| Dynamic changes of sediment load in the middle reaches of the Yellow River basin, China and implications for eco-restoration | |
| Yue, Xiaoli1; Mu, Xingmin1,2,3,4; Zhao, Guangju2,3,4; Shao, Hongbo1,3,4,5,6; Gao, Peng2,3,4; Mu, XM (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China. xmmu@ms.iswc.ac.cn; shaohongbochu@126.com | |
| 发表期刊 | ECOLOGICAL ENGINEERING
 |
| ISSN | 0925-8574 |
| 2014-12-01 | |
| 卷号 | 73页码:64-72 |
| 关键词 | The Yellow River Sediment Load Abrupt Changes Human Activities Soil-water Conservation |
| DOI | 10.1016/j.ecoleng.2014.09.014 |
| 产权排序 | [Yue, Xiaoli; Mu, Xingmin; Shao, Hongbo] Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China; [Mu, Xingmin; Zhao, Guangju; Gao, Peng] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China; [Mu, Xingmin; Zhao, Guangju; Shao, Hongbo; Gao, Peng] Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China; [Mu, Xingmin; Zhao, Guangju; Shao, Hongbo; Gao, Peng] Minist Water Resources, Yangling 712100, Peoples R China; [Shao, Hongbo] Chinese Acad Sci, Key Lab Coastal Biol & Resources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China; [Shao, Hongbo] Jiangsu Acad Agr Sci, Nanjing 210014, Jiangsu, Peoples R China |
| 作者部门 | 海岸带生物学与生物资源利用所重点实验室 |
| 英文摘要 | Abrupt reduction of the sediment load in the middle reaches of the Yellow River has extracted much attention during the past several decades due to global climate changes and intensive human activities. This paper investigates the spatial and temporal variations of annual sediment load in the section between Hekouzhen and Longmen in the middle reaches of the Yellow River basin from 1962 to 2009 by using annual observations at 21 hydrological gauging stations (4 mainstream and 17 tributaries stations), by making use of Mann-Kendall test and simple linear regression for trend detection, and the sequential cluster analysis method and Student's t test for changing point detection. The results suggest that sediment load from both mainstream and tributaries show significant decreasing trends at confidence level of 0.01. Evident abrupt changing points are detected around 1970s for most stations, but for Toudaoguai station and Fugu station are found in the mid-1980s, which are mainly attributed to the operation of Longyangxia Dam. In addition, abrupt changes in the sediment series at some stations from the tributaries were found around the late 1990s, this situation may be resulted from the "Green for Grain" project launched in 1999. Sediment budget analysis indicates that the 17 tributaries contributes 70.60% sediment load to the whole research area, which suggests that the majority sediment load contribution to He-Long region is from these tributaries. The comparison among three mainstream sections implies that the sediment is mainly from Wubao-Longmen section. And contribution of tributaries in each mainstream section is mainly from Huangfuchuan River, Kuye River, Wuding River and Yan River. The reduction of the sediment load is mainly caused by human activities especially soil and water conservation projects (such as afforestation, terraces, reservoirs and dams). In summary, the results in this study provide a further evidence for a more exact sediment source region and implementing soil and water conservation measures more effectively in the middle reaches of the Yellow River basin, China. (C) 2014 Elsevier B.V. All rights reserved.; Abrupt reduction of the sediment load in the middle reaches of the Yellow River has extracted much attention during the past several decades due to global climate changes and intensive human activities. This paper investigates the spatial and temporal variations of annual sediment load in the section between Hekouzhen and Longmen in the middle reaches of the Yellow River basin from 1962 to 2009 by using annual observations at 21 hydrological gauging stations (4 mainstream and 17 tributaries stations), by making use of Mann-Kendall test and simple linear regression for trend detection, and the sequential cluster analysis method and Student's t test for changing point detection. The results suggest that sediment load from both mainstream and tributaries show significant decreasing trends at confidence level of 0.01. Evident abrupt changing points are detected around 1970s for most stations, but for Toudaoguai station and Fugu station are found in the mid-1980s, which are mainly attributed to the operation of Longyangxia Dam. In addition, abrupt changes in the sediment series at some stations from the tributaries were found around the late 1990s, this situation may be resulted from the "Green for Grain" project launched in 1999. Sediment budget analysis indicates that the 17 tributaries contributes 70.60% sediment load to the whole research area, which suggests that the majority sediment load contribution to He-Long region is from these tributaries. The comparison among three mainstream sections implies that the sediment is mainly from Wubao-Longmen section. And contribution of tributaries in each mainstream section is mainly from Huangfuchuan River, Kuye River, Wuding River and Yan River. The reduction of the sediment load is mainly caused by human activities especially soil and water conservation projects (such as afforestation, terraces, reservoirs and dams). In summary, the results in this study provide a further evidence for a more exact sediment source region and implementing soil and water conservation measures more effectively in the middle reaches of the Yellow River basin, China. (C) 2014 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | Environmental Sciences & Ecology ; Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | YANGTZE-RIVER ; WORLDS RIVERS ; DISCHARGE ; STREAMFLOW ; IMPACTS ; TRENDS ; OCEAN ; FLUX ; MISSISSIPPI ; DAM |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Engineering |
| WOS记录号 | WOS:000347018400009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8521 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 通讯作者 | Mu, XM (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China. xmmu@ms.iswc.ac.cn; shaohongbochu@126.com |
| 作者单位 | 1.Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 4.Minist Water Resources, Yangling 712100, Peoples R China 5.Chinese Acad Sci, Key Lab Coastal Biol & Resources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China 6.Jiangsu Acad Agr Sci, Nanjing 210014, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue, Xiaoli,Mu, Xingmin,Zhao, Guangju,et al. Dynamic changes of sediment load in the middle reaches of the Yellow River basin, China and implications for eco-restoration[J]. ECOLOGICAL ENGINEERING,2014,73:64-72. |
| APA | Yue, Xiaoli.,Mu, Xingmin.,Zhao, Guangju.,Shao, Hongbo.,Gao, Peng.,...&shaohongbochu@126.com.(2014).Dynamic changes of sediment load in the middle reaches of the Yellow River basin, China and implications for eco-restoration.ECOLOGICAL ENGINEERING,73,64-72. |
| MLA | Yue, Xiaoli,et al."Dynamic changes of sediment load in the middle reaches of the Yellow River basin, China and implications for eco-restoration".ECOLOGICAL ENGINEERING 73(2014):64-72. |
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