[An overview on studies of soil organic matter in Chinese fir plantation].
Soil organic matter (SOM) is an important component of soil and an important carbon pool of terrestrial ecosystems, which plays an important role in soil nutrient cycling and in the balance of global carbon cycle. This paper discussed the SOM quality in Chinese fir plantation, the influence of rotation on SOM content, the change of SOM during Chinese fir growth, and the effect of human activities such as burning, site preparations and fertilization on SOM. Human activities changed soil environment including soil moisture, temperature, total porosity and nutrient contents, and hence, made the turnover of SOM slower or quicker. The content and quality of SOM in mixed forests were higher than those in pure Chinese fir plantations, and decreased with rotation. In the last part of this paper, some issues to be further researched were put forward, including the turnover model of SOM, its components, and its relationship with global carbon cycle.
Wang
Qingkui
Q
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang. wqkui@163.com
Wang
Silong
S
Feng
Zongwei
Z
Deng
Shijian
S
Gao
Hong
H
D002244:Carbon / Q000032:analysis*; D032486:Cunninghamia / Q000254:growth & development*; D017753:Ecosystem; D009930:Organic Chemicals / Q000032:analysis*; D012987:Soil / Q000032:analysis*
D009930:Organic Chemicals; D012987:Soil; D002244:Carbon