The Change of the Water Demand and Delivery Water Requirement for a Large-sized Paddy Irrigation under Urbanization

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  • Suozhu
    The United Graduate School of Agricultural Science, Gifu University
  • Senge Masateru
    Ltd., Union, Gifu University
  • Noda Keigo
    Faculty of Applied Biological Science, Gifu University
  • Azechi Issaku
    Division of Hydraulic Engineering, Institute for Rural Engineering, NARO
  • Kotake Shouta
    Faculty of Applied Biological Science, Gifu University

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Other Title
  • 都市化に伴う水田面積の減少が広域水田用水量と配水管理用水量に与える影響
  • トシカ ニ トモナウ スイデン メンセキ ノ ゲンショウ ガ コウイキ スイデン ヨウスイリョウ ト ハイスイ カンリ ヨウスイリョウ ニ アタエル エイキョウ

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Abstract

<p>  This study is to examine the effect of a paddy field decrease on the diversion requirement for paddy area by modeling its water demand structure using the CB method in a paddy field area where urbanization has progressed in recent years. As a result, it was shown that where in case of the irrigation system with a dual-use canal, it is necessary to add the decrease of return flow from the paddy field due to the paddy area decrease to the diversion requirement as delivery water requirement.</p>

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