A modification to the Soil Conservation Service curve number method for steep slopes in the Loess Plateau of China
文献类型：期刊论文
| 作者 | Huang MB ; Gallichand J ; Wang ZL |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2006 |
| 卷号 | 20期号:3页码:579-589 |
| 关键词 | SCSCN method slope runoff Loess Plateau |
| 通讯作者 | Gallichand, J |
| 英文摘要 | The Soil Conservation Service curve number (CN) method is widely used for predicting direct runoff from rainfall. However, despite the extent of cultivation on hillslope areas, very few attempts have been made to incorporate a slope factor into the CN method. The objectives of this study were (1) to evaluate existing approaches integrating slope in the CN method, and (2) to develop an equation incorporating a slope factor into the CN method for application in the steep slope areas of the Loess Plateau of China. The dataset consisted of 11 years of rainfall and runoff measurements from two experimental sites with slopes ranging from 14 to 140%. The results indicated that the standard CN method underestimated large runoff events and overestimated small events. For our experimental conditions, the optimized and non-optimized forms of the slope-modified CN method of the Erosion Productivity Impact Calculator model improved runoff prediction for steep slopes, but large runoff events were still underestimated and small ones overpredicted. Based on relationships between slope and the observed and theoretical CN values, an equation was developed that better predicted runoff depths with an R-2 of 0(.)822 and a linear regression slope of 0(.)807. This slope-adjusted CN equation appears to be the most appropriate for runoff prediction in the steep areas of the Loess Plateau of China. Copyright (c) 2005 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-06-15 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/4904]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | Huang MB,Gallichand J,Wang ZL. A modification to the Soil Conservation Service curve number method for steep slopes in the Loess Plateau of China[J]. HYDROLOGICAL PROCESSES,2006,20(3):579-589. |
| APA | Huang MB,Gallichand J,&Wang ZL.(2006).A modification to the Soil Conservation Service curve number method for steep slopes in the Loess Plateau of China.HYDROLOGICAL PROCESSES,20(3),579-589. |
| MLA | Huang MB,et al."A modification to the Soil Conservation Service curve number method for steep slopes in the Loess Plateau of China".HYDROLOGICAL PROCESSES 20.3(2006):579-589. |
入库方式： OAI收割
来源：水土保持研究所
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