Effect of Soil Erosion on Soil Properties and Crop Yields on Slopes in the Sichuan Basin, China
文献类型：期刊论文
| 作者 | Su Zheng-An1,2,3 ; Zhang Jian-Hui1,2; Nie Xiao-Jun1,2,3
|
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 20期号:6页码:736-746 |
| 关键词 | (137)Cs inventory linear slope soil degradation tillage erosion water erosion |
| ISSN号 | 1002-0160 |
| 通讯作者 | Zhang, J. H. |
| 英文摘要 | Roles of tillage erosion and water erosion in the development of within-field spatial variation of surface soil properties and soil degradation and their contributions to the reduction of crop yields were studied on three linear slopes in the Sichuan Basin, southwestern China. Tillage erosion was found to be the dominant erosion process at upper slope positions of each linear slope and on the whole short slope (20 m). On the long slope (110 m) and medium slope (40 m), water erosion was the dominant erosion process. Soil organic matter and soil nutrients in the tillage layer were significantly related to slope length and (137)Cs inventories on the long slope; however, there was no significant correlation among them on the short slope, suggesting that water erosion lowered soil quality by transporting SOM and surface soil nutrients selectively from the upper to lower slope positions, while tillage erosion transported soil materials unselectively. On the medium slope, SOM, total N, and available N in the tillage layer were correlated with slope length and the other properties were distributed evenly on the slope, indicating that water erosion on this slope was still the dominant soil redistribution process. Similar patterns were found for the responses of grain yield, aboveground biomass, and harvest index for slopes. These results indicated that tillage erosion was a major cause for soil degradation and grain yield reduction on the linear slopes because it resulted in displacement of the tillage layer soil required for maintaining soil quality and plant growth. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | 水土保持学 |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | TILLAGE EROSION ; WATER EROSION ; SPATIAL VARIATION ; GREAT-PLAINS ; HILLY AREAS ; TRANSLOCATION ; TERRACES ; RATES ; REDISTRIBUTION ; LANDSCAPES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000284668000007 |
| 公开日期 | 2012-12-11 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4429]  |
| 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 | Su Zheng-An,Zhang Jian-Hui,Nie Xiao-Jun. Effect of Soil Erosion on Soil Properties and Crop Yields on Slopes in the Sichuan Basin, China[J]. PEDOSPHERE,2010,20(6):736-746. |
| APA | Su Zheng-An,Zhang Jian-Hui,&Nie Xiao-Jun.(2010).Effect of Soil Erosion on Soil Properties and Crop Yields on Slopes in the Sichuan Basin, China.PEDOSPHERE,20(6),736-746. |
| MLA | Su Zheng-An,et al."Effect of Soil Erosion on Soil Properties and Crop Yields on Slopes in the Sichuan Basin, China".PEDOSPHERE 20.6(2010):736-746. |
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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