Livability Evaluation And Influencing Factors Of Human Settlement In Jiangsu Province

The human settlement is a space where human beings inhabit and live,and a site for human work,life and social activities.The urbanization and industrialization process has promoted the leapfrog development of economy.On the one hand,it has promoted the perfection of public utilities covering technology,culture,sanitation and education as well as the increase of residents’ housing livability.On the other hand,it has also caused increasingly severe ecological environment problems,and reduced the human settlement livability and residents’ life satisfaction.With the highest population density in China,Jiangsu Province is characterized by compact inhabitation.It involves prominent problems of human settlement like insufficient residential land,traffic congestion and severe environmental pollution.It is necessary to conduct comprehensive evaluation on the human settlement livability of Jiangsu Province,analyze its space-time distribution characteristics,and explore its dynamics and obstacle influence factors.This can provide a theoretical foundation and suggestions for the city construction and human settlement improvement of Jiangsu Province.In this thesis,Jiangsu was set as the research object,and an evaluation index system comprising five criterion layers(nature,society,economy,ecology and dwelling environment)was established.Besides,the entropy evaluation method and multi-index comprehensive evaluation method were used to calculate the human settlement livability score,and comprehensive evaluation was conducted on the space-time distribution characteristics of human settlement livability in Jiangsu Province in 2005,2009,2013 and 2017 based on trend analysis,GIS spatial autocorrelation analysis and hotspot analysis.Meanwhile,the driving factors and limiting factors of livability changes in human settlement in Jiangsu were explored via the geographic detector and obstacle model.The main results are as follows:(1)Space-Time evolvement characteristics of human settlements livability:Generally speaking,the human settlement livability showed a rise trend from 2005 to 2017.The number of high-level cities increased obviously from 8 to 28,presenting a growth rate of 250%;Cities with rising human settlement livability were mainly distributed in Nantong and Taizhou.Generally speaking,the livability of human settlements in Jiangsu Province presented a spatial distribution patternof progressive decrease from south to north;the spatial stratification phenomenon became increasingly outstanding from south to north.(2)Spatio-temporal agglomeration characteristics of human settlements livability:Cities with similar level of human settlements environment livability presented a certain degree of agglomeration in spatial distribution,and the agglomeration is becoming stronger and stronger.The gathering areas of high values were mainly distributed in the zone of Suzhou and Wuxi,and the distribution range presented an expanding trend.The distribution range of the low value concentration area tends to be stable after slowly rising,and showed a trend of moving towards the north.(3)Driving force analysis of human settlements livability change:At present,the economic development was the leading power for the development of human settlement livability;the intensity of government investment and market consumption level were the internal key powers;the ecological construction and residential land supply were the secondary powers.(4)Obstacles analysis of human settlements livability:①Obstacle degree of criterion layer:The economic environment showed the highest obstacle degree for the human settlement of Jiangsu;the obstacle degree of ecological environment was the lowest,but this obstacle degree maintained an upward trend;the obstacle degrees of nature and dwelling environment fluctuated,but they were on the rise;the obstacle degree of social environment was on a declining curve.②Obstacle degree of index layer:The four factors covering per capital gross regional product,retail sales of consumer goods per capita,per capita fixed assets investment and number of books in the public library per 10,000 people were common major obstacle factors of most cities in the north regions of Jiangsu;the three factors covering number of beds in health institutions per 10000 people,retail sales of consumer goods per capita and number of books in the public library per 10,000 people were common obstacle factors of most county-level cities and counties in the central regions of Jiangsu;the three factors covering per capita housing areas,per capita public green areas and number of books in the public library per 10,000 people were common obstacle factors of most cites and districts of the south and prefecture-level city urban central regions of Jiangsu.