１９７４年～２００３年における神田川・石神井川流域の河川改修・下水道整備と浸水域の変遷

DOI Web Site 被引用文献1件 参考文献33件

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タイトル別名
  • Change in Urban Flooding Patterns and Development of Sewer Systems and River Improvement Works between 1974 and 2003 in the Kanda and Shakujii River Basins, Tokyo
  • 1974ネン 2003ネン ニ オケル カンダガワ シャクジイガワ リュウイキ ノ カセン カイシュウ ゲスイドウ セイビ ト シンスイイキ ノ ヘンセン

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説明

This study examined the relationships between the change in flooding patterns and floodcontrol measures which were carried out between 1974 and 2003 in the Kanda and the Shakujii river basins in Tokyo. The measures analyzed include the development of sewer systems, the river improvement works, and the construction of underground floodway and reservoirs. Number and size of flooded areas had decreased on the present channel's lowlands in the both river basins because flood-control measures were carried out mainly on the present channel's lowland. Flooding continued to occur in the areas along culvert rivers and on uplands, where the measures started more slowly. The difference in the timing of the flood decrease on the present channel's lowlands was explained by different development of flood control ; earlier urbanized Kanda basin had little space for conducting the measures. The river re-improvement in an tributary of the Kanda River caused unexpected flooding in the lower reach.

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