Research Method To Designate Cultivated Land As Basic Farmland

By reading lots of books about farmland protection, basic land demarcated, basic land protection and management literature at home and abroad, and the National Land Use Plan, the basic farmland demarcated technical regulations, policies and technical documentation, this paper take Daxing district in Beijing for example, first employ the nature grade, utilization grade, economic grade and classification of agricultural land to get a preparatory designation plan, then use the obtained designation results to overlay with buffer of residents and traffic to estimation which level of agricultural land is more suitable for basic farmland and get the final designation plan.And then building a comprehensive evaluation index system which is based on classification and gradation. This paper utilize give weight by subjective and objective weighting method, and use combination factor to sort5191of agricultural land in Daxing district in order to determine basic farmland in Daxing District. At the same time, this paper use ArcGIS9.2to establishment of arable land buffer, and buffer arable land overlay analysis to obtain a block of contiguous values in the processing of arable land contiguous. This research taking full advantage of the results about the classification and gradation of agricultural land in Daxing District for basic farmland selecting.The designating method not only in line with the guiding ideology of basic farmland "designated priority program bad, paddle do not plan far, plan the entire program to zero" but also ensure the quality focus of basic farmland, applications to agricultural land classification and grading results, conducive to scientific and reasonable delineation of basic farmland, to provide technical guidance for the protection of basic farmland.