NWIPB OpenIR
Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau
Chang, X. F.1,2; Zhu, X. X.3,4; Wang, S. P.1; Cui, S. J.3,4; Luo, C. Y.3; Zhang, Z. H.3; Wilkes, A.5
2014
Source PublicationBIOGEOSCIENCES
ISSN1726-4170
Volume11Issue:13Pages:3495-3503
SubtypeArticle
AbstractGrassland soil organic carbon (SOC) is sensitive to anthropogenic activities. Increased anthropogenic disturbance related to overgrazing has led to widespread alpine grassland degradation on the Tibetan Plateau. The degraded grasslands are considered to have great potential for carbon sequestration after adoption of improved management practices. Here, we calibrated and employed the Century model to investigate the effects of overgrazing and improved managements on the SOC dynamics in alpine meadows. We calibrated the Century model against plant productivity at the Haibei Research Station. SOC stocks for validation were obtained in 2009-2010 from degraded alpine meadows in two communes. We found that Century model can successfully capture grassland SOC changes. Overall, our simulation suggests that degraded alpine meadow SOC significantly increased with the advent of restoration management from 2011 to 2030. Carbon sequestration rates ranged between 0.04 Mg C ha(-1) yr(-1) in lightly degraded winter grazing grasslands and 2.0 Mg C ha(-1) yr(-1) in moderately degraded summer grazing grasslands. Our modelling work also predicts that improve management in degraded Tibetan grasslands will contribute to an annual carbon sink of 0.022-0.059 Pg C yr(-1). These results imply that restoration of degraded grasslands in the Tibetan Plateau has great potential for soil carbon sequestration to mitigate greenhouse gases.; Grassland soil organic carbon (SOC) is sensitive to anthropogenic activities. Increased anthropogenic disturbance related to overgrazing has led to widespread alpine grassland degradation on the Tibetan Plateau. The degraded grasslands are considered to have great potential for carbon sequestration after adoption of improved management practices. Here, we calibrated and employed the Century model to investigate the effects of overgrazing and improved managements on the SOC dynamics in alpine meadows. We calibrated the Century model against plant productivity at the Haibei Research Station. SOC stocks for validation were obtained in 2009-2010 from degraded alpine meadows in two communes. We found that Century model can successfully capture grassland SOC changes. Overall, our simulation suggests that degraded alpine meadow SOC significantly increased with the advent of restoration management from 2011 to 2030. Carbon sequestration rates ranged between 0.04 Mg C ha(-1) yr(-1) in lightly degraded winter grazing grasslands and 2.0 Mg C ha(-1) yr(-1) in moderately degraded summer grazing grasslands. Our modelling work also predicts that improve management in degraded Tibetan grasslands will contribute to an annual carbon sink of 0.022-0.059 Pg C yr(-1). These results imply that restoration of degraded grasslands in the Tibetan Plateau has great potential for soil carbon sequestration to mitigate greenhouse gases.
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS KeywordTERRESTRIAL ECOSYSTEMS ; GRASSLAND MANAGEMENT ; CHINA ; DYNAMICS ; STEPPE ; SYSTEMS ; 1980S ; MODEL
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS SubjectEcology ; Geosciences, Multidisciplinary
WOS IDWOS:000339265800005
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/4274
Collection中国科学院西北高原生物研究所
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
3.Chinese Acad Sci, Northwest Inst Plateau Biol, Haibei Alpine Meadow Ecosyst Res Stn, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Kunming Inst Bot, Ctr Mt Ecosyst Studies, Kunming 650201, Peoples R China
Recommended Citation
GB/T 7714
Chang, X. F.,Zhu, X. X.,Wang, S. P.,et al. Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau[J]. BIOGEOSCIENCES,2014,11(13):3495-3503.
APA Chang, X. F..,Zhu, X. X..,Wang, S. P..,Cui, S. J..,Luo, C. Y..,...&Wilkes, A..(2014).Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau.BIOGEOSCIENCES,11(13),3495-3503.
MLA Chang, X. F.,et al."Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau".BIOGEOSCIENCES 11.13(2014):3495-3503.
Files in This Item: Download All
File Name/Size DocType Version Access License
Impacts of managemen(1705KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chang, X. F.]'s Articles
[Zhu, X. X.]'s Articles
[Wang, S. P.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chang, X. F.]'s Articles
[Zhu, X. X.]'s Articles
[Wang, S. P.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chang, X. F.]'s Articles
[Zhu, X. X.]'s Articles
[Wang, S. P.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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