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:446755
------------------------------------------------------------------------------------------
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:
Scaling of root length density of maize in the field profile.
An attempt to establish a synthetic model of photosynthesis-transpiration based on stomatal behavior for maize and soybean plants grown in field.
Yellow sticky traps for monitoring males and two parasitoids of Oracella acuta (Lobdell) (Homoptera: Pseudococcidae).
Conservation and Sustainable Use of Water Resources in China
On the separate retrieval of soil and vegetation temperatures from ATSR data
Biomass and productivity of natural vegetation on the Tibet and plateau: estimated form combination of field data, county-specific inventories and modeling
The potential information in the temperature difference between shadow and sunlit of surfaces and a new way of retrieving the soil moisture
Predicating unsaturated hydraulic conductivity of soil based on some basic properties
Yellow sticky traps for monitoring males and two parasitoids of Oracella acuta (Lobdell) (Homoptera: Pseudococcidae)
Impacts of Eucalyptus (Eucalyptus exserta) Plantation on Soil Erosion in Guangdong Province, Southern China --A Kinetic Energy Approach.
相关文章分页:  共 201 页 2006 条记录 9 3[11][12][13][14][15][16][17][18][19][20]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 |