| Space is the carrier of economic activities.The development of county economy is mainly carried out in the county space.The rationality of the overall spatial structure of a county directly affects the health of the region's economic development.A county area is composed of multiple township areas,so studying the spatial structure of a county area can be started by studying the rationality of the township space structure.Based on the positioning of the leading functions of towns and townships,this paper proposes related spatial optimization suggestions based on the leading functions of townships and towns,combined with the leading functions of towns and townships and the actual situation.The main research contents are:(1)The construction of the index system and the method of positioning the leading function of townships.The functions of the indicator system are divided into two major aspects,namely "state" and "trend".Then the selected indicators reflect the contents of agriculture,non-agriculture,basic security,humanities and ecology.The leading function of each township is determined by scoring the various functions of each township and the actual situation.(2)Discussion on countermeasures and ways to optimize the space of counties and towns under the dominant function positioning.The article takes Nanhua County as an example,combined with the relevant theories and methods discussed in the article,analyzes the current status of the spatial distribution of townships in Nanhua County,studies and determines the leading functions of township development,and selects representative agricultural,industrial and ecological types Each township conducts specific research and proposes a space optimization plan for townships in different counties under different types of leading functions.The following conclusions are drawn through research:(1)Through the spatial analysis of the county area of Nanhua County,this paper finds that there are many problems in the spatial structure of Nanhua County.Thepopulation of villages and towns is generally small,and construction land is wasted.The only permanent residents in the town can reach 30,000 people in Longchuan and Shaqiao.The remaining townships are between 1-2 million.Nanhua County 's The level of construction land percapita in 10 townships far exceeds the national standard of 150 square meters;the number of central villages in Nanhua County is currently too large.The total number of market towns and central villages in all townships except Longchuan Town in Nanhua County The relationship is 1: 11.2.Based on the central area theory,the current ratio of various types of villages and towns is unreasonable.The number of central villages is too large,which is not conducive to the intensive use of land;the fragmentation of the area of villages and towns is more prominent,and the mountainous and semi-mountainous areas of Nanhua County The area occupies 96%,the terrain is high in the northwest,low in the southeast,mountains in the southwest,and hills in the northeast.This is the main objective factor that causes a high degree of fragmentation in the spatial area of Nanhua County;the spatial form of villages and towns in Nanhua County is relatively small,Most of them are linear or band-shaped;the spatial distribution of villages and towns is relatively concentrated,and the settlements of a few townships are relatively discrete.The rural settlements in Nanhua County are based on the Voronoi polygon In the scattered evaluation table,10 townships in Nanhua County,including 8 townships in Longchuan Town,Wujie Town,Hongtupo Town,Shaqiao Town,Tujie Town,Yulu Township,Yijie Township and Wudingshan Township,have CV values greater than64% belong to the cluster distribution state.The CV values of Majie Township and Luowuzhuang Township are between 33% and 64%,both of which are in a discrete distribution state.(2)Through comprehensive analysis of multiple functions of various towns and townships in Nanhua County,four leading functions of comprehensive development,agricultural production,industrial production,and ecological services were identified.It is determined that Longchuan Town is a comprehensive development town,Majie Town,Wujie Town,Yulu Township,Yijie Township,Luowuzhuang Township are agricultural production townships,and Hongtupo Town,Shaqiao Township,andWudingshan Township are industrial production.The townships and rabbit streets are ecological service towns.In general,from the results of the leading functional positioning of 10 townships in Nanhua County,Longchuan Town as a county town is in the forefront of various functions.Combining the geographical resource conditions of Longchuan Town and its functional positioning in Nanhua County,its most The important role is to achieve the best development on the basis of serving the whole county;the agricultural production activity space is mainly composed of four townships in the northern part of the county and Yulu Township in the southern part of the county,which has obvious advantages in cultivated land resources;the non-agricultural production activity space is concentrated On the edge of the county and in the southwestern region,and the geographical location of the two townships in the southwest is conducive to the advantages of large-scale development,which can achieve economies of scale;the current economic center of South China is mainly concentrated near Longchuan Town,which has been Both are single-polarized development,and the two townships dominated by industrial development are in the southwestern area of Nanhua County.This can greatly promote the development of the regional economy and make Nanhua County 's economy truly bloom.In addition,it is positioned as an ecological service function.Tujie Town has the Tujie River across the territory,and the forest coverage of Tujie Town has reached 78%.Aspect plays an important role.(3)This paper takes the three types of townships as agricultural production type,industrial production type,and ecological service type as examples,and gives space optimization schemes under different dominant function types.Agricultural production-oriented townships are mainly considered from the perspective of agricultural function and township space optimization.In terms of agricultural function optimization,land remediation,revitalization of agricultural land,development of characteristic agricultural planting,development of agricultural tourism areas,and development of Internet agriculture were proposed;in terms of township space optimization,it was proposed to optimize the population size of villages and towns,strengthen the remediation of hollow villages,optimize thetownship node system,optimize Distribution of central villages,optimization of the spatial structure of townships,optimization of related public service facilities,and optimization of related road networks.Industrial production townships are mainly considered from the perspective of industrial function and township space optimization.In terms of industrial function optimization,it proposes the spatial pattern of point-axis development in towns and counties,integrating the spatial structure of industrial enterprises,highlighting the development of characteristic industrial parks,and promoting the large-scale planting of agriculture in Shaqiao Town to release labor for surrounding enterprises and release advantages based on transportation.Build an economic belt;township space optimization aspects propose to optimize the population size of villages and towns,guide the population to move closer to the central village and the township area,rectify the unreasonable use of homesteads in the villages of Shaqiao Town to reduce the waste of construction land,optimize the township node system The proper location of the central village,the optimization of the overall industrial spatial layout,the optimization of roads and residential areas on both sides of the river,the strengthening of supporting public service facilities,and the optimization of the spatial structure of villages and towns.Ecological service townships are mainly considered from the perspective of ecological service function and township space optimization.In terms of ecological function optimization,it is proposed to delineate ecological space utilization type areas,delineate ecological space utilization type areas,increase protection of rivers and ponds,increase protection of nature reserves,and optimize agricultural production areas;township space In terms of optimization,it is proposed to optimize and optimize the population size to reduce the impact of human activities on the ecological environment,formulate homestead allocation and recovery policies to reduce construction land waste,optimize the spatial layout of the village and town area,carry out ecological migration,and improve the village greening Landscape construction,perfect related public service facilities,and optimize channel network. |
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