大青山中高山地带阴坡水土保持效益的研究

The research on the forest benefit of water and soil conservation in the shade slope of mid-high mountion zone of Da Qing Shan

本文对大青山高土地带阴坡三种不同水土保持林与农地、撩荒地比较，将枯落物持水性、土壤含水量及土壤性质、分散度、导水率进行了分析，阐明了大青山中高山地带阴坡三种不同林分有极强的吸水性、可拦蓄大量的径流；林地土壤含水量高、结构良好、渗透降水能力强，土体难以破坏。可有效地防治山地水土流失的发生。

Compared three kinds of water and soil conservation forest with farmland and wasteland and analysed holding water character of withered tree、soil containing water amount、soil property、dispersive degree and water conductivity,the article elaborated that there were obvious advantages in three kinds of water and soil conservation forest in the shade slope of mid-high mountion zone of Da Qing Shan than others,such as:strong water absorptivity、runoff reserve、high soil containing water amount of forestland、well structure、high rainwater permeating capactiy and it is effective to prevent and control the water and soil conservation in mountion land.