中国1:25万湖泊变化数据集(2005-2020年)
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该数据集为中国1:25万2005年至2020年的湖泊变化数据,数据在2005-2006年湖泊数据、2020年湖泊数据的基础上,先对数据进行union操作,再对比相关数据,筛选出2005-2006年为湖泊,2020年无湖泊的部分为湖泊减少部分数据,2005-2006年无湖泊,2020年为湖泊的部分为新增湖泊部分数据。包含了湖泊代码、湖泊名称、所属省份、湖泊面积、一级流域、二级流域、所属湖区等指标。 数据内容包含了2个shp矢量文件,lake增加.shp,lake减少.shp。
This dataset is lake change data of China at a scale of 1:250,000 from 2005 to 2020. Based on the lake datasets of 2005-2006 and 2020, a union operation is first performed on the data, followed by comparative analysis to screen out two subsets of data: the parts that were lakes in 2005-2006 but have no lakes in 2020 are classified as lake decrease data, while the parts that had no lakes in 2005-2006 but became lakes in 2020 are classified as newly added lake data. This dataset includes indicators such as lake code, lake name, affiliated province, lake area, first-level watershed, second-level watershed, and affiliated lake region. The data package contains two shapefile vector files: lake_increase.shp and lake_decrease.shp.




