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Meta-analysis of relationships between environmental factors and aboveground biomass in the alpine grassland on the Tibetan Plateau
Sun, J.1,2; Cheng, G. W.1; Li, W. P.1,2,3
Corresponding AuthorCheng, G. W.
2013
Source PublicationBIOGEOSCIENCES
ISSN1726-4170
EISSN1726-4189
Volume10Issue:3Pages:1707-1715
SubtypeArticle
AbstractThe Tibetan Plateau, known as the "world's third pole" for its extremely harsh and fragile ecological environment, has attracted great attention because of its sensitivity to global changes. Alpine grassland on the Tibetan Plateau has an important function in the global carbon cycle. Many studies have examined the effects of various environmental factors on biomass distribution. In this study, the relationships between the habitat parameters and the aboveground biomass (AGB) abundance on the Tibetan Plateau were examined through a meta-analysis of 110 field sites across the widely distributed alpine steppe and meadow. The obtained data were then analysed using the classification and regression tree model and the generalized additive model. The results showed that the AGB abundance in alpine steppe was positively correlated with six environmental factors, namely, soil organic carbon density of the top soil layer from 0 cm to 30 cm (SOC30 cm), longitude, mean annual precipitation (MAP), latitude, clay, and soil moisture. For the alpine meadow, five main factors were detected, namely, altitude, soil moisture, nitrogen, MAP, and mean annual temperature. The increased AGB abundance in the alpine steppe was associated with the increased SOC30 cm, MAP, and latitude, and the increased longitude resulted in decreased AGB abundance. For the alpine meadow, altitude and soil moisture showed strongly negative effects on AGB abundance, and soil nitrogen content was positively related to the AGB distribution across all examined sites. Our results suggest the combined effects of meteorological, topographic, and soil factors on the spatial patterns of AGB on the Tibetan Plateau.
KeywordBelow-ground Biomass Plant-species Diversity Interannual Variability Use Efficiency Soil-moisture China Productivity Communities Richness Patterns
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.5194/bg-10-1707-2013
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology
Indexed BySCI
WOS KeywordBELOW-GROUND BIOMASS ; PLANT-SPECIES DIVERSITY ; INTERANNUAL VARIABILITY ; USE EFFICIENCY ; SOIL-MOISTURE ; CHINA ; PRODUCTIVITY ; COMMUNITIES ; RICHNESS ; PATTERNS
Language英语
Quartile2区
TOP
WOS SubjectEcology ; Geosciences, Multidisciplinary
WOS IDWOS:000317010600031
Funding OrganizationKnowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-XB3-08) ; National Natural Science Foundation of China(31070405 ; Song S. Qian program ; R program ; 41001177)
Citation statistics
Cited Times:81[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5464
Collection山地灾害与地表过程重点实验室
山地表生过程与生态调控重点实验室
山地环境演变与生态调控实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazard & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.China West Normal Univ, Land & Resource Coll, Nanchong 637002, 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
Sun, J.,Cheng, G. W.,Li, W. P.. Meta-analysis of relationships between environmental factors and aboveground biomass in the alpine grassland on the Tibetan Plateau[J]. BIOGEOSCIENCES,2013,10(3):1707-1715.
APA Sun, J.,Cheng, G. W.,&Li, W. P..(2013).Meta-analysis of relationships between environmental factors and aboveground biomass in the alpine grassland on the Tibetan Plateau.BIOGEOSCIENCES,10(3),1707-1715.
MLA Sun, J.,et al."Meta-analysis of relationships between environmental factors and aboveground biomass in the alpine grassland on the Tibetan Plateau".BIOGEOSCIENCES 10.3(2013):1707-1715.
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