植生および地質・地形からみた森林の浸透環境 : 森の健康診断から浸透マップの構築(<特集>地盤工学と農林学・生態学/第4回日中地盤工学シンポジウム)

概要

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The authors built the infiltration map which expresses the infiltration characteristics from the relationship between vegetation, geology and topography information. As a result, it was able to evaluate quantitatively the hydraulic properties of soil that vegetation tends to grow. The comparison of vegetation distribution showed that the permeable range of the slope which a Japanese cypress inhabits was wider than a Japanese cedar. Moreover, "Water Retentivity Index", which quantitatively expresses the important water holding property of the infiltration environment of a forest, was defined. Thereby, it became clear that it is possible to evaluate the soundness of a forest.
2010-09-01