Construction Of A Permanent Demarcation Of Basic Farmland And The Database Is Based On GIS

Agriculture is the foundation of the social and economic development, farmland is the important guarantee of agricultural production, the basic farmland is the essence part of cultivated land, is the foundation of the national food production. China’s large population, less arable land resources, uneven geographical distribution of resources, per capita cultivated land resources is lower than the world average. In order to solve the good people much less sharp contradictions, countries to protect arable land in our country’s basic national policy, require long-term implementation, execution, and permanent basic farmland demarcated, the strictest cultivated land protection.In this context, as a national protection of basic farmland yecheng county demonstration county, to carry out work of permanent basic farmland demarcated. In yecheng county land use overall planning and yecheng county of permanent basic farmland demarcated results as the foundation, according to the kashgar region from yecheng county of basic farmland indexes, and USES the qualitative and quantitative analysis method, the amount of basic farmland, the designation and database construction layout research. The main content of the thesis are as follows:(1)This article selects the natural conditions, location conditions, radiation village three decision-making factors, a total of 11 indexes, constructing evaluation index system of basic farmland, USES the analytic hierarchy process(AHP) to determine the index weight, the evaluation factor value assignment and standardizing, and comprehensive value calculated in the MATLAB, finally using comprehensive sorting method, will be ordered by the comprehensive value, determine the cultivated land comprehensive quality and in accordance with the quality grades of cultivated land comprehensive quality score.(2)In yecheng county, for example, the empirical study of permanent basic farmland demarcated. To base on the current situation of basic farmland in analysis, made clear the base period in the amount of basic farmland and space layout. Cultivated land comprehensive quality figure, new construction with maps and base of basic farmland map spatial superimposed analysis, draw the base period to occupy basic farmland to poor quality of cultivated land and construction. Then combining yecheng county land use overall planning of construction land spatial layout and the cultivated land comprehensive quality figure, high quality and good landscape of farmland to delimit, determine the quantity, quality and spatial distribution of basic farmland.(3)Developing database-building program to build a database framework, building a database of basic farmland elaborate basic steps to establish a database of basic farmland, signed letters of responsibility, the establishment of signs, strict protection of basic farmland protection areas designated.In summary, this paper Yecheng permanent demarcation of basic farmland subject, based on the theoretical study of the actual number of basic farmland, quality and spatial distribution of basic farmland and the establishment of a database, a clear responsibility to protect, the establishment of protected brand proposed basic farmland protection specific methods, measures for the management of basic farmland Yecheng provides guidance.