IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems
Zhang, J. H.1,2; Li, F. C.1,2,3
Corresponding AuthorZhang, J. H.
2013
Source PublicationSOIL USE AND MANAGEMENT
ISSN0266-0032
EISSN1475-2743
Volume29Issue:3Pages:365-373
SubtypeArticle
AbstractFew studies have demonstrated soil redistribution under upslope tillage (UT) rather than downslope tillage (DT) and its impact on soil organic carbon (SOC) redistribution in long-term agricultural practices in hillslope landscapes. We selected two neighbouring sites from the Sichuan Basin, China, one under DT and the other under UT, to determine the pattern of soil and SOC redistribution under a long-term UT practice. DT caused soil loss at upper slope positions and soil accumulation at lower slope positions. However, UT resulted in soil accumulation at upper slope positions and soil loss at lower slope positions. The total erosion rate decreased by 60.5% after 29years of UT compared with DT. Having the same direction of soil movement by tillage and water exaggerated total soil loss, whereas having the two movements in the contrasting direction of soil for the two reduced it. SOC stocks at positions from summit to downslope were much larger (33.8%) and at toe-slope positions were only slightly greater (4.5%) in the UT soils than comparable values for the DT site. The accumulation rate of SOC at the UT site increased by 0.26Mg/ha/year compared with that at the DT site. It is suggested that soil movement by water and tillage erosion occurred in the same direction accelerates the depletion of SOC pools, whereas the opposite direction of soil movement for the two can increase SOC accumulation. Our results suggest that UT has significant impacts on soil redistribution processes and SOC accumulation on steeply sloping land.
KeywordTillage Erosion Tillage Direction Soil Erosion Soil Organic Carbon Carbon Sequestration
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1111/sum.12040
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordINTENSIVE TILLAGE ; MOLDBOARD PLOW ; EROSION RATES ; TRANSLOCATION ; LANDSCAPES ; HILLSLOPE ; DYNAMICS ; CHINA ; SOC ; SICHUAN
Language英语
Quartile2区
TOP
WOS SubjectSoil Science
WOS IDWOS:000324301800008
Funding OrganizationNational Natural Science Foundation of China(41271242) ; Institute of Mountain Hazards and Environment, CAS(SDS-135-1206)
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6558
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Environm Evolut & Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, 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
Zhang, J. H.,Li, F. C.. Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems[J]. SOIL USE AND MANAGEMENT,2013,29(3):365-373.
APA Zhang, J. H.,&Li, F. C..(2013).Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems.SOIL USE AND MANAGEMENT,29(3),365-373.
MLA Zhang, J. H.,et al."Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems".SOIL USE AND MANAGEMENT 29.3(2013):365-373.
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