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题名: Reduced sediment transport in the Yellow River due to anthropogenic changes
作者: Wang, Shuai; Fu, Bojie; Piao, Shilong; Lu, Yihe; Ciais, Philippe; Feng, Xiaoming; Wang, Yafeng
刊名: NATURE GEOSCIENCE
出版日期: 2016-01
卷号: 9, 期号:1, 页码:38-+
DOI: 10.1038/NGEO2602
部门归属: 城市与区域生态国家重点实验室
英文摘要: The erosion, transport and redeposition of sediments shape the Earth's surface, and affect the structure and function of ecosystems and society(1,2). The Yellow River was once the world's largest carrier of fluvial sediment, but its sediment load has decreased by approximately 90% over the past 60 years(3). The decline in sediment load is due to changes in water discharge and sediment concentration, which are both influenced by regional climate change and human activities. Here we use an attribution approach to analyse 60 years of runoff and sediment load observations from the traverse of the Yellow River over China's Loess Plateau - the source of nearly 90% of its sediment load. We find that landscape engineering, terracing and the construction of check dams and reservoirs were the primary factors driving reduction in sediment load from the 1970s to 1990s, but large-scale vegetation restoration projects have also reduced soil erosion from the 1990s onwards. We suggest that, as the ability of existing dams and reservoirs to trap sediments declines in the future, erosion rates on the Loess Plateau will increasingly control the Yellow River's sediment load.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35648
Appears in Collections:城市与区域生态国家重点实验室_期刊论文

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