IGSNRR OpenIR  > 历年回溯文献
Scaling up ecosystem productivity from patch to landscape: a case study of Changbai Mountain Nature Reserve, China
Zhang N.; Yu Z. L.; Yu G. R.; Wu J. G.
Source PublicationLandscape Ecology
KeywordScaling Extrapolation Ecosystem Modeling Biogeochemical Cycles Landscape Pattern Net Primary Productivity Changbai Mountain Nature Reserve Net Primary Productivity Modeling Approach General-model Simulation Grassland Dynamics Ecology Balance
AbstractScaling up ecosystem processes from plots to landscapes is essential for understanding landscape structure and functioning as well as for assessing ecological impacts of land use and climate change. This study illustrates an upscaling approach to studying the spatiotemporal pattern of ecosystem processes in the Changbai Mountain Nature Reserve in northeastern China by integrating simulation modeling, GIS, remote sensing data, and field-based observations. The ecosystem model incorporated processes of energy transfer, plant physiology, carbon dynamics, and water cycling. Using a direct extrapolation scheme, the patch-level ecosystem model was scaled up to quantify the landscape-level pattern of primary productivity and the carbon source-sink relationship. The simulated net primary productivity (NPP) for the entire landscape, consisting of several ecosystem types, was 0.680 kg C m(-2) yr(-1). The most widely distributed ecosystem type in this region was the mixed broad-leaved and Korean pine (Pinus koraiensis) forest, which had the highest NPP (1.084 kg C m(-2) yr(-1)). The total annual NPP for all ecosystem types combined was estimated to be 1.332 Mt C yr(-1). These results suggest that the Changbai Mountain landscape as a whole was a carbon sink, with a net carbon sequestration rate of about 0.884 Mt C yr(-1) for the study period. The simulated NPP agreed reasonably well with available field measurements at a number of locations within the study landscape. Our study provides new insight into the relationship between landscape pattern and ecosystem processes, and useful information for improving management practices in the Changbai Mountain Nature Reserve, which is one of the most important forested landscapes in China. Several research needs are discussed to further refine the modeling approach and reduce prediction uncertainties.
Indexed BySCI
Document TypeSCI/SSCI论文
Recommended Citation
GB/T 7714
Zhang N.,Yu Z. L.,Yu G. R.,et al. Scaling up ecosystem productivity from patch to landscape: a case study of Changbai Mountain Nature Reserve, China. 2007.
Files in This Item: Download All
File Name/Size DocType Version Access License
Zhang-2007-Scaling u(456KB) 开放获取LicenseView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang N.]'s Articles
[Yu Z. L.]'s Articles
[Yu G. R.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang N.]'s Articles
[Yu Z. L.]'s Articles
[Yu G. R.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang N.]'s Articles
[Yu Z. L.]'s Articles
[Yu G. R.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Zhang-2007-Scaling up ecosystem.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.