Assessment of the performance of WEPP in purple soil area with simulated rainfall experiments
文献类型：期刊论文
| 作者 | Fu Bin1,2 ; Wang Yukuan1,2; Xu Pei1,2; Yan Kun1,2
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 9期号:4页码:570-579 |
| 关键词 | WEPP Soil erosion Simulated rainfall Purple soil Erodibility |
| ISSN号 | 1672-6316 |
| 通讯作者 | wang yukuan |
| 英文摘要 | The water erosion prediction project (WEPP) model is a popular water erosion prediction tool developed on the basis of the physical processes of water erosion. Although WEPP has been widely used around the world, its application in China is still insufficient. In this study, the performance of WEPP used to estimate the runoff and soil loss on purple soil (Calcaric Regosols in FAO taxonomy) sloping cropland was assessed with the data from runoff plots under simulated rainfall conditions. Based on measured soil properties, runoff and erosion parameters, namely effective hydraulic conductivity, inter-rill erodibility, rill erodibility, and critical shear stress were determined to be 2.68 mm h(-1), 5.54 x 10(6) kg s(-1) m(-4), 0.027 s m(-1) and 3.5 Pa, respectively, by using the recommended equations in the WEPP user manual. The simulated results were not good due to the low Nash efficiency of 0.41 for runoff and negative Nash efficiency for soil loss. After the four parameters were calibrated, WEPP performed better for soil loss prediction with a Nash efficiency of 0.76. The different results indicated that the equations recommended by WEPP to calculate parameters such as erodiblity and critical shear stress are not suitable for the purple soil areas, Sichuan Province, China. Although the predicted results can be accepted by optimizing the runoff and erosion parameters, more research related to the determination of erodibility and critical sheer stress must be conducted to improve the application of WEPP in the purple soil areas. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | 水土保持学 |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | WATER EROSION ; LOSS PREDICTIONS ; RUNOFF ; MODEL ; HILLSLOPE ; ERODIBILITY ; RESISTANCE ; RANGELAND ; STRENGTH ; RUSLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000306732900013 |
| 公开日期 | 2012-12-10 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4381]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2012_Vol9 No.4 成都山地灾害与环境研究所_山区发展研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu Bin,Wang Yukuan,Xu Pei,et al. Assessment of the performance of WEPP in purple soil area with simulated rainfall experiments[J]. JOURNAL OF MOUNTAIN SCIENCE,2012,9(4):570-579. |
| APA | Fu Bin,Wang Yukuan,Xu Pei,&Yan Kun.(2012).Assessment of the performance of WEPP in purple soil area with simulated rainfall experiments.JOURNAL OF MOUNTAIN SCIENCE,9(4),570-579. |
| MLA | Fu Bin,et al."Assessment of the performance of WEPP in purple soil area with simulated rainfall experiments".JOURNAL OF MOUNTAIN SCIENCE 9.4(2012):570-579. |
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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