Study Of Basic Farmland Plan In Metropolitan Suburbs Areas

Basic farmland planning is an important part of general land use planning.It is a process of designating specific land in the general plan as the basic farmland protection areas. Scientific planning of basic farmland is essential for farmland protection, agriculture stability, sustainable development of local economics and grain security. As special areas, basic farmland in metropolis urban areas has increasingly abundant functions.Different administratives have conflicting concerns over the basic farmland, all of which cause the specialty of its basic farmland plan. Scientific planning of basic farmland in metropolis urban areas will increase local grain security and ecological security, and accelerate local economic devleopment. Therefore, this dissertation takes Daxing district in Beijing as a case to study the basic research methods of basic farmland plan in metropolis urban areas, in order to provide reference for the perfection of farmland planning theories and practical work.This research is under the background of the new round of overrall land use planning. It focuses on the functions of basic farmland in metropolis urban areas. Furthermore it discusses different administrative subjects perceptions, and concerns of the basic farmland. Based on this above, it constructs a theoretical system of basic farmland planning in metropolis urban areas. Through the empirical study of Daxing in Beijing, it arrives at the conclusions below:1) It systematically interprets the functions of basic farmland in metropolis urban areas.Furthermore it discusses the different administrative subjects perceptions and concern of it, so as to construct a basic farmland planning system applicatied to metropolis urban areas. It further improves basic farmland planning system, and provides references to the improvement of farmland planning theories and practical work.2) This dissertation classifies the functions of basic farmland into two categories: basic functions and extensive functions. Basic functions include production function and social security function based upon it. The extensive functions include ecological function, blocking function, etc. These two types of functions are equally important to metropolis urban areas. Meanwhile, different administratives have different concerns over them.3) According to differences of the basic farmland administrative subjects focusing on in Daxing, the dissertation grades and evaluates three aspects of farmland: production power, ecological effect and stability. It also designates their spatial distribution and evaluates relevant attributes.4) The dissertation integrates the three aspects of production power, ecological effect and stability, and ranks by the method of ideal point approximation. It finally defines 31826.85 hm~2 basic farmland, mainly in the southeast of Daxing, with sporadic distribution in the northwest.5) Compared with the basic farmland in last round planning, this plan is more reasonable in quantity, quality and spatial distribution. It can also alleviate the conflict between different administratives and enhance mutual interests.