Details

Autor(en) / Beteiligte

• Feng, Maoyuan
• Liu, Pan
• Li, Zejun
• Zhang, Jingwen
• Liu, Dedi
• Xiong, Lihua

Titel

Modeling the nexus across water supply, power generation and environment systems using the system dynamics approach: Hehuang Region, China

Ist Teil von

• Journal of hydrology (Amsterdam), 2016-12, Vol.543, p.344-359

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •The WPE nexus is modeled by using the system dynamics approach.•The coevolution process of WPE nexus is identified as four stages.•The dynamics of WPE nexus are interpreted for better understanding. Nexus approaches address the complex interconnections across coupled systems, providing a new and effective way to identify the dynamics of coevolution process. The connections across water supply, power generation and environment (WPE) systems are increasingly tight and thus can be profiled as a WPE nexus. This paper aims to model the WPE nexus in the China’s Hehuang Region by using the system dynamics approach. Six nonlinear ordinary differential equations of storage, water supply, power generation, population, biomass, and environmental awareness are formulated to dominate the coevolution process. Their constitutive relations are then obtained from observed data to complete the WPE nexus model. The results show that the system dynamics approach is competent in modeling the WPE nexus of the Hehuang Region. The coevolution process is divided into four cyclic stages (i.e., exploitation, deterioration, depression and recovery stages) and terminates with a stationary cycling after thousands of years. The dynamics of state variables are explicitly interpreted to show how different driving variables affect the variations of system states. The observations obtained by modeling the nexus are insightful, improving the understanding of interactions across coupled systems.