泥石流防治的流域自然地理环境优化效益指标体系研究

An Approach to the Optimization Benefit Assessment and System Targets of Valley Physical Geographic Environment of Debris Flow Control

该文给出了泥石流防治的流域自然地理环境优化效益的定义，阐述了流域自然地理环境优化的过程，并分析了流域自然地理环境优化效益与其它有关泥石流防治效益之间的关系，流域自然地理环境优化效益包括减灾效益、减洪效益和减沙效益三大部分，每种效益由若干指标构成。文章给出了流域自然地理环境优化的指标体系，并对１０种优化效益指标作了初步探讨。

This paper has given the definition of optimization benefit of valley physical geographicenvironment of debris flow control,and expounded the optimization course of valey physical geo-graphic environment,and analysed the relation between the optimization benefit of valley physicalgeographic environment and other benefit of debris flow control.The optimization benefit of valleyphysical geographic environment consists of the abate disaster benefit,the abate floods benefit andthe abate grit benefit.Any benefits consists of the how many targets. Then the paper has given thesystem of targets for optimization benefit of valley physical geographic environment,and ap-proached to the 10 targets of optimization benefit.