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北亚热带6种森林凋落物碳素归还特征(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年06期
Page:
43-46
Column:
研究论文
publishdate:
2010-11-30

Article Info:/Info

Title:
Carbon dynamics of litterfall under six forest stands in subtropical China
Author(s):
LI Zhengcai1 YANG Xiaosheng1 ZHOU Benzhi1 CAI Xiaojun2 SUN Jiaojiao2 Geriletu1 SUN Xuezhong2 FU Maoyi1
1.Research Institute of Subtropical Forestry, CAF, Fuyang 311400, China; 2.Fuyang Forestry Bureau of Zhejiang Province, Fuyang 311400, China
Keywords:
forest litterfall litter input of organic carbon landuse types
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2010.06.010
Document Code:
A
Abstract:
Based on the field study of forest littlefall collection, this paper dealt with carbon dynamics of forest litter under six landuse types in the subtropical China in 2004. The results showed that: (1) Carbon amount of litterfall of the naturally secondly stands and masson pines formed doublepeak in Mar.and Jun., Feb.and Apr., respectively, while Chinese fir stand, Ph.praecox and moso stand formed singlepeak in Dec., Mar., May and Jun. respectively. (2) Carbon amount of littlefall of the naturally secondly stands was 3.22 t/hm2, the following were Chinese fir stand and masson pines, the extensively and intensively managed moso stand were almost the same, while the least was Ph.praecox stands, which was only 1.39 t/hm2. (3) Components of forest litterfall carbon were mainly composed of leaf, which were among 58.00 % and 73.65 %, while branch, fruit and others occupied less proportion of forest litterfall. (4) The naturally secondly stands had the best ability of improving the soil quality by selffertilization, which meant their ecological function had advantages over other landuse types.

References

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Last Update: 2010-12-27