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首页> 外文期刊>International Journal of Environmental Impacts: Management, Mitigation and Recovery >Forest Management for the Flood Mitigation Function of Forests
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Forest Management for the Flood Mitigation Function of Forests

机译：森林防洪功能的森林管理

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摘要

Paired catchment experiments is the method that estimates the change of runoff due to forest change by comparisons between runoff data from two or more adjacent catchments and evaluations the change of their relative relations between two periods when forest changes in catchments. The increase in volume of maximum daily runoff due to forest degradation was estimated in three treatment catchments in Japan using paired catchment experiments. In one catchment, slope failure occurred and 20% of the catchment area became bare, after which maximum daily runoff increased by approximately 1.1-fold. In the two other catchments, slope failure did not occur, while maximum daily runoff increased by only 6-8 mm day~(-1). This increase was irrespective of the rainfall volume. Slope failure and the transition to bare land were identified as causes of the degradation of the flood mitigation function. The causes of slope failure were identified as inadequate forest management, such as clear-cutting in areas with high slope failure risk, simultaneous clear-cutting throughout a catchment, and delayed replanting after clear-cutting. Therefore, forest management strategies for the flood mitigation function of forests could include the avoidance of logging in locations with a high risk of slope failure, limits concerning the amount of logging, and prompt replanting after logging.
机译：配对流域实验的方法估计由于森林径流的变化改变的径流数据之间的比较两个或两个以上相邻集雨和评估他们的相对关系的变化两个时期当森林集雨的变化。最大程度上的每日径流的增加体积由于森林退化估计在三个治疗集雨在日本使用配对集水实验。故障发生和流域面积的20%后变得光秃秃的,最大程度上的每日径流增加了约1.1倍。没有发生其他集雨、边坡破坏,在最大程度上的每日径流增加了只有6 - 8mm ~(1)。降雨体积。过渡到裸露的土地被确定的原因减轻洪水灾害的退化函数。确认为森林管理不足,在高边坡破坏的地区砍伐风险,同时在一个砍伐排水和延迟后重植森林砍伐。的防洪减灾功能的策略森林可能包括避免登录位置高的边坡破坏的风险,关于日志的数量限制提示日志后移植。

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