Impacts of eco-restoration on suspended sediment load in the upper Yangtze River of China
语种英语
He, Xiubin1; Wei, Jie2
2012
会议录名Erosion and sediment yields in the changing environment (IAHS Publ. 356)
会议录编者/会议主办者IAHS
页码29-36
会议名称IAHS international commission on continental erosion symposium
会议日期October 11, 2012 - October 15, 2012
会议地点Chengdu
会议举办国China
产权排序1
摘要Vegetation coverage is of great importance to the ecosystem and plays a key role for soil conservation, runoff and sediment yields. Long-term gauging data indicate that eco-programs in the upper Yangtze basin launched since 1989 have increased vegetation coverage through massive afforestation and soil-water conservation measures. The accumulated planting area of 5.3 million hectares has increased catchment forest coverage from 11% in 1978, to 34% in 2010. The mean annual sediment load of 2.78 × 108t since 1989 is evidently less than that of 5.23 × 108t before 1989 (a 47% reduction). Comparing the vegetation coverage situation and the sediment regime during 1999-2002 to those of 1984-1998, shows that the riverine suspended sediment load decreased 1.10% per 1% increase in forest coverage. Since 2003, the sediment load has sharply declined due to rapid construction of reservoirs in the upper reaches. Copyright © 2012 IAHS Press.
关键词afforestation ecological programmes sediment load soil erosion the upper yangtze river
ISBN号978-1-907161-33-9
ISSN号0144-7815
收录类别EI
EI收藏号Accession number:20133616706404
文献类型会议论文
条目标识符http://ir.imde.ac.cn/handle/131551/24078
专题山地表生过程与生态调控重点实验室
通讯作者He, Xiubin
作者单位1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China;
2.Geography and Tourism College, Chongqing Normal University, Chongqing, 400047, China
第一作者单位中国科学院水利部成都山地灾害与环境研究所
通讯作者单位中国科学院水利部成都山地灾害与环境研究所
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He, Xiubin,Wei, Jie. Impacts of eco-restoration on suspended sediment load in the upper Yangtze River of China[C]//IAHS,2012:29-36.
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