Research On The Spatial Pattern Optimization Of "Production-Living-Ecological" Spaces In County Area

Territorial space is a complex composed of production,living and ecological spaces.With the acceleration of urbanization,agricultural production space and ecological space have been squeezed,and the structural proportions among the Production-Ecological-Living spaces in the region have become increasingly unbalanced.Under the actual needs of optimizing the spatial pattern of small-scale land,this paper conducts research based on the county scale.The article firstly clarifies the temporal and spatial evolution characteristics of Production-EcologicalLiving spaces according to the results of Production-Ecological-Living spaces classification,and incorporates the complexity,vulnerability and stability of various spaces into the analysis framework to identify current problems and spatial conflicts.Secondly,this article combines with geographic location and overall characteristics to determine the suitability of various spaces.Finally,with the help of niche theory,this paper explores the optimization strategies of Production-Ecological-Living spaces.The main conclusions are as follows:(1)The evolution features of Production-Ecological-Living spaces in Peixian County: Through classification statistics and transition matrix analysis,the production space mainly includes cultivated land,and it is the main space type of most towns in Peixian County.The living space of Hanyuan Street,Hanxing Street and Peicheng Street accounts for a large proportion and has a growing trend.The difference in the area of ecological space among towns is the largest,and the difference in the area of living space is smallest;from 2010 to 2018,the production space and living space have increased in quantity structure.The total area of ecological space has declined.The living space and ecological space have changed frequently.The exploratory data analysis method is used to analyze the spatial heterogeneity of the ProductionEcological-Living spaces in Peixian County.Within the study period,the degree of spatial autocorrelation among production space,living space and ecological space is strong,and the effect of low-low agglomeration of production space is obvious.High-high agglomeration and low-low agglomeration are the main ones,while the high-high agglomeration area of ecological space is more concentrated.This article quantitatively studies the spatial conflicts level of Production-Ecological-Living spaces by constructing a spatial conflict measurement index system.From 2010 to2018,the spatial conflicts intensity of Production-Ecological-Living spaces first increased and then weakened.Stronger spatial conflicts are the main types of conflicts in the study area.The conflict level between the production space and the living space is relatively high,while the ecological space conflict level is low and relatively stable.(2)With the help of the spatial principal component analysis method,the spatial suitability of the "Sansheng" in Peixian County was evaluated,and the results showed that: The evaluation results of Production-Ecological-Living spaces suitability in Peixian County show that the overall suitability of the production space in Peixian County is low,mainly low-grade suitable and unsuitable,and the area of the two accounts for 56.05%;The sum of areas with moderately suitable production space and above is close to half of the area of the study area,concentrated in Huzhai Town,Weimiao Town,and Wuduan Town.The living space suitability of the study area is low,and most of the unsuitable living spaces are located in the eastern part of the study area.This is because the Weishan Lake area included in the study area has brought greater restrictions on the development of living space;the proportion of the most suitable living space is only 7.68%.The suitability levels of most areas of Hanxing Street,Hanyuan Street,Peicheng Street and Datun Street are the most suitable and moderately suitable,because this part of the area is the location of the central urban area of Peixian County,which has important administrative,economic and cultural service functions.The ecological space suitability level is mainly moderate and most suitable.The corresponding areas are mainly distributed in the administrative units around Weishan Lake.As a large area lake adjacent to Peixian County,Weishan Lake has strong ecological functions;the proportion of ecologically unsuitable areas in the study area is 26.24%,mainly involving Anguo Town,Qishan Town,Hekou Town,Jing’an Town and Zhangzhuang Town.(3)The optimization results of Production-Ecological-Living spaces in Peixian based on the niche theory indicate that: In the evaluation of the "state" value,the medium and low-suitability levels of production space are relatively large,the areas of the living spaces are relatively similar,and the ecological space is mainly the most suitable and medium-suitability grades.The "effect" value of the suitability of production space are concentrated in the southeast of Peixian.The "effect" values of central urban area are relatively concentrated,and the ecological space suitability "effect" value is characterized by agglomeration distribution.The "effect" value of Production-Ecological-Living spaces suitability is mainly distributed in the neighborhood of the area with higher suitability.The external effects of the more appropriate grid units can be applied to the actual situation and provide a basis for optimizing the spatial pattern of Production-Ecological-Living spaces.Before the optimization,the production space’s area is the largest.And after the optimization,the ecological space accounts for the largest proportion.After the optimization,the reduction of production space is larger,and the increase in living space is less than the increase in ecological space.The ecological space distribution is obviously more extensive,and the living space is obviously spreading in central urban area.During the optimization process,the production space changes most frequently,and the changes in ecological space are mostly transfer-in process,but most of them are in the process of transfer,and the living space state is relatively stable.This research initially proposes to integrate the layout of urban production space and explore the potential of agricultural production space.Second,the study suggests to improve the transportation network to enhance the convenience of living space.Finally,the research proposes to take into account the protection and appropriate development of ecological space and promote its organic integration with production and living spaces.There are 31 figures,29 tables,and 145 references in the thesis.