2020 - 2023 Is strengthening of snowmelt delay function through forest management an adaptation measure against snowfall reduction due to global warming?
2016 - 2020 Hydrological study on performance evaluation and efficiency improvement of spate irrigation in arid regions of Africa
2015 - 2019 Development of upstream inclined weir fishways for fishes around paddy fields
2015 - 2019 Effects of Bamboo forest expansion and climate change on flood and drought runoff in forested catchments
2016 - 2019 Development of long-term monitoring method of agricultural land use dynamics in Japan using multiple satellite seonsor images
2016 - 2019 Elucidation of nitrogen dynamics in a temperate forest watershed with heavy snowfall using isotopic compositions of nitrate and water
2015 - 2018 Development of new snow observation methods in severe climatic and topographic conditions: elucidation of snow melting processes
2012 - 2016 Reassembly of dyke-system in high flood rice area in the Mekong delta to cope with climate change
2013 - 2015 Effects of saturated irrigation on soil environment and rice quality
2010 - 2012 Hydro-meteorological analysis in the wetlands and lakes of the Volta River basin in West Africa
2007 - 2009 Analysis of the Hydrological Environment in Agricultural Regions Using the Method of Environment Traceability.
2006 - 2007 流域水循環モデルによる水資源リスク評価と流域管理に関する研究
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Papers (112):
Yoichi Fujihara, Kento Otani, Keiji Takase, Shunsuke Chono, Eiji Ichion. Impacts of High-Concentration Turbid Water on the Groundwater Environment of the Tedori River Alluvial Fan in Japan. Water (Switzerland). 2024. 16. 10
小川弘司, 藤原洋一. Long-term Variation Analysis of the Senjagaike Perennial Snow Patch on Mt. Hakusan. 水文・水資源学会誌. 2024. 37. 2
Takashi Nakamura, Hideto Fujii, Toru Watanabe, Sarann Ly, Sambo Lun, Yoichi Fujihara, Keisuke Hoshikawa, Kazuhiko Miyanaga, Chihiro Yoshimura. Waterborne Disease Risk Assessment and Mapping for a Floating Village by Combining 3D Hydraulic Simulation and Quantitative Microbial Risk Assessment. Water. 2023. 15. 23. 4199-4199
Tadashi Tsukaguchi, Teruki Miyamae, Ami Morikawa, Ryota Yonezawa, Daiki Sekine, Yoichi Fujihara. Estimation of grain quality of rice (Oryza sativa L.) by UAV-acquired vegetation index and climate factors. Plant Production Science. 2023. 26. 3. 297-308
Hideto Fujii, Takashi Nakamura, Lun Sambo, Ly Sarann, Keisuke Hoshikawa, Yoichi Fujihara. Discharge Measurement and Hydraulic Characteristics in the Tonle Sap River. Water and Life in Tonle Sap Lake. 2022. 111-120
JAPANESE ASSOCIATION OF GROUNDWATER HYDROLOGY
, THE JAPANESE SOCIETY OF SNOW AND ICE
, THE SOCIETY OF AGRICULTURAL METEOROLOGY OF JAPAN
, JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES
, THE JAPANESE SOCIETY OF IRRIGATION, DRAINAGE AND RURAL ENGINEERING