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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  06 Jul 2020

06 Jul 2020

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This preprint is currently under review for the journal HESS.

An integrated modeling framework for coevolution and feedback loops of nexus across economy, ecology and food systems based on the sustainable development of water resources

Yaogeng Tan1,2, Zengchuan Dong1, Sandra M. Guzman2, Xinkui Wang1, and Wei Yan3 Yaogeng Tan et al.
  • 1College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
  • 2Department of Agricultural and Biological Engineering, Indian River Research and Education Center, University of Florida, Fort Pierce, FL 34945, USA
  • 3School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China

Abstract. Sustainable development in water resources is becoming a hot topic in recent years. The world is facing the disequilibrium between the availability of resources and the increase in population with fast-growing economies and social development. This study proposes a new methodological framework of sustainable development of water resources based on the response linkages and feedback loops of economy-ecology-food (EEF) nexus. It provides a new way to identify the interconnection and coevolution process between these EEF. The multi-objective model and system dynamic (SD) model were coupled to characterize the interconnections between processes and their dynamic responses to a set of scenarios. The combination of decomposition-coordination method (DC) and dynamic programming was used to find the optimal scenario based on each component of the EEF nexus. The Upper reach of Guijiang River Basin (UGRB) was presented as a case study. Results showed that the coupled multi-objective model and SD model presented in this study are able to characterize the interactions and feedback between EEF systems adequately. Most importantly, the rapid growth rate of socio-economic indexes will drive the awareness of river ecology and showed a higher sensitivity under different decision preferences. The results provided in this study can provide baseline information for stakeholders and policymakers in the field of water management for a better understanding of the interactions across systems.

Yaogeng Tan et al.

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Yaogeng Tan et al.

Yaogeng Tan et al.


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Publications Copernicus
Short summary
With the rapid growth of population and economy, the utilization of natural resources (especially water resources) is expanding, leading to the deterioration of ecological and environmental health, which is unsustainable for both the earth and human being. This paper proposed a methodology for sustainable development of water resources considering socio-economy development, food safety and ecological protection. It can give references to policy makers for multiple departments.
With the rapid growth of population and economy, the utilization of natural resources...