Next Article in Journal
The Use of Constructed Wetland for Mitigating Nitrogen and Phosphorus from Agricultural Runoff: A Review
Previous Article in Journal
An Overview of Flood Risk Analysis Methods
Previous Article in Special Issue
Infrastructure Shaming and Consequences for Management of Urban WEF Security Nexus in China and India
Open AccessArticle

Pre-Warning Measurement of Water Resources Security in the Yangtze River Basin from the Perspective of Water-Energy-Food Symbiosis

by 1 and 1,2,*
1
College of Economics and Management, Nanjing Forestry University, Nanjing 210037, China
2
Academy of Chinese Ecological Progress and Forestry Development Studies, Nanjing Forestry University, Nanjing 210037, China
*
Author to whom correspondence should be addressed.
Academic Editor: Larry Swatuk
Water 2021, 13(4), 475; https://doi.org/10.3390/w13040475
Received: 7 December 2020 / Revised: 25 January 2021 / Accepted: 9 February 2021 / Published: 12 February 2021
(This article belongs to the Special Issue Management of Water-Energy-Food Security Nexus)
The Yangtze River Basin is a resource axis represented by hydropower resources, bulk agricultural products, and mining resources. However, with rapid socio-economy development, the balance between water, energy, and food elements in the region has become more fragile. As the core element of the water-energy-food nexus, it is necessary to study water resources security and give effective pre-warning of possible water safety problems from the perspective of water-energy-food symbiosis. In this paper, we introduce the “symbiosis theory” to build a regional water-energy-food nexus symbiosis framework. Then, we establish a Lotka–Volterra symbiotic evolution model to calculate the symbiotic security index. Finally, we judge the water security state and pre-warning level and analyze the causes of water security problems by the inverse decoupling of the indicator-index. The results show that the spatial differentiation of water security in the Yangtze River Basin is obvious from the perspective of water-energy-food symbiosis. The state of water security in the middle and upper reaches of the Yangtze River Basin is better than that in the lower reaches. Specifically, the water resources security levels in the upstream hydropower energy enrichment regions are generally low. By contrast, the water systems of some downstream socio-economically developed provinces have certain risks. Therefore, each province needs to find out the key factors that hinder the healthy development of the water resources system based on combining the evolution mechanism and symbiotic state of water-energy-food so that water security can be managed in a targeted manner. View Full-Text
Keywords: Lotka–Volterra model; pre-warning measurement; water-energy-food symbiosis; water resources security; Yangtze River Basin Lotka–Volterra model; pre-warning measurement; water-energy-food symbiosis; water resources security; Yangtze River Basin
Show Figures

Figure 1

MDPI and ACS Style

Chen, W.; Chen, Y. Pre-Warning Measurement of Water Resources Security in the Yangtze River Basin from the Perspective of Water-Energy-Food Symbiosis. Water 2021, 13, 475. https://doi.org/10.3390/w13040475

AMA Style

Chen W, Chen Y. Pre-Warning Measurement of Water Resources Security in the Yangtze River Basin from the Perspective of Water-Energy-Food Symbiosis. Water. 2021; 13(4):475. https://doi.org/10.3390/w13040475

Chicago/Turabian Style

Chen, Weizhong; Chen, Yan. 2021. "Pre-Warning Measurement of Water Resources Security in the Yangtze River Basin from the Perspective of Water-Energy-Food Symbiosis" Water 13, no. 4: 475. https://doi.org/10.3390/w13040475

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop