| Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China | |
| Fang, H. Y.1,2; Cai, Q. G.1; Chen, H.1; Li, Q. Y.3 | |
| 发表期刊 | ENVIRONMENTAL MANAGEMENT
 |
| ISSN | 0364-152X |
| 2008-09-01 | |
| 卷号 | 42期号:3页码:402-411 |
| 关键词 | Gullied Loess Region Loess Plateau Scale Effect Rainfall Regime Runoff Coefficient Slope Length Slope Gradient |
| 产权排序 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc;Grad Univ Chinese Acad Sci;Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev |
| 通讯作者 | Cai, QG, Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | Runoff was measured from seven plots with different slopes nested in Tuanshangou catchment on the Loess Plateau to study effect of slopes on runoff in relation to rainfall regimes. Based on nine years of field observation and K-mean clusters, 84 rainfall events were grouped into three rainfall regimes. Rainfall regime A is the group of events with strong rainfall intensity, high frequency, and short duration. Rainfall regime C consists of events with low intensity, long duration, and infrequent occurrence. Rainfall regime B is the aggregation of events of medium intensity and medium duration, and less frequent occurrence. The following results were found: (1) Different from traditional studies, runoff coefficient neither decreased nor increased, but presented peak value on the slope surfaces; (2) For individual plot, runoff coefficients induced by rainfall regime A were the highest, and those induced by rainfall regime C were the lowest; Downslope, the runoff coefficients induced by three rainfall regimes presented the same changing trend, although the peak value induced by regime A occurred on a shorter slope length compared to those by regime B and C; (3) Scale effect on runoff induced by rainfall regime A was the least, and that induced by rainfall regime C was the largest. These results can be explained by the interactions of crusting, soil moisture content, slope length and gradient, and erosion units, etc., in the context of different rainfall regimes. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [40635027, 30671721]; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences [066U0104SZ] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | HORTONIAN OVERLAND-FLOW ; WESTERN NIGERIA ; SOIL-EROSION ; LABORATORY EXPERIMENTS ; CRUST DEVELOPMENT ; TILLAGE METHODS ; SURFACE RUNOFF ; INFILTRATION ; LENGTH ; SCALE |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000258562100004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3588 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, H. Y.,Cai, Q. G.,Chen, H.,et al. Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China[J]. ENVIRONMENTAL MANAGEMENT,2008,42(3):402-411. |
| APA | Fang, H. Y.,Cai, Q. G.,Chen, H.,&Li, Q. Y..(2008).Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China.ENVIRONMENTAL MANAGEMENT,42(3),402-411. |
| MLA | Fang, H. Y.,et al."Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China".ENVIRONMENTAL MANAGEMENT 42.3(2008):402-411. |
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