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Land-use conversion and changing soil carbon stocks in China's 'Grain-for-Green' Program: a synthesis
Deng, Lei1; Liu, Guo-Bin1,2; Shangguan, Zhou-Ping1,2
2014-11-01
Source PublicationGLOBAL CHANGE BIOLOGY
Volume20Issue:11Pages:3544-3556
AbstractThe establishment of either forest or grassland on degraded cropland has been proposed as an effective method for climate change mitigation because these land use types can increase soil carbon (C) stocks. This paper synthesized 135 recent publications (844 observations at 181 sites) focused on the conversion from cropland to grassland, shrubland or forest in China, better known as the Grain-for-Green' Program to determine which factors were driving changes to soil organic carbon (SOC). The results strongly indicate a positive impact of cropland conversion on soil C stocks. The temporal pattern for soil C stock changes in the 0-100cm soil layer showed an initial decrease in soil C during the early stage (<5years), and then an increase to net C gains (>5years) coincident with vegetation restoration. The rates of soil C change were higher in the surface profile (0-20cm) than in deeper soil (20-100cm). Cropland converted to forest (arbor) had the additional benefit of a slower but more persistent C sequestration capacity than shrubland or grassland. Tree species played a significant role in determining the rate of change in soil C stocks (conifer < broadleaf, evergreen < deciduous forests). Restoration age was the main factor, not temperature and precipitation, affecting soil C stock change after cropland conversion with higher initial soil C stock sites having a negative effect on soil C accumulation. Soil C sequestration significantly increased with restoration age over the long-term, and therefore, the large scale of land-use change under the Grain-for-Green' Program will significantly increase China's C stocks.
SubtypeArticle
KeywordCarbon Sequestration Rate China Cropland Conversion Land-use Change Soil Carbon
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS KeywordORGANIC-CARBON ; AGRICULTURAL SOILS ; NITROGEN DYNAMICS ; ARABLE SOILS ; AFFORESTATION ; SEQUESTRATION ; METAANALYSIS ; IMPACTS ; DEFORESTATION ; PHOSPHORUS
Indexed BySCI
Language英语
WOS SubjectBiodiversity Conservation ; Ecology ; Environmental Sciences
WOS IDWOS:000343762800021
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:195[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68424
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShangguan, Zhou-Ping
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Deng, Lei,Liu, Guo-Bin,Shangguan, Zhou-Ping. Land-use conversion and changing soil carbon stocks in China's 'Grain-for-Green' Program: a synthesis[J]. GLOBAL CHANGE BIOLOGY,2014,20(11):3544-3556.
APA Deng, Lei,Liu, Guo-Bin,&Shangguan, Zhou-Ping.(2014).Land-use conversion and changing soil carbon stocks in China's 'Grain-for-Green' Program: a synthesis.GLOBAL CHANGE BIOLOGY,20(11),3544-3556.
MLA Deng, Lei,et al."Land-use conversion and changing soil carbon stocks in China's 'Grain-for-Green' Program: a synthesis".GLOBAL CHANGE BIOLOGY 20.11(2014):3544-3556.
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