摘要
主要研究了辽宁东部山区天然次生林林冠截留降雨、林地土壤的渗透性能和贮水能力。结果表明 ,森林涵养水源的机制在于森林具有截留、蒸腾、增强土壤下渗能力 ,抑制地面蒸发等功能 ,对降水的吸收与流出起到很好的调节作用。林冠截留率为 17.2 %～ 17.5 %。林区内土壤的有效涵水量为 15 18～ 16 11t hm2 。
The canopy interception for rainfall, the infiltration and water-holding capacity of soil of main original secondary forest types in eastern mountain areas of Liaoning province were studied. The results showed that the mechanism of water conservation forest was laid to interception, transpiration, increasing infiltration capacity of soil and reducing ground evaporation. The canopy interception rates of rainfall of forests were 17.2%～17.5%. Effective water holding capacity of soil was 1 500～1 600t/hm 2.
出处
《辽宁林业科技》
2002年第5期12-13,16,共3页
Liaoning Forestry Science and Technology
关键词
天然次生林
辽宁东部山区
涵养水源功能
original secondary forest, water conservation, mountainous areas in eastern Liaoning province
