云南省地质灾害与水系关系初步分析

Preliminary Analysis on Relationships between Geo-hazards and River Systems of Yunnan Province

云南省地处六大流域上游或源头区,地质灾害发育,地质灾害与水系关系比较密切。通过河流密度-信息量法和主干河流-缓冲区法分析了云南省地质灾害与水系之间的关系,分析结果表明:河流密度越高,灾害点越发育;六大流域主干河流中,怒江、元江、金沙江对滑坡影响较大,怒江、金沙江对崩塌影响较大,大盈江、怒江对泥石流影响较大。分析结果对于研究云南省地质灾害发育规律提供了新的思路,为云南省地质灾害综合防治体系建设提供参考。

Yunnan Province is located in the upstream or headwater region of the six basins. Geo-hazards are developing well and river system is closely related to Geo-hazards. We gives a general analysis of relationships be- tween geo-hazards and river systems by river density-information method and main river-buffer analysis, the analysis shows that： the higher river density, the more geo-hazards, Nu river, Yuan river and Jinsha river have strong im- pact on landslide, Nu river and Jinsha river have strong impact on collapse, Daying river and Nu river have strong impact on debris flow. It provides a new way in research on development rules of geo-hazards and provides refer- ence for the construction of comprehensive nrevention and control system of geo-hazards in Yunnan Province.