Research On The Evolution Process Of Rural Residential Space Based On The Self Organization Perspective

With the continuous development of new urbanization in China,the importance of villages and towns is becoming more and more important.In the new round of institutional reform in 2018,the "two meetings" established the important position of the construction of ecological civilization in our country,and set up the Ministry of natural resources to exercise the responsibilities of urban and rural planning and management,and stressed the urgent need for the coordinated coupling of the relationship between people and land in the development of villages and towns.Under the background of new urbanization development,more resources are tilted to villages and towns to meet the needs of urban and rural planning,intensive and compact transformation.Village and town,as the intersection of urban industrial civilization and rural agricultural civilization,its construction and development often imitated the city and lost its own characteristics,faced with many problems such as arable land occupation,environmental pollution,waste of resources and low efficiency of land use.It is urgent to explore the law of autonomous development of villages and towns,coordinate with nature and satisfy people's rationality.The self development mode of villages and towns needs to meet the needs of harmonious,healthy and sustainable development in villages and towns.This research adopts the method of combining qualitative and quantitative research,taking the village and town settlement space as the research object.Through the in-depth study of the self organization and fractal theory and method,the main method of measuring the fractal dimension of the village settlement space is chosen by the fractal dimension method.In the research ideas,first,based on the water network density,the 20 general towns in the area of Suzhou are classified,and the different types of typical villages and towns are selected according to the social and economic development of the population,economic output value and financial income in the end of the year by the cluster analysis method of SPSS.Secondly,using ENVI software to extract the spatial form of water system and construction of Suzhou city in 1995,2000,2005,2010 and 2015,and to calculate the fractal dimension of the typical villages and towns in different years by using the layer linking method and fishing net method in GIS.Then,according to the evolution state of the spatial form and the fractal dimension,we divide the evolution stages of the rural settlements,summarize the characteristics and rules.Finally,we analyze the causes of evolution based on the perspective of self-organization and propose corresponding planning optimization strategies.Based on the classification of villages and towns with high,medium and low water network density,according to the social and economic development situation,two typical villages and towns with good development and lagging development are selected respectively.Through the calculation of the fractal dimensions of typical villages and towns,the relationship between construction space fractal dimension,water system space division and construction and water system space fractal dimension is three.The evolution of one aspect.Based on the characteristics of different types of village and town space evolution and fractal evolution,the evolution process of villages and towns' settlement space is divided into three stages: stationary period,fluctuation period and new flat period.From the three aspects of construction space evolution,water system space evolution and human land relationship evolution,the stage characteristics of village and town settlement space evolution are analyzed and studied.The generality and difference between the same kind of villages and villages.Finally,based on the perspective of self-organization,the influence of external forces,such as natural ecology,social and economic development,planning,policy and other external forces on the evolution of space in the evolution process of different types of villages and towns is analyzed,and the corresponding planning optimization strategies are put forward to different types of villages and towns,so that the direction of planning is in conformity with the self-organized development rules of villages and towns.Law.