Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou:Ⅱ.Dynamics and Decomposition Characteristics of Litter

编号 zgly0000099239

文献类型 期刊论文

文献题名 Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou:Ⅱ.Dynamics and Decomposition Characteristics of Litter

学科分类 220.1060;森林生态学

母体文献 PEDOSPHERE;土壤圈: 英文版 

年卷期 1993,3(3)

页码 231-238

年份 1993 

分类号 S718.554.2 

关键词 常绿阔叶林  森林生态系统  物质循环  植物残体  分解 

文摘内容 Through the long-term plot study on the litter and its decomposition in the evergreen broad-leaved forest ecosystem in Hangzhou for more than two years,it was resulted that the annual litter production was 5.85 t ha^-1,most of which was the fallen leave (79.5 percent) and the withered branches and fruits were far less (7.1 and 13.4 percents respectively).The dynamics of the fallen litter was shown as a curve of two-peak pattern which appeared in April and September each year.The half-life of the litter was 1.59 years.The decay rate of the litter attenuted as an exponential function.The annual amount of the nutrient returned to the ground through the litter was as large as 223.69kg ha^-1.The total current amount of the litter on the ground was 7.47t ha^-1.The decay rate in the first half of a year was 45.18 percent.This ecosystem remained in the stage of litter increasing with time。