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Title: 分布型流出モデルを用いた流域スケールでの水利用環境の評価
Other Titles: Water Use Environment Assessment at Basin-wide Scale using Distributed Runoff Model
Authors: 平井, 基弘  KAKEN_name
野原, 大督  kyouindb  KAKEN_id
堀, 智晴  kyouindb  KAKEN_id
Author's alias: HIRAI, Motohiro
NOHARA, Daisuke
HORI, Tomoharu
Keywords: 水資源
water resources
water use
water balance
distributed runoff model
surface water
Issue Date: 1-Jun-2010
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B
Volume: 53
Issue: B
Start page: 715
End page: 722
Abstract: 持続可能な水利用環境を考えるためには,流域スケールで,日あるいは旬といった単位で,水の移動と収支・水利用の関係を,表流水・地下水の両社を含めて,定期的に把握することが重要になってくる.そこで、本研究では時空間分布を考慮できる分布型流出評価モデルHydro-BEAM(Kojiri,2006)を用いて,地下水取水を加味した長期流出解析を行った。これにより,実際に観測することが困難である地下水を降雨量,河川水,蒸発量といった水収支から計算し,流域スケールでの地下水の時空間分布特性の把握を行うことで,流域内の表面流出・中間流出・地下水流出を統合的に捉え,地下水取水による水利用環境の評価を試みた。
Combined use of surface water and ground water is recently getting more important. Appropriate management is indispensable for effective and sustainable ground water use. In order for proper management of ground water use, basin-wide understanding of water balance in time and space is important as well as detailed water flow analysis in rather small influence zone of well pumping. From this view point, long term runoff simulation has been carried out with the combination of surface, subsurface, and ground water. Then the spatial and temporal impact of water withdrawal on ground water environment is estimated by several cases.
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