Research on the Synergistic Development Measurement of Construction Land Scale and Population Scale in Urban Areas of Counties in China

In order to quantitatively portray the degree of synergistic development of construction land scale and population scale in county urban areas in China, this paper uses elasticity coefficient model and deviation coefficient model to measure the sequential change characteristics, spatial divergence differences and the degree of synergistic development of population scale and construction land scale of county units in each province in China based on the data of China Urban and Rural Construction Statistical Yearbook from 2006 to 2016. The results of the study show that: ①Both the number of population and the area of land for construction in counties in China show a trend of first increasing and then slightly decreasing, reaching a peak in 2014 and then slowly decreasing; ②In the process of rapid urbanization, the urbanization rate of county units in China is much smaller than the national average urbanization rate, and the urbanization level of counties is less than half of the national urbanization level. Therefore, the main force driving China’s urbanization process comes from the development of large and medium-sized cities, rather than county units. Besides, population transfer is more inclined to large and medium-sized cities than to county cities; ③ Based on the elasticity coefficient model, it is concluded that except Henan, Shanxi and Qinghai provinces, the other provinces in China are in a situation where the scale of construction land in county urban areas is not coordinated with the scale of population, and the type of incoordination is of the type of A disproportionate growth of people and land (the growth rate of the scale of construction land area and the scale of population are both positive and the growth rate of the former is greater than that of the latter); ④According to the deviation coefficient model, it is concluded that the scale of construction land scale and population growth in county units in China are not coordinated. Eighteen provinces in China are in a state of high dissonance, accounting for 64. 29% of the total. The average deviation coefficient for their degree of coordination is 2. 32, much higher than the average coefficient of deviation of 1. 5 in China. The relevant research results can provide theoretical reference for realizing the sustainable and healthy development of county cities, optimizing the structure of county units and improving utilization efficiency of county unit resources.