Study On The Layout Optimization Of New Rural Community At County Level Based On GIS

China is an agricultural country, agriculture is the mainstay of the economy, the countryside is the mainform of farmers live. Since the reform and opening up, the central government attaches great importance tothe countryside, and farmers’ living standards have improved significantly. However, with the accelerationof urban-rural integration process, the problems of the rural settlements have become increasinglyprominent, such as the spatial layout of rural settlements scattered, social infrastructure is weak, publicservice resources shortage, and so on. These problems have seriously affected the rural industrialization,urbanization and modernization process, the problems caused by traditional rural settlements has attractedpeople’s attention, become the focus of attention. In order to better promote rural development, the newrural community emerges as the times require, and quickly became an important breakthrough point of theconstruction of the local governments to promote new urbanization.The new rural community construction is a pioneering work, the study of the new rural community inour country is not only a new academic field, it is also an important practice in the field of economic andsocial development of transition at the present stage. Now, the construction of new rural community hasbecome one of the focus of attention. Through the new rural community construction, can effectively guidethe population gathered moderate, balance allocation of public services, improve people’s living standards,narrow the gap between urban and rural areas.The new rural community layout optimization is the premise and basis of the new rural communityconstruction work. Due to the lack of scientific planning and layout, parts of the new rural communitylayout is unreasonable. In this paper, taking Taiqian County of Henan Province as an example, according to the current conditions and geographic characteristics of different rural settlements, conduct the study of thespatial layout of new rural communities, and thus make the layout of new rural communities is morecomprehensive, systematic, long-term and continuity, providing theoretical support and scientific guidancefor urbanization, in addition also having a certain significance for other similar areas.Contents and the main results of this paper are as follows:1. Study on the distribution of rural settlements from the perspective of landscape ecology.The paper, using the method of landscape pattern index, selected three indicators from the size, shape,layout features to research distribution of the rural settlements. Through the study found part of ruralsettlements patches of lower density, fragmentation degree is high, the layout of rural settlements scattered,seriously affecting urbanization development of Taiqian county.2. The evaluation and classification of rural residential comprehensive strength.On the basis of comprehensive strength of rural settlements, the present situation of rural settlementswere analyzed. The paper selected indicators from the aspects of production, living and social, constructingevaluation indicator system for comprehensive strength of rural settlements and evaluation indicators weredivided into general factors and limiting factors. And the paper, based on ARCGIS technology, using theAHP method, researched on rural settlements comprehensive strength. And the value of rural settlementscomprehensive strength were taken as the standard of classification, providing a theoretical basis forthe optimization of the layout of the new rural community.3. Select the central village as the development poles of new rural communities and make sure thescope of the new rural communities, to optimize the layout of the new rural communities.(1) Select the central village as the development poles of new rural communities.The31central villages were selected according to the value of comprehensive strength of the rural settlements, combined with the principle of selecting central villages, using the selected method of grading.According to the characteristics of the central villages, the central villages can be divided into fourcategories: the seat of township government, industrial gathering area, township following, and specialcenter. Corresponding to the four kinds of new rural communities: the seat of government communities,industrial agglomeration communities, township communities, and special communities.(2) Determine the scope of the new rural communities.Based on the study of the expanded breaking point model, the paper developed the method to determinethe boundaries of the central villages using GIS. The paper used expanded breaking point model to buildthe weighted Voronoi diagram of the selected31central villages, and each village’s weight equals to thesquare root of its comprehensive strength value. And the scope of the central villages was initiallyidentified based on weighted Voronoi diagram. Considering the integrity of the villages, the scope wasadjusted to determine the final scope, and the layout optimization scheme the layout of the new ruralcommunity of Taiqian was determined.This paper used the expanded breaking point model in determining the boundaries of the new ruralcommunities for the first time, rational planning the layout of new rural communities. Thereby enabling thedistribution of new rural communities more comprehensive, systematic, theoretical and providing supportand scientific guidance for the new urbanization.