan, Japan

Presenter : Watanabe Mirai., Yamamura S., Takamatsu T., Koshikawa-K.M., Hayashi S., Murata T., Saito-S.S., Inubushi K., Sakamoto K.
Title : , Soil Sci.Plant Nutr., 56(1):123-132 (2010)
Original Paper
Pollution of montane soil with Cu, Zn, As, Sb, Pb, and nitrate in Kanto, Japan.

Presenter : Takamatsu T., Watanabe Mirai., Koshikawa-K.M., Murata T., Yamamura S., Hayashi S.
Title : , Sci.Total Environ., 408(8):1932-1942 (2010)
Climate teleconnections to Yangtze river seasonal streamflow at the Three Gorges Dam,China

Presenter : Xu K-Q., Brown C.(*1), Kwon H-H.(*1), Lall U.(*1), Zhang J.(*2), Hayashi S., Chen Z.(*3)
Title : , Int.J.Climatol., 27:771-780 (2007)
Measuring water storage fluctuations in lake dongtin,China,by TOPEX/POSEIDON satellite altimetry

Presenter : Zhang J.(*1), Xu K-Q., Yang Y.,(*2), Hayashi S., Watanabe M.(*3)
Title : , Environ.Monit.Assess., 115(1/3):23-27 (2006)
Nitrogen budgets of agricultural fields of the Changjiang River basin from 1980 to 1990

Presenter : Bao X.(*1), Watanabe M.(*2), Wang Q-X., Hayashi S., Liu J.(*3)
Title : , Sci.Total Environ., 363(2006):136-148 (2006)
Optimizing irrigation management for wheat to reduce groundwater depletion in the piedmont region of the Taihang Mountains in the North China Plain

Presenter : Yang Y.(*1), Zhang X.(*1), Watanabe M.(*2), Zhang J.(*3), Wang Q-X., Hayashi S.
Title : , Agric.Water Manage., 82(2006):25-44 (2006)
Monitoring and simulation of water,heat,and CO2 fluxes in terrestrial ecosystems based on the APEIS-FLUX system

Presenter : HAYASHI Seiji,
Title : , J.Geogr.Sci., 15(2):131-141 (2005)
Simulated sediment flux during 1998 big-flood of the Yangtze(Changjiang) River,China

Presenter : HAYASHI Seiji, Xu K-Q., , Chen Z.(*1), Zhao Y.(*1)
Title : , J.Hydrol., 313:221-233 (2005)
Characteristics of water quality in the Changjiang River-observations between NIES and CWRC conducted in 1998 and 1999(Chinese)

Presenter : Hayashi S., Xu K-Q., Maki H., Murakami S.
Title : , Acta Geogra.Sin., 59(1):118-124 (2004)
A methodology of integrated environmental monitoring: A review on researches of APEIS project (in Chinese)

Presenter : HAYASHI Seiji,
Title : , Acta Geogr.Sin., 59(1):3-12 (2004)
Monitoring and simulation of water,heat and CO2 fluxes in various terrestrial ecosystems (in Chinese)

Presenter : Hayashi S., Murakami S., Wang Q.-X.
Title : , Acta Geogr.Sin., 59(1):13-24 (2004)
Groundwater-table and recharge changes in the Piedmont region of Taihang Mountain in Gaocheng City and its relation to agricultural water use

Presenter : HAYASHI Seiji
Title : , Water SA, 28(2):171-178 (2002)

View all

Aggregated transfer factor of 137Cs in edible wild plants and its time dependence after the Fukushima Dai-ichi nuclear accident

Presenter : Takada M., Yasutaka T., Hayashi S., Takagi M., Tagami K.
Title : , Scientific Reports, 12: (2022)
Effects of temperature and oxygen on 137Cs desorption from bottom sediment of a dam lake

Presenter : Tsuji H., Funaki H., Watanabe Mirai., Hayashi S.
Title : , Applied Geochemistry (2022)
Remobilisation of radiocaesium from bottom sediments to water column in reservoirs in Fukushima, Japan

Presenter : Funaki H., Tsuji H., Nakanishi T., Yoshimura K., Sakuma K., Hayashi S.
Title : , Science of the Total Environment, 812: (2022)
Effects of forest litter on dissolved 137Cs concentrations in a highly contaminated mountain river in Fukushima

Presenter : Hayashi S., Tsuji H., Ishii Y.
Title : , Journal of Hydrology: Regional Studies, 41(101099): (2022)
Radiocesium-bearing microparticles cause a large variation in 137Cs activity concentration in the aquatic insect Stenopsyche marmorata (Tricoptera: Stenopsychidae) in the Ota River, Fukushima, Japan

Presenter : Ishii Y., Miura H., Jo J., Tsuji H., Saito R., Koarai K., Hagiwara H., Urushidate T., Nishikiori T., Wada T., Hayashi S., Takahashi Y.
Title : , PLOS ONE, 17(5):e0268629 (2022)
Watershed-Geochemical Model to Simulate Dissolved and Particulate 137Cs Discharge From a Forested Catchment

Presenter : Sakuma K., Hayashi S., Yoshimura K., Kurikami H., Mallins A., Funaki H., Tsuji H., Kobayashi T. , Kitamura A., Iijima K.
Title : , Water Resources Research, 58(8): (2022)
Contrasting seasonality of 137Cs concentrations in two stream animals that share a trophic niche

Presenter : Sakai M., Ishii Y., Tsuji H., Tanaka A., Jo J., Negishi J.N., Hayashi S.
Title : , Environmental Pollution, (120474): (2022)
Seasonal dynamics of the activities of dissolved 137Cs and the 137Cs of fish in a shallow, hypereutrophic lake: Links to bottom-water oxygen concentrations

Presenter : Matsuzaki S., Tanaka A., Kohzu A., Suzuki K., Komatsu K., Shinohara R., Nakagawa M., Nohara S., Ueno R., Satake K., Hayashi S.
Title : , Science of The Total Environment, 761:143257 (2021)
Role and Effect of a Dam on Migration of Radioactive Cesium in a River Catchment after the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Hayashi S., Tsuji H.
Title : , Global Environmental Research, 24(2):105-113 (2021)
Antimony from brake dust to the combined sewer collection system via road effluent under rainy conditions

Presenter : Ozaki H., Hayashi S., Yoshimura K., Asaoka Y.
Title : , Environmental Monitoring and Assessment, 193(369): (2021)
Dynamics of radiocaesium within forests in Fukushima-results and analysis of a model inter-comparison

Presenter : Hashimoto S., Tanaka T., Komatsu M., Gonze MA., Sakashita W., Kurikami H., Nishina K., Ota M., Ohashi S., Calmon P., Coppin F., Imamura N., Hayashi S., Hirai K. , Hurtevent P., Koarashi J., Manaka T., Miura S., Shinomiya Y., Shaw G., Thiry Y.
Title : , Journal of Environmental Radioactivity, 238-239(2021): (2021)
Historical trends of riverine nitrogen loading from land to the East China Sea: a model-based evaluation

Presenter : Nishina K., Ito A., Zhou F., Yan X., Hayashi S., Winiwarter W.
Title : , Environmental Research Communications, 3(8):085005 (2021)
Different factors determine 137Cs concentration factors of freshwater fish and aquatic organisms in lake and river ecosystems

Presenter : Ishii Y., Matsuzaki S., Hayashi S.
Title : , Journal of Environmental Radioactivity Volume , March 2020, 106102, 213: (2020)
Data on 137Cs concentration factor of freshwater fish and aquatic organisms in lake and river ecosystems

Presenter : Ishii Y., Matsuzaki S., Hayashi S.
Title : , Data in Brief, 28: (2020)
Impact of the 2019 typhoons on sediment source contributions and radiocesium concentrations in rivers draining the Fukushima radioactive plume, Japan

Presenter : Evrard O., Durand R., Nakao A. , Laceby P.J., Lefevre I., Wakiyama Y., Asanuma-Brice C., Cerdan O., Hayashi S.
Title : , Comptes Rendus Geosciences, 352(3):199-211 (2020)
Dynamics of 137Cs in Water and Phyto- and Zooplankton in a Reservoir Affected by the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Tsuji H., Nakagawa M., Iijima K., Funaki H., Yoshimura K., Sakuma K., Hayashi S.
Title : , Global Environmental Research, 24(2):115-127 (2020)
Comparison of 0.1 M Stable CsCl and 1 M NH4NO3 as an Extraction Reagent to Evaluate Cs-137 Mobility in Soils

Presenter : Koshikawa-K.M., Watanabe Mirai., Tamaoki M., Ito S., Takamatsu T., Murata T., Saito T., Hayashi S.
Title : , Analytical Sciences, 35(2):153-158 (2019)
137Cs transfer from canopies onto forest floors at Mount Tsukuba in the four years following the Fukushima nuclear accident

Presenter : Nishikiori T., Watanabe Mirai., Koshikawa-K.M., Watanabe K., Yamamura S., Hayashi S.
Title : , Science of the Total Environment, 659:783-789 (2019)
Long-term observations of the vertical distributions of mineral elements and phosphorus dynamics in sediments in a shallow eutrophic lake in Japan

Presenter : Shimotori K., Imai A., Kohzu A., Komatsu K., Koshikawa-K.M., Hayashi S., Watanabe Mirai.
Title : , Journal of Soils and Sediments, 19(3):1566-1575 (2019)
Reconstruction of uranium and plutonium isotopic signatures in sediment accumulated in the Mano Dam reservoir, Japan, before and after the Fukushima nuclear accident

Presenter : Jaegler H., Pointurier F., Diez-Fernandez S., Gourgiotis A., Isnard H., Hayashi S., Tsuji H., Onda Y., Hubert A., Laceby J.P., Evrard O.
Title : , Chemosphere (2019)
Vertical/spatial movement and accumulation of 137Cs in a shallow lake in the initial phase after the Fukushima Daiichi nuclear power plant accident

Presenter : Tsuji H., Tanaka A., Komatsu K., Kohzu A., Matsuzaki S., Hayashi S.
Title : , Applied Radiation and Isotopes (2019)
Repeatability and reproducibility of measurements of low dissolved radiocesium concentrations in freshwater using different pre‑concentration methods

Presenter : Kurihara M., Yasutaka T., Aono T., Ashikawa N., Ebina H., Iijima T., Ishimaru K. , Kanai R., Karube Z., Konnai Y., Kubota T., Maehara Y., Maeyama T., Okizawa Y., Ota H., Otosaka S., Sakaguchi A., Tagomori H., Taniguchi K., Tomita M., Tsukada H., Hayashi S., Lee S., Miyazu S., Shin M., Nakanishi T., Nishikiori T., Onda Y., Shinano T., Tsuji H.
Title : , Journal of Radioanalytical and Nuclear Chemistry, 1-9 (2019)
Factors controlling dissolved 137Cs concentrations in east Japanese Rivers

Presenter : Tsuji H., Ishii Y., Shin M., Taniguchi K., Arai H., Kurihara M., Yasutaka T., Kuramoto T., Nakanishi T., Lee S., Shinano T., Onda Y., Hayashi S.
Title : , Science of The Total Environment, 697: (2019)
Source dynamics of radiocesium-contaminated particulate matter deposited in an agricultural water reservoir after the Fukushima nuclear accident

Presenter : Huon S., Hayashi S., Laceby J.P., Tsuji H., Onda Y., Evrard O.
Title : , Science of the Total Environment, 612:1079-1090 (2018)
Applicability of Kd for modelling dissolved 137Cs concentrations in Fukushima river water: Case study of the upstream Ota River

Presenter : Sakuma K., Tsuji H., Hayashi S., Funaki H., Malins A., Yoshimura K., Kitamura A., Iijima K., Hosomi M.
Title : , Journal of Environmental Radioactivity, 184-185:53-62 (2018)
Calibration of forest 137Cs cycling model ”FoRothCs” via approximate Bayesian computation based on 6-year observations from plantation forests in Fukushima

Presenter : Nishina K., Hashimoto S., Imamura N., Ohashi S., Komatsu M., Kaneko S., Hayashi S.
Title : , Journal of Environmental Radioactivity, 193-194:82-90 (2018)
Radiocesium Transfer in Forest Insect Communities after the Fukushima Dai-ichi Nuclear Power Plant Accident

Presenter : Ishii Y., Hayashi S., Takamura N.
Title : , PLoS ONE , 12(1): (2017)
Reconstruction of spatially detailed global map of NH4+ and NO3 - application in synthetic nitrogen fertilizer

Presenter : Nishina K., Ito H., Hanasaki N., Hayashi S.
Title : , Earth System Science Data, 9:149-162 (2017)
Varying sensitivity of mountainous streamwater base-flow NO3− concentrations to N deposition in the northern suburbs of Tokyo

Presenter : Nishina K., Watanabe Mirai., Koshikawa-K.M., Takamatsu T., Morino Y., Nagashima T., Soma K., Hayashi S.
Title : , Scientific Reports, 7:7701 (2017)
Growth rates and tolerance to low water temperature of freshwater bacterioplankton strains: ecological insights from shallow hypereutrophic lakes in Japan

Presenter : Watanabe K., Ishii Y., Komatsu N., Kitamura T., Watanabe Mirai., Yamamura S., Imai A., Hayashi S.
Title : , Hydrobiologia, 792(1):67-81 (2017)
Using isotopes to determine the contribution of volcanic ash to Sr and Ca in stream waters and plants in a granite watershed, Mt. Tsukuba, central Japan

Presenter : Koshikawa-K.M., Watanabe Mirai., Shin K., Nishikiori T., Takamatsu T., Hayashi S., Nakano T.
Title : , Environmental Earth Sciences, 75(501): (2016)
Microbial nitrification in throughfall of a Japanese cedar associated with archaea from the tree canopy

Presenter : Watanabe K., Kohzu A., Suda W., Yamamura S., Takamatsu T., Takenaka A., Koshikawa-K.M., Hayashi S., Watanabe Mirai.
Title : , SpringerPlus, 5(1596): (2016)
Behavior of dissolved radiocesium in river water in a forested watershed in Fukushima Prefecture

Presenter : Tsuji H., Nishikiori T., Yasutaka T., Watanabe Mirai., Ito S., Hayashi S.
Title : , Journal of Geophysical Research: Biogeosciences (2016)
Analysis of Temporal Changes in Terrestrial Cesium-137 Using Publicly Available Monitoring Data in Japan

Presenter : Imaizumi Y., Kuroda K., Hayashi S., Suzuki N.
Title : , Global Environmental Research, 20(1-2):59-66 (2016)
Uptake and translocation of radiocesium in cedar leaves following the Fukushima nuclear accident

Presenter : Nishikiori T., Watanabe Mirai., Koshikawa-K.M., Takamatsu T., Ishii Y., Ito S., Takenaka A., Watanabe K., Hayashi S.
Title : , Science of the Total Environment, 502:611-616 (2015)
An integrated approach to tropical and subtropical island conservation

Presenter : Yamano H., Satake K., Inoue T., Kadoya T., Hayashi S., Kinjo K., Nakajima D., Oguma H., Ishiguro S., Okagawa A., Suga S., Horie T., Nohara K., Fukayama N., Hibiki A.
Title : , Journal of Ecology and Environment, 38:271-279 (2015)
Modeling radionuclide Cs and C dynamics in an artificial forest ecosystem in Japan -FoRothCs ver1.0-

Presenter : Nishina K., Hayashi S.
Title : , Frontiers in Environmental Science, 3(61): (2015)
Episode Analysis of Deposition of Radiocesium from the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Morino Y., Ohara T., Watanabe Mirai., Hayashi S., Nishizawa M.
Title : , Environmental Science and Technology, 47:2314-2322 (2013)
Ecological niche separation in the Polynucleobacter subclusters linked to quality of dissolved organic matter: a demonstration using a high sensitivity cultivation-based approach

Presenter : Watanabe K., Komatsu N., Kitamura T., Ishii Y., Park H-D., Miyata R., Noda N., Sekiguchi Y., Satou T., Watanabe Mirai., Yamamura S., Imai A., Hayashi S.
Title : , Environmental Microbiology, 14(9):2511-2525 (2012)
Microbial biomass and nitrogen transformations in surface soils strongly acidified by volcanic hydrogen sulfide deposition in Osorezan, Japan

Presenter : Watanabe Mirai., Yamamura S., Takamatsu T., Koshikawa-K.M., Hayashi S., Murata T., Saito-S.S., Inubushi K., Sakamoto K.
Title : , Soil Sci.Plant Nutr., 56(1):123-132 (2010)
Pollution of montane soil with Cu, Zn, As, Sb, Pb, and nitrate in Kanto, Japan.

Presenter : Takamatsu T., Watanabe Mirai., Koshikawa-K.M., Murata T., Yamamura S., Hayashi S.
Title : , Sci.Total Environ., 408(8):1932-1942 (2010)

View all

Untangling radiocesium dynamics of forest-stream ecosystems: A review of Fukushima studies in the decade after the accident

Presenter : Sakai M., Tsuji H., Ishii Y., Ozaki H., Takechi S., Jo J., Tamaoki M., Hayashi S., Gomi T.
Title : , Environmental Pollution, 288(117744): (2021)
Migration and accumulation of radioactive cesium in the upstream region of river watersheds affected by the Fukushima Daiichi Nuclear Power Plant accident: A review

Presenter : Hayashi S.
Title : , Global Environmental Research, 20(1&2):45-53 (2016)

View all

Inflow/Outflow of Radiocesium in a Dam Lake and Its Accumulation in Sediments

Presenter : Tsuji H., Kohzu A., Sato T., Hayashi S.
Title : , Impacts of Fukushima Nuclear Accident on Freshwater Environments (2021)
Catchment and Rivers

Presenter : Onda Y., Hayashi S., Nagao S., Ishii Y., Tsuji H., Taniguchi K., Nishina K., Suzuki K., Watanabe S., Prohl G., Boyer P., Laurent G.-S.
Title : , Environmental Transfer of Radionuclides in Japan following the Accident at the Fukushima Daiichi Nuclear Power Plant (2020)
Land cover classification using multi-temporal satellite images in a subtropical area

Presenter : Ishihara M., Hasegawa H., Hayashi S., Yamano H.
Title : , The biodiversity observation network in the Asia-Pacific region: Integrative observations and assessments of Asian biodiversity (2014)
Land cover classification using multi-temporal satellite images in a subtropical region

Presenter : Ishihara M., Hasegawa H., Hayashi S., Yamano H.
Title : , The biodiversity observation network in the Asia-Pacific region: Integrative observations and assessments of Asian biodiversity (2014)

View all

Development of a copper-substituted, Prussian blue-impregnated, nonwoven cartridge filter to rapidly measure radiocesium concentration in seawater

Presenter : Yasutaka T., Miyazu S., Tsuji H., Arita K., Hayashi S., Takahashi A., Kawamoto T., Aoyama M.
Title : , Journal of Nuclear Science and Technology (2016)
Expanding the Scope of Environmental Emergency Research towards Disaster-resilience and Environmental Sustainability

Presenter : Ohara T., Tajima R., Hirano Y., Iino S., Hayashi S.
Title : , Global Environmental Research, 24(2):275-278 (2021)

View all

Research Result (Presentation)

all
Research Presentation
Research Lecture

Research Presentation
Mid-long term change of particulate/dissolved 137Cs concentration in river water and the impact of Typhoon Hagibis in 2019

Presenter : Tsuji H., Ozaki H., Hayashi S.
Name of Society : European Geosciences Union General Assembly 2021 (2021)
Name of Proceedings : Abstracts
Research Presentation
Radiocesium-bearing microparticles cause a large variation in 137Cs concentration in the aquatic insect, Stenopsyche marmorata, in the Ota River, Fukushima, Japan

Presenter : Ishii Y., Miura H., Jo J., Tsuji H., Saito R., Koarai K., Hayashi S.
Name of Society : vEGU21 (2021)
Name of Proceedings : -
Research Presentation
Radiocesium contamination of freshwater aquatic ecosystem after 10 years of the Fukushima Dai-ichi nuclear power plant accident

Presenter : Ishii Y., Saito R., Jo J., Wada T., Kanasashi T., Nanba K., Funaki Y., Teramoto W., Koarai K., Hayashi S.
Name of Society : Fukushima 10 years: Forest, River, Ocean, and Food - Remaining Issues for restoration - (2021)
Name of Proceedings : Abstracts, 23
Research Presentation
Development of 137Cs ad/desorption-diffusion model considering temperature and oxygen condition and application to the 137Cs dissolution from bottom sediment in a Fukushima dam reservoir

Presenter : Tsuji H., Higashi H., Hayashi S.
Name of Society : The Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (2020)
Name of Proceedings : Abstracts
Research Presentation
Fate of sedimentary radiocesium in semi-enclosed coastal area: a numerical case study of Matsukawaura Lagoon, Japan

Presenter : Higashi H., Arita K., Hayashi S.
Name of Society : AOGS 15th annual meeting (2018)
Name of Proceedings : Abstracts, OS09-A020
Research Lecture
Behavior of dissolved radiocesium in river water in a high-dose-rate forested watershed in Fukushima Prefecture

Presenter : Tsuji H., Ito S., Hayashi S.
Name of Society : JAEA Workshop for studies of environmental dynamics of radiocesium released by NPP accident (2018)
Name of Proceedings : -
Research Presentation
Behavior of bioavailable radiocesium in dam reservoir after the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Tsuji H., Funaki H., Iijima K., Hayashi S.
Name of Society : 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 421-422
Research Presentation
Mechanisms controlling the generation of dissolved radioactive Cs in a highly contaminated mountain river system in Fukushima

Presenter : Hayashi S., Tsuji H., Ito S., Ishii Y., Nishina K.
Name of Society : 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 417-418
Research Presentation
Predicting long-term fate of radioactive cesium on forest soil: implementing different tree species

Presenter : Kuroda K., Imaizumi Y., Suzuki N., Hayashi S.
Name of Society : The 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 506-507
Current status of radioactive environmental pollution in Fukushima

Presenter : Hayashi S., Tsuji N., Ishii Y., Ohara T.
Name of Society : The 14th International Symposium on Persistent Toxic Substances (2017)
Name of Proceedings : -
Research Presentation
Radiocesium accumulation in freshwater fish and aquatic organisms in Fukushima lakes and rivers

Presenter : Ishii Y., Matsuzaki S., Nishina K., Hayashi S.
Name of Society : 4th International Conference on Radioecology & Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 423-424
Research Lecture
River database: Difficulties in Cs sampling in river water

Presenter : Hayashi S., Tsuji N., Ishii Y.
Name of Society : 2017 Interim Meeting of MODARIA II WG4, Subgroup 2 (Fukushima Parameter Datasets) Meeting (2017)
Name of Proceedings : -
Research Presentation
Temporal-spatial fate of cesium-137 in terrestrial environment around Fukushima Daiichi Nuclear Power Plant: a challenge for daily simulation

Presenter : Imaizumi Y., Kuroda K., Morino Y., Hayashi S., Suzuki N., Ohara T.
Name of Society : SETAC Europe 26th Annual Meeting (2016)
Name of Proceedings : 同予稿集, 215
Research Presentation
Long-term and large-scale prediction of air radiation dose rate in Fukushima: incorporating vertical migration of radioactive cesium

Presenter : Kuroda K., Imaizumi Y., Takagi M., Suzuki N., Hayashi S., Ohara T.
Name of Society : SETAC Europe 26th Annual Meeting (2016)
Name of Proceedings : Abstracts, MO226
Research Presentation
Evaluation of historical global Gaseous nitrogen emissions from croplands considering NH4+ and NO3- forming fertilizer species in global fertilizer dataset

Presenter : Nishina K., Ito A., Hayashi S.
Name of Society : 7th International Nitrogen Initiative Conference (2016)
Name of Proceedings : Proceedings of the 2016 International Nitrogen Initiative Conference
Research Presentation
Modeling 137Cs and C dynamics in an artificial forest ecosystem; FoRothCs

Presenter : Nishina K., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : Abstracts, 218
Research Presentation
Characteristics of particulate and dissolved radiocesiumconcentrations in stream water at storm runoff events

Presenter : Tsuji H., Nishikiori T., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : ABSTRACT BOOK, 206
Research Presentation
Selective determination of easily-available 137Cs in soil using 0.1 mol L-1 CsCl as an extraction reagent

Presenter : Koshikawa-K.M., Watanabe Mirai., Ito S., Takamatsu T., Murata T., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : ABSTRACT BOOK, 184
Research Presentation
Radiocesium balance and its behavior in dam on Uda river and Ota river in Fukushima Prefecture

Presenter : Tsuji H., Nishikiori T., Yasutaka T., Hayashi S.
Name of Society : 2015 AGU FAll Meeting (2015)
Name of Proceedings : Abstracts
Research Presentation
Development of new historical global Nitrogen fertilizer map and the evaluation of their impacts on terrestrial N cycling

Presenter : Nishina K., Ito A., Hayashi S.
Name of Society : AGU Fall meeting (2015)
Name of Proceedings : -
Research Presentation
Comparison based on concentration, d15N, and d18O of nitrate to analyze run-off nitrate discharge processes different between two mountain streams around Mt. Tsukuba, Japan

Presenter : Kohzu A., Watanabe Mirai., Hayashi S., Miura S., Imai A.
Name of Society : 3rd International Conference on Nitrification (ICoN3) (2013)
Name of Proceedings : Abstracts, 73-73
Research Presentation
Microbial community structure on tree leaves

Presenter : Watanabe K. , Watanabe Mirai., Suda W., Koshikawa-K.M., Yamamura S., Nishikiori T., Takenaka A., Tada C., Seiwa K., Hayashi S.
Name of Society : The 28th Annual Meeting of the Japanese Society of Microbial Ecology (2012)
Name of Proceedings : Abstracts, 153
Research Presentation
Metabolism in forest ecosystems from the analysis of nitrate 15N and 18O natural abundances in mountaion streams around Mt. Tsukuba, Japan

Presenter : Kohzu A., Watanabe Mirai., Hayashi S., Imai A., Nakajima Y., Osaka K., Miura S.
Name of Society : Voyages of Discovery (2012)
Name of Proceedings : Abstracts, 65
Research Presentation
Contribution of volcanic ash on base cation cycles in the Mt. Tsukuba forest ecosystem of Kanto, Japan as interpreted by strontium isotopes.

Presenter : Koshikawa-K.M., Watanabe Mirai., Shin K.C., Takamatsu T., Hayashi S., Nakano T.
Name of Society : 2012 ASLO aquatic sciences meeting (2012)
Name of Proceedings : Abstracts
Research Presentation
Ecological niche separation in the Polynucleobacter subclusters linked to quality of dissolved organic matter

Presenter : Watanabe K. , Imai A., Watanabe Mirai., Yamamura S., Hayashi S.
Name of Society : 2012 ASLO Aquatic Science Meeting (2012)
Name of Proceedings : Abstracts, 42
Research Presentation
Land cover classification using multi-temporal satellite images in a subtropical area

Presenter : Ishihara M., Hasegawa H., Yasumura S., Hayashi S., Yamano H.
Name of Society : 日本地球惑星科学連合2010年大会 (2010)
Name of Proceedings : 同予稿集, HTT030-P03

View all

Mid-long term change of particulate/dissolved 137Cs concentration in river water and the impact of Typhoon Hagibis in 2019

Presenter : Tsuji H., Ozaki H., Hayashi S.
Name of Society : European Geosciences Union General Assembly 2021 (2021)
Name of Proceedings : Abstracts
Radiocesium contamination of freshwater aquatic ecosystem after 10 years of the Fukushima Dai-ichi nuclear power plant accident

Presenter : Ishii Y., Saito R., Jo J., Wada T., Kanasashi T., Nanba K., Funaki Y., Teramoto W., Koarai K., Hayashi S.
Name of Society : Fukushima 10 years: Forest, River, Ocean, and Food - Remaining Issues for restoration - (2021)
Name of Proceedings : Abstracts, 23
Development of 137Cs ad/desorption-diffusion model considering temperature and oxygen condition and application to the 137Cs dissolution from bottom sediment in a Fukushima dam reservoir

Presenter : Tsuji H., Higashi H., Hayashi S.
Name of Society : The Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (2020)
Name of Proceedings : Abstracts
Behavior of bioavailable radiocesium in dam reservoir after the Fukushima Daiichi Nuclear Power Plant Accident

Presenter : Tsuji H., Funaki H., Iijima K., Hayashi S.
Name of Society : 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 421-422
Mechanisms controlling the generation of dissolved radioactive Cs in a highly contaminated mountain river system in Fukushima

Presenter : Hayashi S., Tsuji H., Ito S., Ishii Y., Nishina K.
Name of Society : 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 417-418
Radiocesium accumulation in freshwater fish and aquatic organisms in Fukushima lakes and rivers

Presenter : Ishii Y., Matsuzaki S., Nishina K., Hayashi S.
Name of Society : 4th International Conference on Radioecology & Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 423-424
Modeling 137Cs and C dynamics in an artificial forest ecosystem; FoRothCs

Presenter : Nishina K., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : Abstracts, 218
Characteristics of particulate and dissolved radiocesiumconcentrations in stream water at storm runoff events

Presenter : Tsuji H., Nishikiori T., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : ABSTRACT BOOK, 206
Selective determination of easily-available 137Cs in soil using 0.1 mol L-1 CsCl as an extraction reagent

Presenter : Koshikawa-K.M., Watanabe Mirai., Ito S., Takamatsu T., Murata T., Hayashi S.
Name of Society : 13th International Conference on the Biogeochemistry of Trace Elements (2015)
Name of Proceedings : ABSTRACT BOOK, 184
Radiocesium balance and its behavior in dam on Uda river and Ota river in Fukushima Prefecture

Presenter : Tsuji H., Nishikiori T., Yasutaka T., Hayashi S.
Name of Society : 2015 AGU FAll Meeting (2015)
Name of Proceedings : Abstracts
Development of new historical global Nitrogen fertilizer map and the evaluation of their impacts on terrestrial N cycling

Presenter : Nishina K., Ito A., Hayashi S.
Name of Society : AGU Fall meeting (2015)
Name of Proceedings : -
Radiocesium-bearing microparticles cause a large variation in 137Cs concentration in the aquatic insect, Stenopsyche marmorata, in the Ota River, Fukushima, Japan

Presenter : Ishii Y., Miura H., Jo J., Tsuji H., Saito R., Koarai K., Hayashi S.
Name of Society : vEGU21 (2021)
Name of Proceedings : -
Fate of sedimentary radiocesium in semi-enclosed coastal area: a numerical case study of Matsukawaura Lagoon, Japan

Presenter : Higashi H., Arita K., Hayashi S.
Name of Society : AOGS 15th annual meeting (2018)
Name of Proceedings : Abstracts, OS09-A020
Predicting long-term fate of radioactive cesium on forest soil: implementing different tree species

Presenter : Kuroda K., Imaizumi Y., Suzuki N., Hayashi S.
Name of Society : The 4th International Conference on Radioecology and Environmental Radioactivity (2017)
Name of Proceedings : Abstracts, 506-507
Temporal-spatial fate of cesium-137 in terrestrial environment around Fukushima Daiichi Nuclear Power Plant: a challenge for daily simulation

Presenter : Imaizumi Y., Kuroda K., Morino Y., Hayashi S., Suzuki N., Ohara T.
Name of Society : SETAC Europe 26th Annual Meeting (2016)
Name of Proceedings : 同予稿集, 215
Long-term and large-scale prediction of air radiation dose rate in Fukushima: incorporating vertical migration of radioactive cesium

Presenter : Kuroda K., Imaizumi Y., Takagi M., Suzuki N., Hayashi S., Ohara T.
Name of Society : SETAC Europe 26th Annual Meeting (2016)
Name of Proceedings : Abstracts, MO226
Evaluation of historical global Gaseous nitrogen emissions from croplands considering NH4+ and NO3- forming fertilizer species in global fertilizer dataset

Presenter : Nishina K., Ito A., Hayashi S.
Name of Society : 7th International Nitrogen Initiative Conference (2016)
Name of Proceedings : Proceedings of the 2016 International Nitrogen Initiative Conference
Comparison based on concentration, d15N, and d18O of nitrate to analyze run-off nitrate discharge processes different between two mountain streams around Mt. Tsukuba, Japan

Presenter : Kohzu A., Watanabe Mirai., Hayashi S., Miura S., Imai A.
Name of Society : 3rd International Conference on Nitrification (ICoN3) (2013)
Name of Proceedings : Abstracts, 73-73
Microbial community structure on tree leaves

Presenter : Watanabe K. , Watanabe Mirai., Suda W., Koshikawa-K.M., Yamamura S., Nishikiori T., Takenaka A., Tada C., Seiwa K., Hayashi S.
Name of Society : The 28th Annual Meeting of the Japanese Society of Microbial Ecology (2012)
Name of Proceedings : Abstracts, 153
Metabolism in forest ecosystems from the analysis of nitrate 15N and 18O natural abundances in mountaion streams around Mt. Tsukuba, Japan

Presenter : Kohzu A., Watanabe Mirai., Hayashi S., Imai A., Nakajima Y., Osaka K., Miura S.
Name of Society : Voyages of Discovery (2012)
Name of Proceedings : Abstracts, 65
Contribution of volcanic ash on base cation cycles in the Mt. Tsukuba forest ecosystem of Kanto, Japan as interpreted by strontium isotopes.

Presenter : Koshikawa-K.M., Watanabe Mirai., Shin K.C., Takamatsu T., Hayashi S., Nakano T.
Name of Society : 2012 ASLO aquatic sciences meeting (2012)
Name of Proceedings : Abstracts
Ecological niche separation in the Polynucleobacter subclusters linked to quality of dissolved organic matter

Presenter : Watanabe K. , Imai A., Watanabe Mirai., Yamamura S., Hayashi S.
Name of Society : 2012 ASLO Aquatic Science Meeting (2012)
Name of Proceedings : Abstracts, 42
Land cover classification using multi-temporal satellite images in a subtropical area

Presenter : Ishihara M., Hasegawa H., Yasumura S., Hayashi S., Yamano H.
Name of Society : 日本地球惑星科学連合2010年大会 (2010)
Name of Proceedings : 同予稿集, HTT030-P03

View all

Behavior of dissolved radiocesium in river water in a high-dose-rate forested watershed in Fukushima Prefecture

Presenter : Tsuji H., Ito S., Hayashi S.
Name of Society : JAEA Workshop for studies of environmental dynamics of radiocesium released by NPP accident (2018)
Name of Proceedings : -
River database: Difficulties in Cs sampling in river water

Presenter : Hayashi S., Tsuji N., Ishii Y.
Name of Society : 2017 Interim Meeting of MODARIA II WG4, Subgroup 2 (Fukushima Parameter Datasets) Meeting (2017)
Name of Proceedings : -

View all

HAYASHI Seiji

About