Lake area changes in the middle Yangtze region of China over the 20th century
Lake area changes in the middle Yangtze region of China over the 20th century
复制标题
20世纪中国长江中游地区湖泊面积变化
DOI：
10.1016/j.jenvman.2010.12.007
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发表时间：
2011-04-01
影响因子：
8.7
通讯作者：
Wei, Xian-hu
中科院分区：
文献类型：
--
作者：
Du, Yun;Xue, Huai-ping;Wei, Xian-hu
位于长江中游的江汉平原和洞庭湖区以其丰富的淡水湖而闻名。由于自然原因和人类活动，这些湖泊在数千年的时间里经历了大小和数量的变化。特别是在20世纪，该地区的淡水资源发生了巨大的变化。本文对长江中游近百年来的湖泊演变进行了追溯和分析。使用地理信息系统绘制面积超过0.1公里(2)的湖泊地图。从不同时期的水系地图、地形图、历史地图和遥感图像中获取和整合数据。结果表明，虽然湖泊的数量在过去的一个世纪里变化不大，但湖泊面积却急剧减少了58.06%。文章还探讨了可能导致湖泊面积减少的自然过程和人类活动。结果表明，湖泊总面积的减少似乎与长江中游的快速围垦时期相吻合。此外，不受控制的填海造地活动可能会增加湖泊中的沉积物沉积，从而进一步缩小湖泊的面积。湖泊面积的减少直接影响防洪，对环境和人类生命财产产生负面的生态影响。(C)2010爱思唯尔有限公司。保留所有权利。
The Jianghan Plain and the Dongting lake area, located in the middle reaches of the Yangtze River are famous for their abundant freshwater lakes. The lakes have undergone changes in size and number over thousands of years due to natural causes and human activities. The 20th century particularly, witnessed dramatic changes in the freshwater resources of this region. This paper traces and analyzes lake evolution in the middle reaches of the Yangtze River over the past century. Lakes greater than 0.1 km(2) in size are mapped using Geographic Information System. Data is acquired and integrated from drainage network maps, relief maps, historical maps and remotely sensed images for different time periods. The results indicate that while there has been little change in the number of lakes over the past century, the lake area has experienced a dramatic decrease of 58.06%. The paper also examines the natural processes and human activities that may have contributed to the decrease in lake area. The results show that the decrease in total lake area appears to coincide with periods of rapid land reclamation in the middle reaches of the Yangtze River. Moreover, uncontrolled land reclamation activities can create an increase in sediment deposition in lakes thereby further reducing the lake size. Reduction of the lake area directly affects flood-control and has a negative ecological impact on the environment and on human life and property. (C) 2010 Elsevier Ltd. All rights reserved.