The features of soil aggregation and its eco—environmental effects under different subalpine forests on the east slope of Gongga Mountain,China

编号 zgly0000304132

文献类型 期刊论文

文献题名 The features of soil aggregation and its eco—environmental effects under different subalpine forests on the east slope of Gongga Mountain,China

学科分类 220.1040;森林土壤学

作者 ZHANGBao-hua  HEYu-rong  ZHOUHong-yi  CHENGGen-wei 

作者单位 InstituteofMountainHazardsandEnvironment 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2003,14(1)

页码 80-82

年份 2003 

分类号 S714.2 

关键词 土壤聚合体  亚高山带森林  贡嘎山  环境影响 

文摘内容 Structural properties of forest soils have important hydro-ecological function and can influence the soil water-physical characters and soil erosion.The experimental soil samples were obtained in surface horizon (0-10cm) from different subalpine forest types on east slope of Gongga Mountain in the upriver area of Yangtze River China in May 2002.The soil bulk density,porosity,stable infiltration rate,aggregate distribution and particle-size distribution were analyzed by the routine methods in room,and the features and effects on eco-environment of soil aggregation were studied.The results showed that the structure of soil under mixed mature forest is in the best condition and can clearly enhance the eco-environmental function of soil,and the soil structure under the clear-cutting forest is the worst,the others are ranked between them.The study results can offer a basic guidance for the eco-environmental construction in the upper reaches of Yangtze River。