太行山主要植被枯枝落叶层的水文作用

The Hydrologic Action of Litter on Main Vegetation in Taihangshan Mountain

采用实地测定和人工模拟蒸渗器（Ｌｙｓｉｍｅｔｅｒ）相结合的方法，对太行山主要植被枯枝落叶层的水文作用进行了研究。结果表明：在森林涵养水源过程中，枯枝落叶层不仅可以调蓄２～５ｍｍ的降雨，更重要的是可使土壤增加下渗２１．３％～５０．３％，减少地表蒸发２２２．０％，减少地表径流含沙量１１．５ｋｇ／ｍ３。

This paper dealt with the hydrologic action of litter on main vegetation in Taihangshan Mountain.The results showed:in the process of water conservation by the forest,the litter can regulate and hold rainfall amount 2～5 mm,increase infiltration amount 21.3%～50.3%,decrease soil surface evaporation 222.0%,and decrease runoff silt content in the earth′s surface 11.5 kg/m 3.