This paper analyzed spatial-temporal differences,driving forces and convergence of urban land use efficiency across 12 cities in Poyang Lake Eco-economic Zone based on the Super⁃SBM Approach.The re⁃sults showed that:1) Urban land use efficiency presented a waving trend with county⁃level cities having a bet⁃ter performance than city areas and there is much room for improvement in urban land use efficiency because none of the cities was efficient enough in this regard.2) All cities,troubled by excessive input and output short⁃age,should reduce the land scale for city construction,adjust industrial layout,expand the development scale ofthe third industry and improve output efficiency.3) Per capita GDP,the output value proportion of the third in⁃dustry were positively correlated with land use intensity,while the proportion of the second industry was nega⁃tively correlated with land use intensity.The output value proportion of the second industry,the number propor⁃tion of the third industry and whether the city is prefecture-level cast no significant influence on land use in⁃tensity.4) Urban land use efficiency did not have absolute convergence or conditional convergence, and the disparity of urban land use efficiency will continue to expand.%基于Super－SBM模型测算2002—2014年鄱阳湖生态经济区12个城市土地利用效率的时空差异，对其进行影响因素的实证分析和收敛性检验。结果表明：（1）城市土地利用效率呈波动发展趋势，县级市的表现比地级市好，由于没有一个城市的土地利用是强有效率的，城市土地利用效率整体上还有较大的改善和提升空间；（2）各城市都面临投入过多和产出不足的问题，优化的方式是缩小城市建设用地规模，调整产业结构布局，扩大第三产业发展规模并提高产出效率；（3）人均GDP、第三产业产值比重和土地利用强度与城市土地利用效率呈正相关，而第二产业从业人数比重与城市土地利用效率呈负相关，第二产业产值比重、第三产业从业人数比重和是否地级市等与城市土地利用效率的影响不显著；（4）城市土地利用效率不存在δ收敛、绝对β收敛和条件β收敛，城市土地利用效率差异会不断扩大。
展开▼
