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作 者:闫芳芳[1] 杨煜达[1] 满志敏[1] Yan Fangfang;Yang Yuda;Man Zhimin(Center for Historical Geographical Studies of Fudan University ,Shanghai, 200433)
机构地区:[1]复旦大学历史地理研究中心
出 处:《中国历史地理论丛》2019年第3期46-51,共6页Journal of Chinese Historical Geography
基 金:国家重点研发计划“全球变化研究及应对”(2018YFA0605602);教育部人文社会科学重点研究基地重大项目(16JJD770010)
摘 要:基于晚清舆图、民国时期的大比例尺地图和现代测绘地图、卫星影像等资料,提出利用GIS软件提取晚清舆图中地表水体的数字化方案。通过6个时间断面(1875年、1918年、1959年、1978年、2000年、2013年),复原了近一百多年来淀泖湖荡群水域面积的变化过程。结果表明,1875年以来,淀泖湖荡群水域面积持续萎缩,而以1959-1978年间最为严重。淀泖湖荡群水域面积缩小的直接原因是20世纪60-70年代上海郊县水利体系的重构,导致淀泖湖荡群滞纳汛期积水的重要性降低。The area changing of Dianmao Wetlands during past 140 years was reconstructed in this researching. A number of graphic materials, including the maps and atlas of late Qing Dynasty, largescale maps of the Republic of China period, modern maps, satellite images and other data or materials were used in reconstructing the water range changing. This article proposes a digitization scheme of water extraction based on the old maps by GIS methods. Through the water area changing processing by 6 time-sections (AD1875, 1918, 1959, 1978, 2000 and 2013), the areas changing series of the Dianmao wetlands during past about 140 years was reconstructed. The processing reveals that the area of the Dianmao wetlands has been shrinking continuously since AD1875 , especially from 1959 to 1978. The direct reason for the shrinkage of the water area of the Dianmao wetlands is that the local water conservancy system was reconstructed in Shanghai from 1960s to 1970s, and the importance of Dianmao wetlands in flood reduction was weaken.
分 类 号:K928[历史地理—人文地理学]
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