System Dynamics Modeling of Water–Energy Nexus for Resource-Saving Policy Assessment

Gozini, Hamid; Zahraie, Banafsheh; Ravar, Zeinab

doi:10.1007/s41742-021-00321-5

Cited by 13 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wen et al described the water-energy-food system from both the supply and demand sides and further explored the impacts of real policies designed by various government sectors in resource-based cities [22]. Gozini et al developed the SD-WE model to simulate the effectiveness of water-and energy-saving policies for strengthening resource security in central Iran [23]. Huang and Chang demonstrated how local weather affects water and energy utilization to grow vegetables in rooftop farming, which is regarded as a promising solution of sustainable urban agriculture [24].…”

Section: Literature Reviewmentioning

confidence: 99%

Systematic Modeling and Policy Analysis on the Urban Water–Energy Nexus for Sustainable Resources Management

2022

View full text Add to dashboard Cite

Urbanization in developing countries has imposed great pressure on the availability of water and energy (WE) resources, while single-sector strategies may cause several unanticipated consequences. To find sustainable solutions for resource management, this study develops an integrated approach to assess urban WE from a nexus perspective. With the city Shenzhen as a case study, the existing WE nexus on the supply and demand sides of urban areas is first quantified. Subsequently, a system dynamics model (SDM) is constructed to reveal the complex interactions in the urban nexus, and the trends of WE supply and demand by 2035 are simulated. To narrow the potential resources gap, a policy analysis considering the interest and influence of various stakeholders is conducted to formulate policy scenarios. As revealed from the results, the resources gap will expand continuously by 2035, especially for water resources. Compared to the demand side, the policies implemented on the supply side exhibit a better performance, and the scenario of import expansion could independently achieve the desirable result. Moreover, as the demand side displayed more complexities, the implementation of future policies should rigorously weigh the priorities and difficulties of a range of stakeholders’ involvements.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Systematic Modeling and Policy Analysis on the Urban Water–Energy Nexus for Sustainable Resources Management

2022

View full text Add to dashboard Cite

show abstract

“…Water resources and energy are two types of essential resources that are indispensable for the development of human society. The former, as a primary natural resource, plays a fundamental role in ensuring the survival of human beings, and the latter, as an important strategic resource, is vital to guaranteeing the security of the country and the development of the regional economy [1]. The health of ecosystems is closely linked to the sustainable use of water and energy resources.…”

Section: Introductionmentioning

confidence: 99%

Relationship Identification between Water-Energy Resource Utilization Efficiency and Ecological Risk in the Context of Assessment-Decoupling Two-Stage Framework—A Case Study of Henan Province, China

Zhong,

Zuo,

et al. 2023

Water

View full text Add to dashboard Cite

The situation of resource utilization and eco-environment protection remains critical globally. The harmony between eco-environment health and water-energy utilization efficiency is a strong support for the realization of high-quality development. In this paper, an Assessment-Decoupling two-stage framework was developed to investigate the relationship between water-energy resource utilization and ecological security. In detail, an improved input-output indicator system was constructed to assess the water-energy resource utilization efficiency (WEUE), and its influencing factors were examined from multiple system perspectives; then, we intended to evaluate the ecological risk (ER) from a raster-scale perspective based on land-use types; and finally, the decoupling idea was introduced to quantify the fitness relationship of the above two aspects. The framework was applied to Henan Province, China. The study found that: (1) the WEUE of Henan Province shows a “W” pattern of development during 2000–2020; in 2000–2010, the WEUE of South Henan declined, while in 2010–2020, the WEUE of Henan Province gradually improved, with significant increases in various districts. (2) The ecological risk index (ERI) in Henan Province generally shows a decreasing trend, and the spatial difference is more obvious, with the high-risk areas mainly concentrated in the central, east, and south Henan, and the west of Henan is mainly a low-risk area. (3) There is strong spatial variation in the decoupling states of WEUE and ERI of the 18 districts in Henan Province, and the differences become more pronounced over time. The number of districts with a strong negative decoupling state has been increasing during the entire period, and a total of 14 districts have reached the above state in 2020. The developed framework offers a new idea for clarifying the relationship between resource utilization and ecological conditions, and the obtained results can provide data support for the realization of sustainable development.

show abstract

“…Li et al [ 21 ] developed an SD model to describe the water resources vulnerability, which is affected by the water resources system and socio-economic system. Gozini et al [ 22 ] proposed a system dynamic model to investigate the water-energy nexus under various incentive policies. Legal, economic, technical and necessary administrative measures can coordinate regional water demand and available water supply effectively [ 3 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

A scenario analysis-based optimal management of water resources supply and demand balance: A case study of Chengdu, China

Zhou

Zhao

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Water resources scarcity has threatened the coordinative development of demographics, society and economy. As a typical rapidly urbanizing area and an emerging megacity in China, Chengdu is confronting the pressure of inadequate water supply. The present study divides the macroeconomic factors that affect the water resource supply and demand balance into six major subsystems: water resources supply, water demand, water drainage, population, ecological environment and economy. The combining variable interaction description and predictive simulation models are applied to simulate the water supply and demand ratio (S:D) from 2005 to 2035. Further, this study designs different development scenarios to simulate the change of S:D ratios by altering the parameter values of driving factors. The results show that: (1) the S:D ratio will decline if the current development scenario continues, implying the serious water resources shortage and the severe water supply-demand conflict in Chengdu; (2) socio-economic water demand and wastewater/rainwater reuse are the key driving parameters of S:D ratio, especially the water consumption per ten thousand yuan of industrial value-added; (3) the S:D ratio will increase from 0.92 in the current baseline scenario to 1.06 in the integrated optimization scenario in 2025, and the long-term planning brings 2035 from 0.71 to 1.03, with the proportion of unconventional water supply rise to 38% and 61%, respectively. This study can provide a decision-making tool for policy-makers to explore plausible policy scenarios necessary for bridging the gap between the water supply and demand in megacities.

show abstract

System Dynamics Modeling of Water–Energy Nexus for Resource-Saving Policy Assessment

Cited by 13 publications

References 25 publications

Systematic Modeling and Policy Analysis on the Urban Water–Energy Nexus for Sustainable Resources Management

Systematic Modeling and Policy Analysis on the Urban Water–Energy Nexus for Sustainable Resources Management

Relationship Identification between Water-Energy Resource Utilization Efficiency and Ecological Risk in the Context of Assessment-Decoupling Two-Stage Framework—A Case Study of Henan Province, China

A scenario analysis-based optimal management of water resources supply and demand balance: A case study of Chengdu, China

Contact Info

Product

Resources

About