技术进步、城市土地利用效率及反弹效应——以江苏省为例

Technological Progress,Urban Land Use Efficiency and Rebound Effect——Taking Jiangsu Province as an Example

利用DEA方法测算了江苏省13个地级市2000—2013年的土地利用效率,检验了技术因素对城市土地利用效率的影响。结果表明:①总体上,江苏省城市土地利用效率呈现"南高北低"的空间分布特征。②产业结构、经济发展水平对城市土地利用效率产生了显著正影响;人口规模、人均耕地面积产生了显著负影响;技术因素对提升土地利用效率无显著影响,原因在于技术因素产生了反弹效应。③城市土地平均反弹效应为125. 75%,表明节约土地空间依然很大。据此,提出应采用技术进步、产业结构调整等手段来提升土地利用效率,解决经济高质量发展阶段的土地资源瓶颈问题。

This paper calculated the urban land use efficiency of the thirteen cities in Jiangsu Province from 2000 to 2013 using DEA method,and examined the effect of technical factors on urban land use efficiency. The results showed that: ①In general,land use efficiency in Jiangsu Province presented the spatial distribution characteristic of'high in the south and low in the north'. ②Industrial structure and economic development level had a significant positive impact on urban land use efficiency;population size,per capita arable land area had a significant negative impact,technical factors had no significant effect on the improvement of land use efficiency,because the technical factors had a rebound effect. ③The average rebound effect of urban land was 125. 75%,indicating that the land saving space was still large. This paper put forward that the land use efficiency should be improved by means of technological progress,industrial structure adjustment and so on,so as to solve the bottleneck of land resources in the stage of high quality economic development.