Revealing soil erosion characteristics using deposited sediment sources in a complex small catchment in the wind-water erosion crisscross region of the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Zhang, Jiaqiong1,2; Yang, Mingyi1,2; Zhang, Fengbao1,2; Tang, Yao1; Wang, Xiaotong1; Wang, Yongji1 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 379页码:13 |
| ISSN号 | 0016-7061 |
| 关键词 | Composite fingerprinting approach Sediment source Gravity effect Coal mining Check dam |
| DOI | 10.1016/j.geoderma.2020.114634 |
| 通讯作者 | Yang, Mingyi() |
| 英文摘要 | Sediment sources in catchments under the control of check dams in the wind-water erosion crisscross region are more complicated compared to other regions on the Chinese Loess Plateau. This is due to their general complexity, which mainly results from variation in soil, landform, vegetation, and erosion agents. Accordingly, we used the composite fingerprinting approach to trace sediment sources in a typical small catchment in this region. The aim was to reveal the erosion characteristics of the catchment throughout the trapping history of the check dam. Sediment sources were classified into three-source (paleosol, loess and sand) and four-source (paleosolgully, loess-gully, slope bare of sand and slope covered by sand) groups on the basis of soil and landform types, respectively. Sediment sources throughout the whole trapping history of the check dam (1978-2010) could be classified into three stages according to variation in sedimentation rate. Results showed that depositional sediment in the check dam was primarily from gullies (averaging 80.1%), especially the paleosol-gully (> 54.1%). The large contribution of gullies indicated that the main erosion agents were streamflow from rainstorm events and gravity. Coal mining also had a significant impact on contribution of sediment sources, especially for slopes. Since 1987, mining began to change the structure of hills in this region, leading to slope fissures, collapse, and landslides at junctions where gullies meet slopes, which increased the risk of slope erosion. This has caused an increase in sediment from slopes bare of sand distributed under condition of continues implementation of soil conservation measures, which converted sloping cropland into grassland or forest. Further studies are necessary to gain better insight into sediment transport and deposition within such complex environments, as well as to distinguish between the effects of multiple erosion agents. |
| WOS关键词 | SOURCE FINGERPRINTING INVESTIGATIONS ; MULTIPLE COMPOSITE FINGERPRINTS ; HYPER-CONCENTRATED FLOW ; SUSPENDED SEDIMENT ; PARTICLE-SIZE ; CHECK-DAMS ; SOURCE DISCRIMINATION ; GULLY EROSION ; FINE SEDIMENT ; YELLOW-RIVER |
| 资助项目 | National Natural Science Foundation of China[41671281] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000580657200002 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156569]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Mingyi |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiaqiong,Yang, Mingyi,Zhang, Fengbao,et al. Revealing soil erosion characteristics using deposited sediment sources in a complex small catchment in the wind-water erosion crisscross region of the Chinese Loess Plateau[J]. GEODERMA,2020,379:13. |
| APA | Zhang, Jiaqiong,Yang, Mingyi,Zhang, Fengbao,Tang, Yao,Wang, Xiaotong,&Wang, Yongji.(2020).Revealing soil erosion characteristics using deposited sediment sources in a complex small catchment in the wind-water erosion crisscross region of the Chinese Loess Plateau.GEODERMA,379,13. |
| MLA | Zhang, Jiaqiong,et al."Revealing soil erosion characteristics using deposited sediment sources in a complex small catchment in the wind-water erosion crisscross region of the Chinese Loess Plateau".GEODERMA 379(2020):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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