Estimation of water movement and nitrogen transport in a root zone with root water and solute uptake

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K18757
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Rural environmental engineering/Planning
• Research Institution: Mie University
• Principal Investigator: Sakai Masaru 三重大学, 生物資源学研究科, 講師 (70608934)
• Research Collaborator: TORIDE Nobuo ; WATANABE Kunio ; OKAHASHI Takuro ; NARUKE Chihiro ; OHNISHI Ippei ; NAKAYAMA Emiko ; ISHIDA Yuri ; NARA Kenji ; KASHIWABARA Koji ; MORI Yuna
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 数値シミュレーション / 土中水分移動 / 窒素動態 / 蒸発散 / 根の吸水・吸収

Outline of Final Research Achievements

The main objective of this study is to estimate the fate of nitrogen and water movement in a crop field using numerical simulation. Field and pot experiments with soybeans were conducted to obtain a ratio of transpiration and evapotranspiration, and a water stress response function of soybeans. A numerical simulation using the HYDRUS-1D code was conducted with these parameters, and water movement with evapotranspiration and nitrogen transport with root uptake in a root zone were evaluated.

Free Research Field

土壌物理学