湖南丘陵风化花岗岩区水土保持林的水文效应研究

本文以湖南丘陵风化花岗岩区水土保持林作为研究对象，分析了水保林的水文效应，并根据灰色系统原理，建立了水保林的蓄水量和蓄水效率的灰色数学模型；同时还阐述了水保林提高了林内空气湿度、削减延迟洪峰、减少河流含沙率和降低河床的巨大作用。

Studies on the Hydrological Effect of the Forest of Soil and Water Conservation in the Hills Area of Weathered Granite in Hunan Province

Taking the forest of soil and water conservation as an object of study the hydrological effect was analysed in the hills area of weathered granite in Hunan province.The grey models for water storage amount and water storage efficiency were set up by means of grey system theory,It is suggested that the forest of soil and water conservation takes a obvious role in increasing air humidity in the forest land,cutting down and postponing the flood peak,reducing the silt concentration of river water, and lowering the river bed