Reproducing Shrinking of the Aral Sea by Analyzing Water and Heat Balances Considering the Impacts of Expanding Irrigated Area

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Other Title
  • 集水域の灌漑地拡大の影響を考慮した水・熱収支解析によるアラル海の経年的縮小の再現
  • シンポジウム論文 集水域の灌漑地拡大の影響を考慮した水･熱収支解析によるアラル海の経年的縮小の再現
  • シンポジウム ロンブン シュウスイイキ ノ カンガイチ カクダイ ノ エイキョウ オ コウリョ シタ ミズ ・ ネツ シュウシ カイセキ ニ ヨル アラルカイ ノ ケイネンテキ シュクショウ ノ サイゲン

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Abstract

As the result of huge-scale irrigation project, serious water scarcity has occurred in the Aral Sea Basin. Millions people are suffering especially in the downstream. The Aral Sea has shrunk to 10％ from 1960’s level. Sustainable irrigation project is required and this project has to be based on information about quantity of water resource and water demand in irrigated farm. These information are necessary as basic and scientific information for sustainable development.<BR>In this study, historical change of water and heat balance in the Aral Sea Basin is analyzed from 1961 to 2000 by land surface model SiBUC, which can analyze water demand for irrigation in physical way. Since expanding irrigated area and desiccation of the Aral Sea were considered in the water balance analysis, drastic increase of water demand in irrigated farm can be analyzed. Finally, decreasing water inflow to the Aral Sea and historical change of the area are accurately reproduced.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 26 (2), 180-190, 2013

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

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