基于結(jié)構(gòu)方程模型的城鎮(zhèn)化質(zhì)量與農(nóng)用地利用水平評價及時空關(guān)聯(lián)性研究
[Abstract]:Urbanization is not only a necessary process of development and progress of a country or region, but also a reasonable way and effective measure to promote economic growth. In recent years, with the continuous progress of urbanization in various parts of the country, agricultural land in the suburbs has been heavily occupied, and the labor force has gradually shifted from the countryside to the city, but urbanization has improved people's living standards at the same time. It has a negative effect on the utilization of agricultural land, especially in the combination of urban and rural areas, the farmers' planting will and grain yield are both low, which makes the contradiction between urbanization quality and agricultural land use sharp. Therefore, it is of guiding and practical significance to grasp the evolution law of urbanization quality and agricultural land use level and to accurately locate the urbanization quality development level and agricultural land use level at the present stage. In this paper, Deyang, Mianyang (hereinafter referred to as De-mian) as the research area, the first preliminary establishment of the evaluation index system, using LISREL to verify the factor analysis to delete the indicators, Based on the structural equation model, the factors load and path coefficient were determined, and the comprehensive scores of urbanization quality and agricultural land use level between 2000 and 2014 were calculated. Then the temporal and spatial evolution of the study area is analyzed by Excel and Arc GIS. Finally, the correlation coefficient of SPSS and Geo Da is calculated, and spatial autocorrelation analysis is carried out to judge the correlation between urbanization quality and agricultural land use level. In order to reasonably promote the development of urbanization and the protection of agricultural land to provide new ideas. The conclusions of this paper are as follows: (1) the quality level of urbanization is on the rise in time series, the development level of Fucheng District is the highest, Jingyang District is the second, Guanghan City and Youxian District are roughly the same, Beichuan County and Pingwu County have always been in the last place. In space, the distribution range of high score of urbanization quality gradually expanded, and the regional differences became more and more significant. As two regional growth poles, Jingyang District and Fucheng District have fundamentally promoted the development of the Chengdemian Economic Belt and its surrounding cities. However, the development level of the areas on both sides of the axis of the economic belt is still relatively low. (2) the level of agricultural land use varies steadily with time, and can be divided into high level development areas such as Shifang City, Fulcheng District and Guanghan City according to their development degree. Beichuan County and Pingwu County 2 low level development areas, and the remaining 10 level development areas. In spatial distribution, the agricultural land use level gradually develops to the high score interval, the promotion, the regional disparity narrows gradually. The overall level of agricultural land use in Shifang City is high all year round in the study area. The level of agricultural land use in Pingwu County and Beichuan County in the northern mountain area of Mianyang is quite low. (3) there is a significant positive correlation between the quality of urbanization and the level of agricultural land use. For areas where the quality of urbanization is not balanced with the level of agricultural land use, we can increase the rate of population urbanization, expand the scale of cities and towns, develop the secondary and tertiary industries, and increase social security investment. To improve the quality of urbanization, to increase the input of unit mechanical power, to increase the rate of irrigation, to increase the grain yield and to raise the level of utilization of agricultural land, and to promote the harmonious and healthy development of urbanization and agricultural land.
【學(xué)位授予單位】:四川師范大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:F299.21;F321.1
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