Simulation and Cs-137 tracer show tillage erosion translocating soil organic carbon, phosphorus, and potassium
文献类型：期刊论文
| 作者 | Li, Fucheng1,2,3; Zhang, Jianhui1,2 ; Su, Zhengan1,2; Fan, Hongzhu1,2,3
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| 刊名 | JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
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| 出版日期 | 2013-10-01 |
| 卷号 | 176期号:5页码:647-654 |
| 关键词 | tillage erosion spatial variability soil redistribution vertical mixture boundary effect |
| ISSN号 | 1436-8730 |
| 通讯作者 | Zhang, Jianhui |
| 英文摘要 | Research on how tillage-induced soil redistribution affects soil properties is limited for complex slopes in nonmechanized agricultural areas. The objectives of this study are (1) to examine the vertical redistribution of soil organic C (SOC), extractable P and K induced by tillage on a complex slope, (2) to assess the effects of tillage erosion on soil profile properties, and (3) to elucidate the variations in soil properties induced by both vertical mixture and downslope transport of soil within the landscape. Simulated tillage was conducted in the Yangtze Three Gorges Reservoir Area, China. The Cs-137 data showed that intense tillage caused the soil vertical mixture and downslope transport. The redistribution of Cs-137 and soil constituents varied with the number of tillage passes and location in relation to curvature. SOC was completely depleted with the disappearance of soil profiles at the summit position, while SOC concentrations decreased by 26% for the till layer and increased by 29% for the sublayer at the toeslope position for the 15-tillage operation, as compared with those of pretillage. The vertical redistribution of extractable P and K followed a similar pattern to that of SOC. The gap and variation in soil constituents between the till layer and sublayer declined after tillage, suggesting that the mixing effect of tillage attenuates the variability of soil properties in the vertical direction. Net loss and gain of soil constituents occurred at the summit and toeslope positions, respectively, suggesting that the downslope transport of soil induced by tillage accentuates the variability of soil properties in the lateral direction. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Agronomy ; Plant Sciences ; Soil Science |
| 研究领域[WOS] | Agriculture ; Plant Sciences |
| 关键词[WOS] | DIFFERENT LANDSCAPES ; INTENSIVE TILLAGE ; STEEP HILLSLOPE ; WATER EROSION ; CROP YIELD ; REDISTRIBUTION ; SLOPE ; CONSTITUENTS ; CULTIVATION ; TERRACES |
| 收录类别 | SCI |
| 原文出处 | http://onlinelibrary.wiley.com/doi/10.1002/jpln.201200341/pdf |
| 语种 | 英语 |
| WOS记录号 | WOS:000327899800001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/8314]  |
| 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 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, 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 | Li, Fucheng,Zhang, Jianhui,Su, Zhengan,et al. Simulation and Cs-137 tracer show tillage erosion translocating soil organic carbon, phosphorus, and potassium[J]. JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,2013,176(5):647-654. |
| APA | Li, Fucheng,Zhang, Jianhui,Su, Zhengan,&Fan, Hongzhu.(2013).Simulation and Cs-137 tracer show tillage erosion translocating soil organic carbon, phosphorus, and potassium.JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,176(5),647-654. |
| MLA | Li, Fucheng,et al."Simulation and Cs-137 tracer show tillage erosion translocating soil organic carbon, phosphorus, and potassium".JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE 176.5(2013):647-654. |
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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