1990年代以来长江三角洲城市土地利用效率研究

The Study of Efficiency of the Urban Land Utilization in the Yangtze River Delta Since the1990s

利用DEA方法和城市土地结构指数对1990年代以来的长江三角洲城市土地利用进行效率评价。研究结果表明:1990-2000年,长三角城市土地利用效率稳步提升,2000-2004年长三角城市土地利用处于持续高效状态,所有城市土地利用效率处于规模递增阶段。在城市土地利用结构中,优化的城市土地利用结构有助于城市效率的提升,未来长三角城市土地利用结构中需要降低工业用地比例,提升行政办公用地和绿地等比例,提高其均衡度。

This paper uses the DEA method to evaluate the efficiency of the urban land utilization in the Yangtze River Delta since the 1990s, the indexes in the urban land＇s structure are calculated, to explain the efficiency status. The study result is that. from 1990 to 2000, the efficiency of the urban land utilization was improved gradually; from 2000 to 2004, the efficiency in the Yangtze River Delta cities was standing in high efficiency. The efficiency of the land use is improving with the scale＇s expanding. In the structure of the city＇s land, the land structure＇s equalization will promote efficiency in the city. In the future, the cities in the Yangtze River should decrease the proportion of the industry land, increase the proportion of the administration land and Greenland in order to increase the equalization degree.