摘要
通过对历年来全国森林资源清查数据和水土流失数据的对比分析,得出森林植被具有抑制水土流失作用的结论。并通过土壤水特征曲线深入探究土壤持水、失水的过程,从能量角度解释植被具有提高土壤持水性能、抑制地表径流、从而防止水土流失的原因。
Through comparison and analysis of national forest resource inventory data and soil erosion data of China over the years,the conclusion was got that forest vegetation has the function of preventing soil erosion.The water-holding and dehydrating process of soil was further observed with soil water characteristic curve.Then the reasons of the vegetation can improve water-holding performance of soil,inhibiting surface runoff and preventing soil erosion were put forward from the perspective of energy.
出处
《森林工程》
2011年第5期8-12,共5页
Forest Engineering
基金
林业公益性行业科研专项(201004043)
黑龙江省重大攻关项目(GA09B201-03)
关键词
森林植被
能量原理
水土流失
forest vegetation
energy theory
soil erosion
