| Construction land is the material carrier of social and economic activities,along with the rapid progress of urbanization and the large number of foreign personnel stationed in,the original urban planning land continued to expand rapidly,in Anhui Province,land resources supply and demand imbalance and speed up the Wanjiang urban belt,Hefei Economic Circle and urban agglomeration of Wanbei City,it is of great practical significance to make more rational and efficient use of construction land.This paper constructs the evaluation index system of construction land benefit in Anhui Province,and studies the actual situation and trend of the actual use of construction land in Anhui Province from 2000 to 2014,and objectively analyzes the obstacle factors which affect the utilization benefit of construction land.At the same time,The panel data measured the contribution rate of construction land to economic growth and the driving factors of construction land expansion in the whole province,and offered suggestions for future improvement of land use efficiency.In this paper,the relationship between construction land and economic growth in Anhui Province as the starting point for the study,from the fourth chapter to the sixth chapter mainly empirical analysis,the fourth chapter from the economic,social and ecological three selected 25 evaluation indicators And constructs the evaluation index system of construction land use benefit,and makes empirical analysis and analysis to this index system,in order to measure whether the construction land use efficiency can be effectively exerted.Firstly,we use the range formula to normalize the initial data,and then use the coefficient of variation method to give the objective weights of the 25 index weights of the three standard layers.Finally,we use the comprehensive method to synthesize the data of Anhui Province.Exponential model is used to calculate the three benefit levels and the comprehensive benefit level of the construction land use in Anhui Province.In order to find out the obstacle factors which hinder the improvement of construction land use efficiency,the obstacle degree model was used to analyze the 25 indexes and the obstacle degree of the three standard layers.The obstacle of the construction land use efficiency from 2000 to 2014 was ranked.The fifth is to use the extended CD function model to estimate the contribution rate of construction land expansion to the economic growth in each city.Chapter 6 studies the construction land expansion in Anhui Province based on the gray relational model Of the drivers.Based on the above empirical results,the following conclusions can be drawn:(1)The comprehensive benefit of construction land utilization in Anhui Province is increasing steadily from 2000 to 2004 and from 2005 to 2014.The contribution rate of the three subbenefits to the comprehensive benefit of the construction land is higher than the economic and social benefits,but after a period of development,the economic and social benefits have been increasing,The contribution of benefits to the largest,social efficiency,ecological contribution of the weakest;from the indicators of Anhui Province,the impact of the construction land use efficiency of the importance of view,the economic benefits of real estate profits per unit area of the most significant social benefits Of the urban residents per capita disposable income impact is more significant,ecological benefits in the afforestation area of significant impact,other indicators less obvious.(2)From the obstacle level of the standard layer,the economic level and the social development obstacle showed a declining trend,and the ecological barrier showed an upward trend,which showed that the pre-economic level was the most important factor to restrict the utilization benefit of the construction land.The obstacle effect to the comprehensive benefit becomes more and more obvious.From the change trend,the ecological barrier gradually surpasses the economic barrier and the social barrier.In 2009,the level of economic and ecological barriers to change dramatically,which is the evaluation system in the actual value of the indicators are closely linked.(3)Obstacles from the index factors,the economic obstacles to improve the utilization efficiency of construction land in Anhui Province are the retail sales per capita of social consumer goods,the real estate profit per unit area,the average fiscal revenue,the secondary and tertiary industry output value,The amount of fixed assets investment,the amount of fixed assets investment.The social barrier factor is the number of employees in the secondary and tertiary industries and the population density.The ecological barrier factor is mainly land development intensity,annual afforestation area and cultivated land area.2.(1)The result of the variable coefficient model of panel data shows that there is a long-term cointegration relationship between the secondary industry,capital,labor and construction land.The elasticity of capital and labor input to economic growth is respectively 0.47 and 0.08.Although the elasticity of construction land element is lower than capital elasticity,it is higher than labor elasticity,which shows that the contribution of construction land factor to economic growth should not be overlooked.The elastic coefficient of economic growth in different urban construction land is different,and the contribution of different urban construction land is different,which shows that the dependence degree of different cities in Anhui Province is not the same.(2)From the empirical results,we can see that the degree of economic development and construction land investment is not necessarily a positive correlation,indicating that the construction land is not a necessary element of rapid economic development,regional economic development and urban resources,preferential policies,infrastructure construction As well as technology and human factors such as closely related.(1)In the period of 2000 to 2014,the area of construction land in Anhui Province is expanding at an annual rate of 5%,while the per capita road area and urbanization rate are the two main factors affecting the expansion of construction land.The province's rapid economic development,the influx of non-agricultural population will also bring construction land expansion.(2)By introducing the gray relational model,we can see that the driving factors of construction land expansion are not separated from each other,but are the result of the interaction of these factors.At the same time,using the correlation degree to sort,we can better distinguish the main driving factors and the minor driving factors.The main driving factors influencing the expansion of construction land in Anhui are: first,the level of urbanization,followed by economic development and industrial structure.Upgrade,and these three are with the expansion of construction land showing a strong relationship.With the expansion of the size of the secondary and tertiary industries in Anhui Province and the improvement of urbanization level,these driving factors are interrelated and will affect the construction land in our province for a long time.Based on the above empirical analysis,this paper puts forward five suggestions to improve the efficiency of construction land and promote the economic growth of Anhui Province: saving and intensive construction land use;carrying out zoning regulation of construction land use;ensuring economic society Development of reasonable land use;control the supply of construction land,is strictly prohibited waste of land resources;focus on the construction of land development in the process of ecological protection. |
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