| Starting from the interaction between urban ecological construction and comprehensive strength,this paper makes thorough and systematic quantitative analysis in the internal interaction and mechanism of the system,so as to explore the synergistic mechanism of mutual development.The research in this paper can provide a reference for the development of urban green space,forestry and ecological construction and the promotion of urban comprehensive strength,and has great practical guiding for the development of urban economy and society.This paper establishes a mathematical model by factor analysis method,and concludes that factors have a greater impact on ecological construction such as cultivated land area,number of parks and so on,and that factors have a greater impact on the quality of life of residents such as education,income and price.The analysis of city development indicators shows that the gross industrial output value,local fiscal revenue and regional gross product have a greater impact on urban development indicators;in the analysis of atmospheric environmental indicators,the content of SO2 and NOx in the air has a greater impact on the atmospheric environment;through the analysis of the indicators affecting the comprehensive strength of the city,The position of comprehensive reality of ecological construction in the city has been determined.The results of correlation and regression analysis between comprehensive indicators of ecological construction and other indicators showed there was a significant positive correlation between the comprehensive index of ecological construction and the quality of life of residents,with a single correlation coefficient of 0.986.There is also a significant positive correlation between comprehensive indicators of ecological construction and urban development indicators,with a single correlation coefficient of 0.980.After the comprehensive strength of cities with control variables,there is a significant negative correlation between the comprehensive index of ecological construction and the atmospheric environmental index,and the correlation coefficient is-0.970.There is correlation between the comprehensive index of ecological construction and the comprehensive strength of the city,and the correlation coefficient is 0.858.Analytic Hierarchy Process(AHP)was used to analyze the construction of green space in each banner area of Ordos City.The result shows that the park green space accounts for the largest proportion of the type of green space,accounting for 0.473,followed by the subsidiary green space,accounting for 0.284.Through the comparative analysis of the green space construction in each banner area,it is concluded that the structure and function of the green space in Kangbashi district are best,with the proportion value of 0.2413,the ranking of Shulinzhao town is lower,the proportion value of 0.0737,and the green space status needs to be improved.From the cluster analysis of park green space,four towns in the west are clustered into one group,Shulinzhao and Xuejiawan town in the east are clustered into one group,and two districts and one town in the central urban area are clustered into one group.It shows that there are obvious regional differences in the construction of park green space in Ordos.From the point of the proportion score,the construction of park green space in central urban area is superior to that in other areas.ARG Gis was used to extract the survey data of local public welfare forests in Ordos City in 2017,and the data were analyzed by the open grade method.The results showed that the coverage rate of shrub forest,arbor forest,sparse forest land and forestry structure were 10.53%,1.52%and 0.037 respectively.Overall,the development of the southeastern part of the city is better than that of the western part.The construction of Yijinholuo Banner and Ushen Banner is better,with proportion of 0.196 and 0.163,respectively.The former Etok Banner and Hangjin Banner rank lower,proportion of 0.097 and 0.094,respectively.The GM(1,1)model of grey prediction is used to predict the future development of public green area and local public welfare forest area in Ordos City.It is concluded the area of public green space and the area of local public welfare forest in Ordos are showing a growing trend.By the end of the forecast period,the average annual growth rate of public green space area will be 16.6%,and that of local public welfare forest area will be 6.6%.From the forecasting results,the ecological environment of Ordos will change in the future.The paper puts forward the synergistic relationship among ecological construction,human settlements and urban development in the urban comprehensive strength system,which has important theoretical value and practical guiding significance for promoting the urban living space to develop in a more orderly and stable direction and realizing the harmonious coexistence of human and nature. |
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