Analysis of Coupling Between Urbanization and Water Resource and Environment of Inland River Basin in Arid Region:A Case Study of Shiyang River Basin
以石羊河流域为例，运用灰色关联分析法，揭示了城镇化与水资源环境系统耦合的主要影响因素及耦合度的时空分布特征，发现两者存在复杂交互作用，且耦合度变化呈双U型曲线。
Based on the evaluation indicator system concerning the coupling between urbanization and water resource environment system and GRA(Grey Relationship Analysis) method,taking Shiyang River Basin as case study,this paper reveals the main factors influencing the coupling between urbanization and water resource environment and the temporal-spatial distribution of the coupling degrees.The results show:(1) Rapid urbanization,low social service level and irrational industrial structure are the main momentums of urbanization influencing water resource environment,while the large water use,low water management level and water shortage are the main facors of water resource environment affecting urbanization,which verify the interactive and complicated coupling between two systems.(2) In time series the change of coupling degrees shows its phases and undulatory characteristics and its variation curve is smilar to two continuous Ushape.The first Ushape shows that the restriction of water resource environment on urbanization was softer before and harder later from 2001 to 2007.The second Ushape shows the ecological deterioration had eased since 2007 when the Key Control Plan of Shiyang River Basin in Gansu Province was published,meanwhile the necessity of comprehensive management over Shiyang River Basin to ensure harmonious coupling is also warned.(3) In space the coupling degrees show its characteristic of spatial complexity,which are closely related with the economic and social development level,urbanization process and regional natural condition of each district and county.