中国城市建设用地的动态变化态势与调控.

The dynamic changes in the total amount and the structure of urban construction land are barometers to measure the health and efficiency of regional urbanization. From 1981 to 2014, vast changes have occurred in quantity, average per capita area and sprawling elastic coefficient of urban construction land in China. The area of urban construction land increased 6.44 times, which means annual increase of 1 311 km2 in the past 35 years. Per capita urban construction land increased 2.78 times, with annual increase of 2.37 m2. The speed of urban construction land expansion was significantly higher than that of population growth, and presented a large undulating change trend. The structure of urban construction land changed stably as a whole. The total amount of various types of urban construction land in the eastern region accounted for over 50% of the whole nation, which decreased slightly in recent years. The proportion of urban construction land of large, medium and small cities in China remained 50%, 20%, and 30% respectively. The main issues of urban construction land expansion in China during the last 35 years are mainly: 1) the urban construction land spread disorderly that lead to high per capita construction land; 2) the structure of urban construction land is not harmonious, which reduce the efficiency of urban land intensive use; 3) the urbanization and economic growth depended overly on construction land, and this trend is difficult to reverse in short term; 4) too many new city zones have been built in recent years and the area is too large, which exacerbated the expansion of urban construction land. Hence, the urban construction land control in China in the future should be preventing the urban sprawl disorderly, raising the level of land intensive use, optimizing the structure and function of urban construction land and making the cities growth intensively, working out the differential control measures according to local conditions, and guiding the new city zones to rational and moderate development. [ABSTRACT FROM AUTHOR]