Analysis of Farmland Land Area Measurement and Land Utilization
All of our agriculture is built on land, so it is very important to determine the use of farmland and the area of ​​farmland. The farmland acre measurement instrument can help us to measure the area of ​​farmland. The farmland acre measurement instrument uses GPRS technology to measure and analyze irregular land area, helping us to better manage the land and realize the scientific planning and utilization of land.
Research on the current status of land use is the basic content of land use, and it is an indispensable foundation and research link for future land use (land use rationalization) research. It mainly includes land use classification research, land use status survey, land use status system analysis and evaluation, and so on.
(1) Land use classification In the current land use research, land use classification is usually conducted to conduct land use surveys or to conduct unified land management. Starting from the current status of land use, according to the different land use, land use, etc., according to certain Hierarchical hierarchies divide the state or area of ​​land use into a series of different categories. The types of land use classified can reflect the ways and results of human use of land and its transformation, and reflect the use and use of land (functions). In 2007, China first issued the National Standard for Land Use Classification, but it still needs further study and improvement.
(2) Land use status survey Land use status survey is a survey and research work to find out the area, distribution and utilization status of various land use types. According to the depth and fineness of the survey, it can generally be divided into two types: detailed investigation and general survey. In addition, there are regular or irregular land use monitoring for key areas or hot spots. The survey of land use status generally includes the establishment of a land use classification system, the conduct of field surveys and interpretation of remote sensing data, the preparation of land use status maps, the measurement of various land areas, the establishment of a database of land use status, and the preparation of land use status survey reports. Link. At present, the “3S†technology, led by remote sensing technology, is commonly used in the survey of land use status and land use surveys have entered a modern stage. Starting in July 2007, China’s second national land survey is a large-scale systematic land use survey in the new era in China. The survey will greatly promote the development of land use research in China.
(3) Analysis and Evaluation of Current Land Use System Based on the survey of land use status, it is very important to carry out analysis and evaluation of land use status system. Through analysis and evaluation, we must clarify the basic characteristics of land use status and utilization benefits, reveal the rationality and irrationality of current land use, summarize and refine the main experience and lessons of land use, and provide a basis for future land use research. Basic basis.
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