Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau
文献类型：期刊论文
| 作者 | Zhao, Guangju1,2,3; Mu, Xingmin1,2,3; Han, Mengwei1,2; An, Zhengfeng1,2; Gao, Peng1,2,3; Sun, Wenyi1,2,3; Xu, Wenlong3 |
| 刊名 | CATENA
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 149页码:110-119 |
| 关键词 | Dam-controlled watershed Fingerprinting Sedimentation Sediment yield Sediment sources Loess Plateau |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2016.09.010 |
| 通讯作者 | Mu, Xingmin(xmmuiswc@gmail.com) |
| 英文摘要 | An improved understanding of the temporal variations in soil erosion rates and sediment sources is necessary to identify the main areas prone to soil erosion and to effectively implement soil and water conservation measures. In this study, we selected two dam-controlled watersheds (Xiaoshilata and Yangjiagou) on the northern Loess Plateau, China, and determined the temporal variations in the sediment yield. The sedimentation upstream of the dams showed that there were 31 and 9 flood couplets in the Xiaoshilata (1958-1972) and Yangjiagou watersheds (2007-2011), respectively, which have trapped 16.5 x 10(4) t and 338 x 10(4) t of sediment, respectively. The estimated specific sediment yield was approximately 173.6 t/ha/a and 106.1 t/ha/a in the Xiaoshilata and Yangjiagou watersheds, respectively. A multivariate mixed model was applied to identify the different sediment sources. The results indicated that weathered sandstone contributed approximately 61.52% of the total sediment, and the remaining sediment loss was from bare loess soil (32.54%) and grassland (5.94%) in the Xiaoshilata watershed. In the Yangjiagou watershed, approximately 66.8% of the sediment originated from weathered sandstone, whereas bare loess and grassland accounted for 17.5% and 15.7% of the sediment yield, respectively. Based on these findings, we recommend that comprehensive soil conservation measures are needed to soil erosion control for the permanent steep gullies due to high sediment contribution. The sedimentation behind the check dams provides an indirect method for estimating the sediment yield in ungauged basins. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | TRACING SUSPENDED SEDIMENT ; YELLOW-RIVER BASIN ; LAND-USE CHANGE ; SOIL-EROSION ; CHECK-DAM ; FINGERPRINTING APPROACH ; TROPICAL CATCHMENT ; MOUNTAIN CATCHMENT ; DYNAMIC CHANGES ; MIDDLE REACHES |
| 资助项目 | National Natural Science Foundation of China[41671279] ; National Natural Science Foundation of China[41201266] ; National Key Scientific Research Project[2016YFC0402401] ; special program for Key Basic Research of the Ministry of Science and Technology[2014FY210100] ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021403-Q2] ; Shaanxi Youth Science and Technology Star Project[2015KJXX-58] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000390733300010 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; National Key Scientific Research Project ; special program for Key Basic Research of the Ministry of Science and Technology ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; Shaanxi Youth Science and Technology Star Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/65280]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Mu, Xingmin |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Guangju,Mu, Xingmin,Han, Mengwei,et al. Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau[J]. CATENA,2017,149:110-119. |
| APA | Zhao, Guangju.,Mu, Xingmin.,Han, Mengwei.,An, Zhengfeng.,Gao, Peng.,...&Xu, Wenlong.(2017).Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau.CATENA,149,110-119. |
| MLA | Zhao, Guangju,et al."Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau".CATENA 149(2017):110-119. |
入库方式： OAI收割
来源：地理科学与资源研究所
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