Hydro-BEAMをベースにした流域環境評価モデルの構築

本年度はHydro-BEAM に付加するモジュール及び評価の側面についていくつか検討している。主なものは，水量・水質・生態環境を組み入れた流域水環境モデル，侵食・堆積環境と魚類の生息場，ダム下流流程と浮遊有機物動態，地表面条件とそれが積雲・降雨に及ぼす影響，地球温暖化と流域水資源環境への影響評価，である。
In this fiscal year (FY2005), some modules to be added to Hydro-BEAM and some aspects of evaluation have been discussed. Following items are the main topics and included in this report. 1) Regional water circulation processes with water quantity, quality, and ecosystem 2) Difference in habitat preference of Rhinogobius flumineus among erosional and depositional reaches 3) Variation in drift distance of suspended POM in relation to flow regimes and channel geomorphology 4) Effect of land surface condition on convective precipitation over the mountainous region in Lake Biwa during the summer season 5) Impact assessment on water resources environment in river basin due to global warming