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Spatiotemporal distribution and historical evolution of polders in the Dongting Lake area, China
Wang J. L.; Gao, M. X.; Guo, H. H.; Chen, E. Y.
Source PublicationJournal of Geographical Sciences
2016
Volume26
Issue11
Pages1561-1578
KeywordDongting Lake polder spatiotemporal distribution landscape pattern evolution model central yangtze restoration responses impact
AbstractDongting Lake is the largest lake in the middle reaches of the Yangtze River in China. For centuries, people inhabiting the Dongting Lake area have been reclaiming land and constructing dams for flood resistance, agricultural production, and rural settlement, forming geographical entities known as polders. In this study, the regional spatial distributions of polders in the Dongting Lake area in 1949, 1998, and 2013 were obtained using historical maps and modern remotely sensed data, revealing changes since the establishment of the People's Republic of China. Nanxian County was then selected to demonstrate polder changes at the county level, because it has undergone the most dramatic changes in the area. Different polder change models for the Datonghu, Yule, and Renhe polders were analyzed for eight periods: 1644 (the early Qing Dynasty), 1911 (the late Qing Dynasty), 1930 (the Republic of China), 1949 (the People's Republic of China), 1963, 1970, 1998, and 2013. Three resulting polder evolution models are: 1) reclaiming polders from lakes, 2) integrating polders by stream merging, and 3) abandoning polders for flood release. The polder evolution models demonstrate the wisdom of local people in using land resources according to the specific regional conditions. Throughout their long-term historical evolution, the spatial distribution of polders in the Dongting Lake area tended to be homogeneous, and the degree of human disturbance tended to be stable. However, a shift occurred, from pure polder area growth or removal to more comprehensive management and protection of the regional environment.
Indexed BySCI
Language英语
ISSN1009-637X
DOI10.1007/s11442-016-1344-6
Citation statistics
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/43291
Collection历年回溯文献
Recommended Citation
GB/T 7714
Wang J. L.,Gao, M. X.,Guo, H. H.,et al. Spatiotemporal distribution and historical evolution of polders in the Dongting Lake area, China. 2016.
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