日本地球惑星科学連合2023年大会

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[E] オンラインポスター発表

セッション記号 A (大気水圏科学) » A-HW 水文・陸水・地下水学・水環境

[A-HW18] 流域圏生態系における物質輸送と循環:源流から沿岸海域まで

2023年5月25日(木) 10:45 〜 12:15 オンラインポスターZoom会場 (5) (オンラインポスター)

コンビーナ:細野 高啓(熊本大学大学院先端科学研究部)、伴 修平(公立大学法人 滋賀県立大学)、齋藤 光代(広島大学 大学院先進理工系科学研究科 )、Adina Paytan(University of California Santa Cruz)


現地ポスター発表開催日時 (2023/5/26 17:15-18:45)

10:45 〜 12:15

[AHW18-P10] Water and Nutrients Budget in Agricultural and Urban Catchment

*Sai Tun Aung Si1Shin-ichi Onodera1Kunyang Wang1Mitsuyo Saito1Sharon Bih Kimbi1 (1.Graduate School of Advanced Science and Engineering, Hiroshima University)

キーワード:Water, Saijo River, Agriculture

Water is an essential part of life for every human being around the world. Climate change can affect the water demand and the water quality in the urbanized agricultural catchment. So, we will estimate the future trend of the water quality and water budget of the study area. The study area is Saijo River catchment which is only 2.96 km2 and agricultural lands are gradually decreasing in this area. Data loggers are placed in the Saijo River since June 2019 and a barometric pressure data logger is placed near the Saijo River where has temperature change in range is minimum to know the water level. The discharge is calculated by the water levels obtained from the data loggers. The rainfall data were obtained from NARO (National Agriculture and Food Research Organization) and calculated the water budget by differencing the rainfall and discharge. According to the currently available data, the evapotranspiration rate is around 60 % of the total rainfall. Although there was no significant change in rainfall, the discharge rate was found to be increasing year by year because of urbanization.


This study is supported by APN Project (CRRP2019-09MY-Onodera).