Key drivers of changes in the sediment loads of Chinese rivers discharging to the oceans
文献类型：期刊论文
| 作者 | Liu, Cheng3,4; He, Yun3; Li, Zhongwu5; Chen, Jia1,6; Li, Zhijing2 |
| 刊名 | INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 36期号:6页码:747-755 |
| 关键词 | Sediment load Dam construction Soil and water conservation Catchment disturbance Sand mining Climate change |
| ISSN号 | 1001-6279 |
| DOI | 10.1016/j.ijsrc.2020.05.0051001-6279/ |
| 通讯作者 | Liu, Cheng(chliu@iwhr.com) |
| 英文摘要 | The magnitude and variation of the sediment loads transported by rivers have important implications for the functioning of river systems and changes in the sediment loads of rivers are driven by numerous factors. In this paper, the key drivers of changes in the sediment loads of the major rivers of China are identified by reviewing recent studies of changes in their sediment loads. Except for the Songhua River, which presents no clear tendency of change in runoff or sediment load, nearly all the major rivers of China are characterized by an apparent decline in annual sediment load. The total annual sediment load of major Chinese rivers transported to the coast decreased from 2.03 billion t/yr during the period 1955 -1968 to 0.50 billion t/yr during the period 1997-2010. The primary drivers of changes in the sediment loads of the rivers are dam construction, implementation of soil and water conservation measures, catchment disturbance, agricultural practices, sand mining and climate change. Examples drawn from Chinese rivers are used to demonstrate the importance of these drivers. Construction of a large number of reservoirs in the Yangtze River basin represents the primary driver for the reduced sediment load of the Yangtze River. The implementation of soil and water conservation programmes is one of the key drivers for the sharp decline in the sediment load of the Yellow River. Catchment disturbance explains why the reduction of the sediment load of the Lancang-Mekong River at the Chiang Saen gauging station was much less than that at the Gajiu gauging station upstream. A reduction in sediment load resulting from the expansion of agricultural production may be the main driver for the reduced sediment load of the Huaihe River. The decrease in the sediment load of the Pearl River has been influenced by sand mining activities. Climate change is one of the key drivers responsible for the greatly reduced sediment load of the rivers in the Haihe River Basin. (c) 2020 International Research and Training Centre on Erosion and Sedimentation/the World Association for Sedimentation and Erosion Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | YELLOW-RIVER ; CLIMATE-CHANGE ; SOIL-EROSION ; RUNOFF ; PERIOD ; DECREASE ; YANGTZE ; IMPACTS ; MEKONG ; FLUX |
| 资助项目 | National Key Research and Development Program of China[2017YFC0505400] ; Inter-national Science & Technology Cooperation Program of China[2014DFG72010] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000692555800006 |
| 出版者 | IRTCES |
| 资助机构 | National Key Research and Development Program of China ; Inter-national Science & Technology Cooperation Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165352]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Cheng |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Changjiang River Sci Res Inst, Wuhan 430010, Peoples R China 3.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China 4.Int Res & Training Ctr Eros & Sedimentat, Beijing 100048, Peoples R China 5.Hunan Normal Univ, Coll Resources & Environm Sci, Changsha 410081, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Cheng,He, Yun,Li, Zhongwu,et al. Key drivers of changes in the sediment loads of Chinese rivers discharging to the oceans[J]. INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2021,36(6):747-755. |
| APA | Liu, Cheng,He, Yun,Li, Zhongwu,Chen, Jia,&Li, Zhijing.(2021).Key drivers of changes in the sediment loads of Chinese rivers discharging to the oceans.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,36(6),747-755. |
| MLA | Liu, Cheng,et al."Key drivers of changes in the sediment loads of Chinese rivers discharging to the oceans".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 36.6(2021):747-755. |
入库方式： OAI收割
来源：地理科学与资源研究所
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