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The impacts of permafrost change on NPP and implications: A case of the source regions of Yangtze and Yellow Rivers
Fang Yiping1; Qin Dahe2; Ding Yongjian2; Yang Jianping2; Xu Keyan1,3
Corresponding AuthorFang, YP(方一平)
2011
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume8Issue:3Pages:437-447
SubtypeArticle
AbstractThis paper studies the relationship between net primary productivity (NPP) and annual average air temperature (GT) at 0cm above ground in permafrost regions by using revised Chikugo NPP model, cubic spline interpolating functions, and nonlinear regression methods. The source regions of the Yangtze and Yellow Rivers were selected as the research areas. Results illustrate that: (1) There is significant non-linear relationship between NPP and GT in various typical years; (2) The maximum value of NPP is 6.17, 5.87, 7.73, and 5.41 DM center dot t center dot hm(-2)center dot a(-1) respectively, and the corresponding GT is 7.1, 10.0, 21.2, and 8.9A degrees C respectively in 1980, 1990, 2000 and 2007; (3) In 1980, the sensitivity of NPP to GT is higher than in 1990, 2000 and 2007. This tendency shows that the NPP presents change from fluctuation to an adaptation process over time; (4) During 1980 similar to 2007, the accumulated NPP was reduced to 8.05, and the corresponding carrying capacity of theoretical livestock reduced by 11%; (5) The shape of the demonstration region of ecological compensation system, livelihood support system, and science appraisal system in the source regions of Yangtze and Yellow Rivers are an important research for increasing the adaptation capacity and balancing protection and development.
KeywordThe Source Regions Of Yangtze And Yellow Rivers Permafrost Ground Temperature (Gt) Net Primary Productivity (Npp) Policy Adaptation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-011-1004-3
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordQINGHAI-TIBET PLATEAU ; BOREAL FOREST ; CLIMATE ; REGIME ; ALASKA ; LAYER
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000291042900007
Funding OrganizationNational Basic Research Program of China (973 Program)(2007CB411507 ; 2010CB951704)
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5508
Collection山区发展研究中心
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Fang Yiping,Qin Dahe,Ding Yongjian,et al. The impacts of permafrost change on NPP and implications: A case of the source regions of Yangtze and Yellow Rivers[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(3):437-447.
APA Fang Yiping,Qin Dahe,Ding Yongjian,Yang Jianping,&Xu Keyan.(2011).The impacts of permafrost change on NPP and implications: A case of the source regions of Yangtze and Yellow Rivers.JOURNAL OF MOUNTAIN SCIENCE,8(3),437-447.
MLA Fang Yiping,et al."The impacts of permafrost change on NPP and implications: A case of the source regions of Yangtze and Yellow Rivers".JOURNAL OF MOUNTAIN SCIENCE 8.3(2011):437-447.
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