首 页 网络介绍 CERN新闻 规章制度 在研项目 论文与出版物 学术动态 生态知识 人员招聘 人员组成 English

    论文与出版物
   SCI论文目录
   SCI论文全文(PDF文件)
   核心期刊论文目录
   出版物目录
   研究报告目录

 研究报告目录
Estimates of soil respiration and net primary production of three forests at different succession stages in South China
------------------------------------------------------------------------------------------
出 版 社:Global Change Biology, doi: 10.1111/j.1365-2486.2006.01141.x  
发表时间:2006  
台  站: 鼎湖山森林生态系统定位研究站  
作  者:Yan Junhua,Wang Yingping,Zhou Guoyi,Zhang Deqiang  
点 击 率:338950
------------------------------------------------------------------------------------------
关 键 字(英文):inversion, litter fall, net primary production, soil respiration, subtropical forest  
摘  要(英文):Soil respiration (heterotropic and autotropic respiration, Rg) and aboveground litter fall carbon were measured at three forests at different succession (early, middle and advanced) stages in Dinghushan Biosphere Reserve, Southern China. It was found that the soil respiration increases exponentially with soil temperature at 5 cm depth (Ts) according to the relation Rg5a exp(bTs), and the more advanced forest community during succession has a higher value of a because of higher litter carbon input than the forests at early or middle succession stages. It was also found that the monthly soil respiration is linearly correlated with the aboveground litter carbon input of the previous month. Using measurements of aboveground litter and soil respiration, the net primary productions (NPPs) of three forests were estimated using nonlinear inversion. They are 475, 678 and 1148 gCm-2 yr-1 for the Masson pine forest (MPF), coniferous and broadleaf mixed forest (MF) and subtropical monsoon evergreen broad-leaf forest (MEBF),respectively, in year 2003/2004, of which 54%, 37% and 62% are belowground NPP for those three respective forests if no change in live plant biomass is assumed. After taking account of the decrease in live plant biomass, we estimated the NPP of the subtropical MEBF is 970 gCm-2 yr-1 in year 2003/2004. Total amount of carbon allocated below ground for plant roots is 388 gCm-2 yr-1 for the MPF, 504 gCm-2 yr-1 for the coniferous and broad-leaf MF and 1254 gCm-2 yr-1 for the subtropical MEBF in 2003/2004. Our results support the hypothesis that the amount of carbon allocation belowground increases during forest succession.  
------------------------------------------------------------------------------------------
Estimates of soil respiration and net primary production of three forests at different succession stages in South China.pdf
相关文章:
三北防护林生态效益评价要素分析Indicators to assess the ecological effect of the 3-north Windbread system
阔叶红松林倒木贮量的变化规律
红松(Pinus koraiensis)针叶的凋落及其分解速研究Study on decomposition rate and fall of Pinus koraiensis needle-leaf
溪流粗木质残体的生态学研究进展
CROPWAT模型在调亏灌溉研究中的应用
大豆重迎茬减产的原因及农艺对策研究――重迎茬大豆水分问题
不同土壤水分条件对大豆产量的影响
黑土区水田化肥氮去向的研究
海伦地区黑土区农田土壤水分动态平衡特征研究
大豆根部主要病虫害生态控制研究初报
相关文章分页:  共 201 页 2006 条记录 9 3[1][2][3][4][5][6][7][8][9][10]4 :

[关闭窗口]
中国生态系统研究网络 版权所有
| 网络介绍 | 联系方式 | 网站地图 |