中文摘要：

城市群物流共生系统演化机制,包括共生单元之间的竞争协同机制,以及共生单元与共生环境之间的正负反馈机制。长江中游城市群物流共生系统的共生演化,应增强物流供给主体、需求主体、支持主体等共生单元的共生能力;提升共生系统的共生界面,如优化长江中游城市群物流基础设施条件、制定物流服务标准体系等;优化共生系统的共生环境,如政治环境、市场环境、科技环境、人文环境等。

英文摘要：

The evolution mechanism of urban agglomeration logistics symbiosis system, include the mechanism of competition and cooperation between the symbiotic units, and the positive and negative feedback mechanism between the symbiotic unit and the symbiotic environment. We should strengthen the symbiotic capacity of symbiosis unit such as logistics supply main body, logistics demand main body and logistics supporting main body; enhance the symbiotic interface, such as the optimization of the Yangtze River middle reaches of urban agglomeration logistics infrastructure, the development of logistics service standards system, and optimize the symbiotic environment, such as political environment, market environment, science and technology environment, human environment, etc.