长江流域森林与水旱灾害的关系研究

Relationship of Forest and Flood and Drought in Yangtse River

选取长江上游宁南、平武、梓潼3个典型小流域以及四川省射洪县、宜流县等10个县区为研究区,通过模型计算与实测资料结合,分析了长江上游生态系统水源涵养能力和森林覆盖率对水流域径流的影响,以及不同区县森林对农田生态系统旱情缓解的作用。

The paper selected the upper reaches of the Yangtze River, Ningnan, Pingwu, Zitong three typical small watershed, 10 counties such as Shehong county and Yiliu county of Sichuan province as the study area. Combined with he model calculation and measured data, analyzes on the high ecological system water conservation capacity of forest cover on the water runoff, and the influence of different forest areas on farmland ecological drought relief.