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Editor to share with you how the GIS development of administrative division data in China is like, I believe most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!

Administrative division data, in the current display system, the use of more and more frequency, provincial, municipal, county level, etc., show the scope of administrative division, or show the administrative center of the city, reflect the geographic information.

Especially after the outbreak of this epidemic, administrative division data are used in the epidemic statistics of each website. In order to reflect the accuracy of administrative data, according to national standards, the change of administrative division data of general provinces, cities, districts (counties) is relatively small, especially the change of division scope is also relatively small, and the administrative division code is also set correspondingly. You can refer to the data of the National Bureau of Statistics and the Civil Affairs Bureau. The address of the administrative division data of the National Bureau of Statistics: updated every few years, the update frequency is high in recent years, the name and code of the administrative region are available, at least to the community or village level.

Http://www.stats.gov.cn/tjsj/tjbz/tjyqhdmhcxhfdm/

The administrative division data address of the Civil Affairs Bureau: the administrative division codes at and above the county level can be seen, and the codes below the county level mainly reflect the changes, but the update frequency of the Civil Affairs Bureau is relatively high.

Http://www.mca.gov.cn/article/sj/xzqh/1980/

Before using administrative divisions, we should first confirm that there are at least few changes at the provincial and municipal levels. When a city uses administrative division data at the county level, it also needs to be based on the local actual situation, because there are some local management areas or functional areas that are also regarded as other data at the county level, which also needs to be calculated.

On Gaode and other Internet maps, the administrative division range data of provinces, cities, and counties can be obtained according to the API developed by the map, but they are all streamlined to a certain extent, and there are also some errors in some places. Township-level data, you need to search and download from the Internet, download to compare whether the name of the township of the Bureau of Statistics can match, different years, the data still have changes. Although some map downloaders have been used to download the zoning data of villages and towns, it is found that some areas are mixed data, and some are data of previous years, especially in the more developed cities. this change is generally not responded to, and this should be paid attention to in use.

Township more accurate data, generally in the local units, it is best to be able to coordinate, there is no vector layer data, at least a map can be sketched. The above is all the contents of the article "what is it like for GIS to develop administrative division data in China". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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