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

 SCI论文目录
Substantial amounts of carbon are sequestered during dry periods in an old-growth subtropical forest in South China
------------------------------------------------------------------------------------------
出 版 社:J For Res  
发表时间:2013  
台  站: 鼎湖山森林生态系统定位研究站  
作  者:闫俊华等  
点 击 率:446753
------------------------------------------------------------------------------------------
关 键 字(英文):Gross primary productivity,Net ecosystem productivity,Old-growth forest,Respiration,Temporal pattern  
摘  要(英文):A number of continuous eddy covariance measurements and long-term biomass inventories had proved that old-growth forests are carbon sinks worldwide.The present study estimated the net ecosystem productivity (NEP) for an old-growth subtropical forest at the Dinghushan Biosphere Reserve in South China to investigate the temporal pattern of carbon sequestration, both seasonally and annually. The measured NEP over 7 years (from 2003 to 2009) showed that this forest was a net carbon sink,ranging from 230 (in 2008) to 489gCm-2 year-1 (in 2004). The greatest value of NEP was found in the driest year and the lowest value in the wettest year during the study period. Within a year, NEP during the dry season was about 81.4% higher than for the wet season. Accordingly,the dry season at seasonal scale and dry years at interannual scale are key periods for carbon sequestration in this forest.The strong seasonality of ecosystem or soil respiration (ER or SR) compared with gross primary productivity (GPP) resulted in substantial amounts of carbon being sequestered during dry seasons. A decrease of GPP and an increase of ER or SR demonstrated the lower carbon uptake in rainy years. From this study, we conclude that GPP and living biomass carbon increment are not overriding parameters controlling NEP. The variations in ER or SR driven by the rainfall scheme were the dominant factor determining the magnitude of NEP in this forest in South China.  
------------------------------------------------------------------------------------------
闫俊华-2013-Journal of Forest Research-Substantial amounts of carbon are sequestered during dry periods in an old-growth subtropical forest in South China.pdf
相关文章:
黄土高原冬小麦田土壤CH4通量对人工降水的短期响应
生态恢复对流域水沙演变趋势的影响及其程度分析——以北洛河上游为例
北洛河流域不同地貌与覆被类型区径流演变特征及控制因素
1982-2006年黄土高原地区植被覆盖度对气候变化的响应
黄土塬区不同土地利用方式下深层土壤水分变化特征
基于水分驱动的AquaCrop模型及其研究进展
相关文章分页:  共 201 页 2006 条记录 9 3[201]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 |