持续提高黄土高原植被水土保持功能的配套技术(I)森林保持水土的条件  

Matching Techniques for Sustaining and Improving the Soil and Water Conserving Function of Loess Plateau Vegetation-(I)Conditions for Conserving Soil and Water in Forest

作　　者：吴钦孝[1] 赵鸿雁[1] 刘向东[1] 

机构地区：[1]中国科学院/水利部水土保持研究所,陕西杨陵712100

出　　处：《农村生态环境》2002年第2期50-52,共3页Rural Eco-Environment

基　　金：国家自然科学基金项目(40171093)

摘　　要：阐述了森林保持水土的条件 ,即良好的林分结构、必要的面积比例和一定的林龄 ,揭示了成林过程中水土保持功能的动态变化 。Conditions for forest to conserve soil and water are elaborated,which include fine stand structure,appropriate proportion of its area,and proper stand age,thus revealing the dynamic changes in the function of the forest to conserve soil and water in the process of its establishment.The results of the study can,therefore, be used as a theoretical basis for developing comprehensive complex techniques for protection forests to sustain their functions to conserve soil and water.

关 键 词：黄土高原 防护林体系 水土保持 条件 

分 类 号：S75[农业科学—森林经理学] S727.2[农业科学—林学]