Integrated erosion control measures and environmental effects in rocky mountainous areas in northern China
文献类型：SCI/SSCI论文
| 作者 | He J. ; Cai Q. ; Li G. ; Wang Z. |
| 发表日期 | 2010 |
| 关键词 | Rainfall character Antecedent rainfall Gully head protection Cumulated erosion amount surface hydraulic gradients antecedent soil-moisture rainfall intensity loess plateau runoff water vegetation catchment land transport |
| 英文摘要 | Based on observations of runoff plots and field investigations of gully cross-sections, impacts of various soil and water conservation measures on runoff and sediment yield are analyzed for different rainfall conditions. The results show that antecedent rainfall and rainfall intensity are the main factors affecting the runoff and soil erosion processes. Rainfall events with antecedent rainfall can produce high runoff and sediment yield. Large differences in the characteristics of two rainfall events will result in greater variations of total runoff and sediment yield from the same runoff plot. Under the same soil control measure and rainfall condition, soil and water conservation measures can reduce the impacts of antecedent rainfall and rainfall intensity on runoff and soil erosion. Among various measures, level terrace seems to be the greatest for soil conservation purposes. Combining with engineering measures,Vegetation measures is also effective in controlling runoff and soil erosion. In the initial stage of vegetation enclosure measures, engineering measure is necessary to improve the environment for ecological recovery. Gully head protection can control gully erosion effectively, but the effectiveness of gully head protection would be reduced when rainfall intensity increases. Therefore, the design of a gully head protection structure must be based on local hydrological conditions. |
| 出处 | International Journal of Sediment Research |
| 卷 | 25 |
| 期 | 3 |
| 页 | 294-303 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1001-6279 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23878]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | He J.,Cai Q.,Li G.,et al. Integrated erosion control measures and environmental effects in rocky mountainous areas in northern China. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
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