GIS-BASED SOIL LOSS ESTIMATION WITH USLE FOR SOIL CONSERVATION PLANNING IN HILLY AREAS OF PURPLISH SOILS
文献类型：期刊论文
| 作者 | Dai, Fuqiang1; Lv, Zhiqiang1; Zhou, Qigang1; Liu, Gangcai2,3
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| 刊名 | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:4B页码:1266-1273 |
| 关键词 | Soil loss water erosion USLE GIS hilly areas of purplish soils |
| ISSN号 | 1018-4619 |
| 通讯作者 | Dai, Fuqiang |
| 英文摘要 | Estimating soil loss quantitatively and spatially is essential for identifying high erosion risk areas, and is helping to adapt soil conservation measures to specific sites. Because soil loss estimation is time-consuming and costly, using physical models on a regional scale, the Universal Soil Loss Equation (USLE), and integrating with a geographic information system (GIS), was applied in this study, making soil loss estimation and its spatial distribution feasible with reasonable costs and greater accuracy. A case study was conducted in the Jieliucun watershed as a representative of hilly areas of purplish soils in China. Rainfall data, a soil map, DEM, and a land use and land cover (LULC) map were used as primary data, and then USLE factors were generated by given methods. To investigate the relationship between predicted soil loss and environmental factors, the values of soil loss were also divided into a number of categories according to soil loss classes, slope zones, LULC types and soil types. Average of annual soil loss was 8.52 t ha(-1) yr(-1) for the whole watershed. More than 20% of the watershed fell into the soil loss classes over very low where average annual soil loss was more than the soil loss tolerance (7) value. The highest values were found in dry croplands with a slope between 15 degrees and 25 degrees as well as the purplish soils. In con-clusion, there is a strong need for adopting effective and affordable soil conservation measures to avoid an irrever-sible state of soil degradation in these areas. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | LOSS EQUATION ; EROSION PREDICTION ; RUSLE ; SCALE ; CHINA ; RISK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319178900013 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/8312]  |
| 专题 | 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.Chongqing Technol & Business Univ, Sch Tourism & Land Resources, Chongqing 400067, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Minist Water Resources, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Fuqiang,Lv, Zhiqiang,Zhou, Qigang,et al. GIS-BASED SOIL LOSS ESTIMATION WITH USLE FOR SOIL CONSERVATION PLANNING IN HILLY AREAS OF PURPLISH SOILS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(4B):1266-1273. |
| APA | Dai, Fuqiang,Lv, Zhiqiang,Zhou, Qigang,&Liu, Gangcai.(2013).GIS-BASED SOIL LOSS ESTIMATION WITH USLE FOR SOIL CONSERVATION PLANNING IN HILLY AREAS OF PURPLISH SOILS.FRESENIUS ENVIRONMENTAL BULLETIN,22(4B),1266-1273. |
| MLA | Dai, Fuqiang,et al."GIS-BASED SOIL LOSS ESTIMATION WITH USLE FOR SOIL CONSERVATION PLANNING IN HILLY AREAS OF PURPLISH SOILS".FRESENIUS ENVIRONMENTAL BULLETIN 22.4B(2013):1266-1273. |
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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