The Application Of 3S Technology In The Rural Farmland Protection Investigation

Strict protection of cultivated land is China's basic national policy, adherence to the red line of 18 million mu of cultivated land, directly related to people's basic needs, food security and social stability. To be able to land and resources to provide a reference value of the land with considerable information and data, to Chengdu, Chongqing and other places for the pilot of the "farmland protection survey and data warehousing project" soon started up.Survey of rural land protection, property rights reform in rural areas, to identify land-use conditions, control of urban and rural land use potential and status of unused land is urban and rural areas and promotion of economical and intensive land-based sites; is taking a new industrialization and urbanization, achieve sound and rapid development of land to provide accurate information assurance; is to implement the State Council's decision to deepen reform and strict land management is to improve administrative capacity of government and land resources management needs; is scientific planning and rational use of effective protection of land resources and implement the most stringent farmland protection system, the fundamental means of .With the rise of 3S technology, more and more people have begun to 3S technology to agriculture, such as an inventory of agricultural resources, accounting, assessment and monitoring; crop yield assessment and growth monitoring; precision agricultural demonstration; agricultural ecological environment background ; land resources and land value studies and others. 3S technology to carry out land use to protect the investigation, is one example of these many applications, it is based on RS and GPS as the means to carry out preliminary investigations, using GIS land information database constructed to achieve the verification, management and research. Through this method of cultivated land changes in time and grasp the information quickly take measures to defend the red line of 18 million mu of arable land.Research by the project, and finally we have submitted Sanjiang town land department to the information database, which is easy to query, update, maintain and strictly confidential, and many other advantages, while the second tune the database and the database match also reached 90 degrees %, and is a completely credible overall planning for land systems.This article is based on 3S techniques, dependent 3S technology will ultimately be submitted to the Sanjiang town master database for the Chengdu base of rural land real data, establish and improve information management system and land survey, registration system provides strong support approval of construction land in Chengdu such as land management work to provide accurate and reliable basis for maps, data, and other basic data, to Chengdu, social and economic sustainable development and macroeconomic regulation and control of land is of great significance. Meanwhile, a survey of land protection in rural areas of Chengdu pilot to carry out national land conservation for future research play a key role in the guidance. Therefore, this can be carried out as a future national survey of basic data protection of farmland use.