长三角行政区划变革信息数据集(1999-2021年)

该数据集为长三角行政区划变革信息数据集，时间范围为1999-2021年。基于中国人民共和国民政部全国行政区划信息查询平台，分别整理长三角地区三省一市县级以上行政区划变更情况，以行政区划变更公布时间为序。该数据总量为53.1KB，数据为excel文件格式。

This dataset is the Yangtze River Delta Administrative Division Reform Information Dataset, spanning the period from 1999 to 2021. It is developed based on the National Administrative Division Information Query Platform of the Ministry of Civil Affairs of the People's Republic of China, by respectively organizing the changes of administrative divisions at and above the county level in the three provinces and one municipality directly under the Central Government of the Yangtze River Delta region, and sorted in chronological order according to the announcement dates of each administrative division change. The total size of the dataset is 53.1 KB, and it is provided in Excel file format.