According to connotations of urbanization and eco-environment and its PSR framework,the index system and the appraisal model were built by grey technique. The model includes grey associative coefficient,grey associative degree matrix and coupling degree.

• 根据城市化与生态环境含义及其PSR框架；在灰色技术支持下；由灰色关联度系数、关联度矩阵和耦合度构建了耦合系统指标体系和评价模型.