长三角经济带1：25万湖泊分布数据（2015年）

该数据集为长江经济带三省一市范围内1:25万湖泊空间分布数据，该数据集在全国1:25万基础地理分幅数据基础上，提取面状水系图层信息，随后对分幅数据进行合并处理，并根据长三角经济带行政边界对数据进行裁切整理，再根据基础地理信息要素分类与代码，筛选水系中湖泊属性的数据，最后结合天地图、地形图、网络资料等信息，核实湖泊名称、空间位置等信息，得到了长三角经济带1:25万湖泊空间分布数据。
该数据集包含一个shp矢量数据，长三角lake.shp。

This dataset is 1:250,000-scale spatial distribution data of lakes within the three provinces and one municipality of the Yangtze River Economic Belt. It was developed based on national 1:250,000-scale basic geospatial tiled data: first, polygonal water system layer information was extracted; then the tiled data was merged, clipped and organized according to the administrative boundary of the Yangtze River Delta Economic Belt; subsequently, data with lake attributes was filtered from the water system in accordance with the Classification and Codes for Basic Geospatial Information Elements; finally, information such as lake names and spatial locations was verified using data from Tianditu, topographic maps and online resources, and the final 1:250,000-scale spatial distribution data of lakes in the Yangtze River Delta Economic Belt was obtained. This dataset includes a single shapefile vector dataset, named lake.shp for the Yangtze River Delta Economic Belt.