| Estimation of the spatial distribution of soil erosion in the hilly area of Sichuan, China | |
| 语种 | 英语 |
Jin, Xiaoli1,2; Cheng, Genwei1 ; Xu, C.-Y.3; Fan, Jihui1; Ma, Zelong2
| |
| 2012 | |
| 会议录名 | Erosion and sediment yields in the changing environment (IAHS Publ. 356) |
| 会议录编者/会议主办者 | IAHS |
| 页码 | 228-234 |
| 会议名称 | IAHS international commission on continental erosion symposium |
| 会议日期 | October 11, 2012 - October 15, 2012 |
| 会议地点 | Chengdu |
| 会议举办国 | China |
| 产权排序 | 1 |
| 摘要 | The hilly area of Sichuan (China) has suffered from soil erosion as a result of the intensive agriculture and steep topography. Many different methods have been used for the estimation of soil erosion and no clear consensus about erosion rates and subsequent sediment delivery ratios (SDR) has been reached. In this study, the Universal Soil Loss Equation (USLE) with different parameter estimation methods was applied to two river basins (i.e. Weichenghe (WCH) and Lizixi (LZX)) with the help of G1S techniques. The results were compared with those of previous studies based on remote sensing, erosion plots or the137Cs technique. The main results can be summarized as: (1) different rainfall erosivity estimation methods generate vastly different results; (2) using two-dimensional slope length produces higher soil erosion rate estimates and lower SDRs than the conventional approach in USLE; (3) the average annual soil erosion rates for WCH and LZX were estimated at 706 t km-2year-1and 3040 t km-2year-1, respectively, and the corresponding sediment delivery ratios at 0.27 and 0.38; and (4) the high erosion rates reflect the high altitude and intensive agricultural land use. Copyright © 2012 IAHS Press. |
| 关键词 | USLE rainfall erosivity soil erosion rate spatial distribution |
| ISBN号 | 978-1-907161-33-9 |
| ISSN号 | 0144-7815 |
| 收录类别 | EI |
| EI收藏号 | Accession number:20133616706428 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.imde.ac.cn/handle/131551/24079 |
| 专题 | 山地表生过程与生态调控重点实验室 |
| 通讯作者 | Jin, Xiaoli |
| 作者单位 | 1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; 2.Sichuan Hydraulic Science Research Institute, Chengdu 610072, China; 3.Department of Geosciences, University of Oslo, Norway |
| 第一作者单位 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者单位 | 中国科学院水利部成都山地灾害与环境研究所 |
| 推荐引用方式 GB/T 7714 | Jin, Xiaoli,Cheng, Genwei,Xu, C.-Y.,et al. Estimation of the spatial distribution of soil erosion in the hilly area of Sichuan, China[C]//IAHS,2012:228-234. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 228-.pdf（3886KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | ||
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