Study On 3S-Based Land-use Change Survey And Land-use Change Survery Information System

Having a large population, there are few cultivated lands, it is fundamental realities of the country of our country that the cultivated land is reserve and insufficient. Strengthenning land management, it is the slip running a country of our country to protect the cultivated land conscientiously. The nationwide land utilizes the current situation to investigate that has already been over basically, the work in the future of all parts will mainly be investigated and be counted by land change. The land utilizes the change to be investigated to be the most basic most important link in the land management, One complicated job extremely, need and deal with a large amount of data, how raise land information efficiency and quality of change, Very important in information construction to land management.The combination of 3S technology is the important direction of the present space information technical development, Have wide application prospects in land management. This text directs against the question that the traditional land utilizes the change to investigate that exist in the method , Combine 3S technological characteristic and land utilize current situation probe into taking GIS as the core 3 S technology utilize change application of the investigation in land, Concrete to explain based on 3S technology land utilize technological route and 3S technology that change investigate utilize and alter and investigate every technology of link in land.Utilize the change to investigate to the land at present that the data characteristic of trend of work and business demand carry on deep analysis, Discussion change kind, area of surface feature make up, topological relation, right belong to concern and trends related relation, Carry on detailed analysis to different kinds of change course of surface feature , regard this as foundation this combine Jiangsu Province land utilize change investigate construction of information system, Carry on land utilize change investigate overall design of information system, GIS software platform dispose and systematic development of function, Have realized tentatively that the land based on client / server utilizes the change to investigate the information system.