Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems
文献类型：期刊论文
| 作者 | Zhang, J. H.1,2 ; Li, F. C.1,2,3
|
| 刊名 | SOIL USE AND MANAGEMENT
 |
| 出版日期 | 2013-09-01 |
| 卷号 | 29期号:3页码:365-373 |
| 关键词 | Tillage erosion tillage direction soil erosion soil organic carbon carbon sequestration |
| ISSN号 | 0266-0032 |
| 通讯作者 | Zhang, J. H. |
| 英文摘要 | Few 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | INTENSIVE TILLAGE ; MOLDBOARD PLOW ; EROSION RATES ; TRANSLOCATION ; LANDSCAPES ; HILLSLOPE ; DYNAMICS ; CHINA ; SOC ; SICHUAN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000324301800008 |
| 公开日期 | 2013-12-01 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6558]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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