Evaluation of Synergetic Development of Water and Land Resources Based on a Coupling Coordination Degree Model

The interaction between water and land resources (WALRs) has been further enhanced with the development of human production activities. Evaluating synergetic (SD) level WALRs is conducive to discovering weakness comprehensive utilization promoting sustainable development. However, previous studies did not clearly elucidate effects (SD-WALRs). For evaluation methods, impact various subsystem levels on whole system often ignored due its unclear definition. Therefore, in this research, concept SD-WALRs was defined based theory. By using “Driving Force–Pressure–State–Impact–Response” (DPSIR) model, index systems WALR were established. regarded as efficacy functions coupling coordination degree (CCD) model SD-WALR constructed it. Taking Luoyang City an example, latest 10 years (2010–2019) available data study period, results showed that value SD increased from 0.609 0.789 during which reached intermediate In general, a positive trend “high but low development” development”.