Research on Land Change Survey Results Based on ArcGIS Overlay Analysis Function
In accordance with the unified deployment of the nation,province and city,a county organized the implementation of the land change survey project in 2021. This paper describes the operational methods and technical processes of the county-level survey unit's land change survey work in 2021. By using ArcGIS overlay analysis function,the results of the land change survey data in the past two years are compared,the change of key land types is obtained,the causes of the change are analyzed,and suggestions on land use and protection are put forward. It provides the basic data support for the rational and intensive use of land in this county.
land change surveyoverlay analysisland type change
NETL
NSTL
万方数据
