A Study on Slope Failure and Vegetation Management of Tamagawa-Jyousui

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  • 東京都玉川上水の水路法面崩落と樹木管理に関する研究

Abstract

Tamagawa-Jyousui, as a series of growing basis of familiar green in the urban area, also as a precious historical heritage, has been concerned that the slope failure cause the declining of the function as the water way and cultural resource. In this study, we have clarified that there are three fundamental factors of slope failure; they are "frost column", "precipitation", "wind", "daylight" and "landform". We also identified that the trees on the slope or those close to it, proceeding the behavior. Accordingly, as the tree management policy to keep these slopes, we show the tree cutting priority in view of tree vitality. We found the problem that in managing practically, comprehensive decision should be made with the residents of the local community.

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