物質循環状態評価に基づく新しい流域環境指標の提案

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書誌事項

タイトル別名
  • PROPOSAL OF NEW ENVIRONMENTAL INDEX TO EVALUATE THE MASS CIRCULATION PROCESS IN A WATERSHED

説明

A new index was proposed to evaluate the environmental condition in the watershed. Since this index was defined as the statistical variance of the amount of mass flow in the runoff process, it included effects of the continuity on the mass flow/circulation system and the various human activities. As the results of the investigating the definition of the index, it was found that spatial scales of non-point source such as cultivated lands and the runoff length where the natural purification was fully exhibited became important to the environmental assessment.

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