Mapping of hydraulic properties of slope based on vegetation information

从植被、地质和地形信息的关系出发，建立了反映入渗特征的入渗图。因此，它能够定量地评价土壤的水力特性，植被往往生长。植被分布的比较表明，日本扁柏栖息的坡面透水范围比日本雪松宽。定义了定量表征森林入渗环境重要持水性能的“持水指数”。因此，很明显，可以评估森林的健全性。

The authors built the infiltration map which expresses the infiltration characteristic from the relationship between vegetation, geology and topography information. As a result, it was able to evaluate quantitatively the hydraulic properties of soil which 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 expresses quantitatively 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.