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Received: 7 December 2019 Accepted: 1 March 2020 Water conservation areas (WCAs), as an essential part of the ecosystem, are closely related to the sustainable development of socioeconomic system. To disclose the ecological and economical effects of the WCA, this paper clarifies the structure of the water resource-ecology-economy (ECC) system of the WCA, and sets up system dynamic models (SDMs) of the three subsystems under the ECC system. The dynamic evolution of the subsystems and the ECC system was simulated. Based on the feedbacks of the variables and objectives, the authors analyzed the internal correlations between water resource management, eco-environment, and economic development in the SDM, and predicted the trends of the three sub-systems. The proposed SDMs were proved valid through the analysis of a typical case. The analysis results show that the SDM should, relying on natural resources, reasonably grasp the functions of ecological regulation and market regulation, and correctly handle the relationship between ecological benefit and economic benefit.

Modelling and Dynamic Analysis of Water Resource-Ecology-Economy System in Water Conservation Areas