洞庭湖区堤垸时空分布与历史演变分析（英文）

编号 zgly0001584615

文献类型 期刊论文

文献题名 洞庭湖区堤垸时空分布与历史演变分析（英文）

作者 王卷乐  高孟绪  郭海会  陈二洋 

作者单位 StateKeyLaboratoryofResourcesandEnvironmentalInformationSystem  InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  JiangsuCenterforCollaborativeInnovationinGeographicalInformationResourceDevelopmentandApplication 

母体文献 Journal of Geographical Sciences 

年卷期 2016年11期

年份 2016 

分类号 TV871-09 

关键词 DongtingLake  polder  spatiotemporaldistribution  landscapepattern  evolutionmodel 

文摘内容 Dongting 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.