IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.7
Sensitivity analysis of the DeNitrification and Decomposition model for simulating regional carbon budget at the wetland-grassland area on the Zoige Plateau, china
Wang Ji-yan1,2; Li Ai-nong1; Jin Hua-an1
Corresponding AuthorLI Ainong
2016
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume13Issue:7Pages:1200-1216
SubtypeArticle
AbstractAlthough mathematical models (e.g., DeNitrification and DeComposition (DNDC) provide a powerful tool to study regional carbon budget, it is still difficult to obtain accurate simulation results because there exists large uncertainties in modeling regional carbon budget. Through the investigation on the sensitivity of model output parameters to the input parameters, sensitivity analysis (SA) has been proved to be able to identify the key sources of uncertainties and be helpful to reduce the model uncertainties. However, some input parameters with discrete values (e.g., land use type and soil type) and the regional effect of the sensitive parameters were rarely examined in SA. In this paper, taking the Zoige Plateau as a case area, we combined the one-factor-at-a-time (OAT) with Extended Fourier Amplitude Sensitivity Test (EFAST) to conduct a SA of DNDC for simulating the regional carbon budget, including Gross Primary Productivity (GPP), Net Primary Productivity (NPP), Net Ecosystem Productivity (NEP), autotrophic respiration (Ra), soil microbial heterotrophic respiration (Rh) and ecosystem respiration (Re). The result showed that the combination of OAT and EFAST could test the contribution of the input parameters with discrete values to the output parameters. In DNDC model, land use type and soil type had a significant impact on the regional carbon budget of the Zoige Plateau, and daily temperature was also confirmed to be one of the most important parameters for carbon budget. For the other input parameters, with the change of land use type or soil type at regional scale, the sensitive parameters of carbon budget would vary accordingly. The SA results would provide scientific evidence to optimize DNDC model and they suggested that we should pay attention to the spatial/temporal effect of SA and try to use the appropriate data in simulation of the regional carbon budget.
KeywordSensitivity Analysis Oat Efast Dndc Model Carbon Budget Zoige Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-015-3520-z
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordGREENHOUSE-GAS EMISSIONS ; PROCESS-ORIENTED MODEL ; NET PRIMARY PRODUCTION ; ECOSYSTEM RESPIRATION ; HYDROLOGICAL MODEL ; NO EMISSIONS ; FOREST SOILS ; PARAMETERS ; UNCERTAINTY ; PEATLAND
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000379268900006
Funding OrganizationNational Natural Science Foundation of China(41271433 ; International Cooperation Key Project of CAS(GJHZ201320) ; International Cooperation Partner Program of Innovative Team, CAS(KZZD-EW-TZ-06) ; STS-Network Plan, CAS(KFJ-EW-STS-020-02) ; Strategic Leader Science and Technology project(XDA05050105) ; "Hundred Talents" Project of Chinese Academy of Sciences ; 41571373 ; 41301385)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17259
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.7
数字山地与遥感应用中心
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, 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
Wang Ji-yan,Li Ai-nong,Jin Hua-an. Sensitivity analysis of the DeNitrification and Decomposition model for simulating regional carbon budget at the wetland-grassland area on the Zoige Plateau, china[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(7):1200-1216.
APA Wang Ji-yan,Li Ai-nong,&Jin Hua-an.(2016).Sensitivity analysis of the DeNitrification and Decomposition model for simulating regional carbon budget at the wetland-grassland area on the Zoige Plateau, china.JOURNAL OF MOUNTAIN SCIENCE,13(7),1200-1216.
MLA Wang Ji-yan,et al."Sensitivity analysis of the DeNitrification and Decomposition model for simulating regional carbon budget at the wetland-grassland area on the Zoige Plateau, china".JOURNAL OF MOUNTAIN SCIENCE 13.7(2016):1200-1216.
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