中文摘要：

土地问题是当前我国开发区发展面临的重大挑战，在科学发展观指导下，国家从政策和管理层面对开发区提出提高土地集约利用水平的客观要求。江苏省是我国开发区较为发达的地区，开发区的发展对地区经济的发展起了重要推动作用，但也存在数量过多、土地利用集约度不高的问题。借鉴一些学者的相关研究，构建了一套开发区土地利用经济评价指标体系，采用系统协调度模型，对江苏省的省级开发区的土地开发效益进行评价，并就开发区效益评价结果进行了数学和空间分析说明。

英文摘要：

Now land resource has become the most important factor to development zones. The government requires all development zones to improve their intensive degree of land use at full steam. Under the guidance of scientific development standpoint, it is necessary to establish the system for economic evaluation of land use in development zones. Development zones give a great impulse to regional economy of Jiangsu Province,but it is facing a challenge in the new development condition. This paper constructed an index system for economic evaluation of land use in development zones and used the system harmony model to get the harmony degree of each development zone on the whole. After computing the harmony degree,the authors analyzed the characters of the result and came to the conclusion that the economic efficiency of land use of the 103 development zones was not high and many zones needed to improve their intensive level of land use. The authors suggested that the spatial layout of the evaluation result had a great regional difference.