IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet
Wu, Jianbo1; Hong, Jiangtao1,2; Wang, Xiaodan1; Sun, Jian1,2; Lu, Xuyang1; Fan, Jihui1; Cai, Yanjiang1
Corresponding Author王小丹
2013
Source PublicationPLOS ONE
ISSN1932-6203
Volume8Issue:12Pages:e81986
SubtypeArticle
AbstractAlpine steppe is considered to be the largest grassland type on the Tibetan Plateau. This grassland contributes to the global carbon cycle and is sensitive to climate changes. The allocation of biomass in an ecosystem affects plant growth and the overall functioning of the ecosystem. However, the mechanism by which plant biomass is allocated on the alpine steppe remains unclear. In this study, biomass allocation and its relationship to environmental factors on the alpine grassland were studied by a meta-analysis of 32 field sites across the alpine steppe of the northern Tibetan Plateau. We found that there is less above-ground biomass (M-A) and below-ground biomass (M-B) in the alpine steppe than there is in alpine meadows and temperate grasslands. By contrast, the root-to-shoot ratio (R:S) in the alpine steppe is higher than it is in alpine meadows and temperate grasslands. Although temperature maintained the biomass in the alpine steppe, precipitation was found to considerably influence M-A, M-B, and R:S, as shown by ordination space partitioning. After standardized major axis (SMA) analysis, we found that allocation of biomass on the alpine steppe is supported by the allometric biomass partitioning hypothesis rather than the isometric allocation hypothesis. Based on these results, we believe that M-A and M-B will decrease as a result of the increased aridity expected to occur in the future, which will reduce the landscape's capacity for carbon storage.
KeywordAllometric Allocation Precipitation Above-ground And Below-ground Biomass Temperature Alpine Steppe
Subject Area生态学
WOS HeadingsScience & Technology
DOI10.1371/journal.pone.0081986
URL查看原文
WOS Subject ExtendedScience & Technology - Other Topics
Indexed BySCI
WOS KeywordBELOW-GROUND BIOMASS ; CARBON ALLOCATION ; ABOVEGROUND BIOMASS ; NUTRIENT AVAILABILITY ; SPECIES COMPOSITION ; GLOBAL PATTERNS ; SOIL PROPERTIES ; INNER-MONGOLIA ; PLANT BIOMASS ; GRASSLANDS
Language英语
Quartile2区
TOP
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000328731800031
Funding OrganizationCAS(XDB03030505 ; National science and technology support project(2011BAC09B03) ; Program of the IMDE ; Science Foundation for Young Scientists of IMDE, CAS ; SDS-135-1203-01)
Citation statistics
Cited Times:158[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6601
Collection山地表生过程与生态调控重点实验室
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazard & Environm, Key Lab Mt Environm Evolut & Its Regulat, Chengdu, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wu, Jianbo,Hong, Jiangtao,Wang, Xiaodan,et al. Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet[J]. PLOS ONE,2013,8(12):e81986.
APA Wu, Jianbo.,Hong, Jiangtao.,Wang, Xiaodan.,Sun, Jian.,Lu, Xuyang.,...&Cai, Yanjiang.(2013).Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet.PLOS ONE,8(12),e81986.
MLA Wu, Jianbo,et al."Biomass Partitioning and Its Relationship with the Environmental Factors at the Alpine Steppe in Northern Tibet".PLOS ONE 8.12(2013):e81986.
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