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Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China
Lu, X.1; Yan, Y.1; Sun, J.2; Zhang, X.3; Chen, Y.1; Wang, X.1; Cheng, G.1
2015
Source PublicationSOLID EARTH
ISSN1869-9510
Volume6Issue:4Pages:1195-1205
Corresponding AuthorYan, Y.(yy@imde.ac.cn)
AbstractSince the 1980s, alpine grasslands have been seriously degraded on the Tibetan Plateau. Grazing exclusion by fencing has been widely adopted to restore degraded grasslands. To clarify the effect of grazing exclusion on soil quality, we investigated soil properties and nutrients by comparing free-grazing (FG) and grazing exclusion (GE) grasslands in Tibet. Soil properties - including soil bulk density, pH, particle size distributions, and proportion of aggregates showed no significant difference between FG and GE plots. Soil organic carbon, soil available nitrogen, and available phosphorus contents did not differ with grazing exclusion treatments in both the 0-15 and 15-30 cm layer. However, soil total nitrogen and total phosphorus contents were remarkably reduced due to grazing exclusion at 0-15 cm depth. Furthermore, growing season temperature and/or growing season precipitation had significant effects on almost all soil property and nutrient indicators. This study demonstrates that grazing exclusion had no impact on most soil properties and nutrients in Tibet. Additionally, the potential shift of climate conditions should be considered when recommending any policy designed for restoration of degraded soil in alpine grasslands in the future. Nevertheless, because the results of the present study come from a short-term (6-8 years) grazing exclusion, the assessments of the ecological effects of the grazing exclusion management strategy on soil quality of degraded alpine grasslands in Tibet still need long-term continued research.
DOI10.5194/se-6-1195-2015
WOS KeywordORGANIC-MATTER ; INNER-MONGOLIA ; NORTHERN CHINA ; CARBON STOCKS ; NITROGEN MINERALIZATION ; LIVESTOCK EXCLUSION ; TEMPERATE STEPPE ; C STOCKS ; PLATEAU ; STORAGE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41371267] ; National Natural Science Foundation of China[41201053] ; Action Plan of the Chinese Academy of Sciences for Western Development[KZCX2-XB3-08] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment[SDS-135-1203-03]
Funding OrganizationNational Natural Science Foundation of China ; Action Plan of the Chinese Academy of Sciences for Western Development ; 135 Strategic Program of the Institute of Mountain Hazards and Environment
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000374540800007
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67179
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYan, Y.
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Hohai Univ, Sch Publ Adm, Nanjing 210098, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Lu, X.,Yan, Y.,Sun, J.,et al. Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China[J]. SOLID EARTH,2015,6(4):1195-1205.
APA Lu, X..,Yan, Y..,Sun, J..,Zhang, X..,Chen, Y..,...&Cheng, G..(2015).Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China.SOLID EARTH,6(4),1195-1205.
MLA Lu, X.,et al."Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China".SOLID EARTH 6.4(2015):1195-1205.
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