Study on Application of 3S Technology in Land-Use Change Discover

Land resources are essential to human survival. To ascertain the actual situation of land resources and information of land change serves as a basis for overall planning of land use and macroscopic decision making on land resources. Now widely used methods of survey affect by a number of factors, it is difficult to ascertain the exact space location of changed map spot. In recent years the integration of RS, GIS and GPS (3s) has become a very important research field in the land resource administration. This article based on the traditional analysis methods of land-use changes unified the 3S technology characteristic and the land utilization present situation has discussed based on the 3S technology land-use change investigation technical route.