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Hurtado AR, Mesa-Pérez E, Berbel J. Systems Modeling of the Water-Energy-Food-Ecosystems Nexus: Insights from a Region Facing Structural Water Scarcity in Southern Spain. ENVIRONMENTAL MANAGEMENT 2024; 74:1045-1062. [PMID: 39271532 PMCID: PMC11549115 DOI: 10.1007/s00267-024-02037-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 08/19/2024] [Indexed: 09/15/2024]
Abstract
The complex relationship between water, energy, food, and ecological systems, known as the WEFE nexus, has emerged as a major topic in the debate about sustainable economic development and resource management. This subject is of special interest in Mediterranean coastal areas as rapid economic expansion driven by population growth, higher influx of tourists, and intensification of agriculture is leading to structural water scarcity conditions. However, addressing the diverse range of issues associated with the nexus is a difficult task due to the existence of intricate interconnections, interdependencies, and nonlinearities within and across its various components. Accordingly, this case study applies a combination of participatory systems modeling and network analysis tools to yield insights into the complexity of this nexus in Axarquia, a region with features that make it an example of water-stressed jurisdictions in the Mediterranean. Overall, our results provide a strong foundation to understand the dynamics that govern this nexus in regions where the availability of freshwater resources is a significant concern. Furthermore, they lay the groundwork for the development of models and scenarios to simulate the impact of various policies and interventions on the overall system.
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Affiliation(s)
- Antonio R Hurtado
- Water, Environmental and Agricultural Resources Economics (WEARE) Research Group, Department of Agricultural Economics, Universidad de Córdoba, Campus Rabanales Building C5, 14014, Córdoba, Spain.
| | - Enrique Mesa-Pérez
- Departamento de Economía Financiera y Contabilidad, Universidad Loyola Andalucía, 41704, Dos Hermanas (Sevilla), Spain
| | - Julio Berbel
- Water, Environmental and Agricultural Resources Economics (WEARE) Research Group, Department of Agricultural Economics, Universidad de Córdoba, Campus Rabanales Building C5, 14014, Córdoba, Spain
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Wu K, Wen H, Wang T, Chen M, You L, Liu Y, Zhang J, Li Y, Huang G. Water rights trading planning and its application in water resources management: A water-ecology-food nexus perspective. ENVIRONMENTAL RESEARCH 2024; 249:118377. [PMID: 38331150 DOI: 10.1016/j.envres.2024.118377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/15/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024]
Abstract
Nexus approach provides an effective perspective for implementing synergetic management of water resources. In this study, an interval two-stage chance-constrained water rights trading planning model under water-ecology-food nexus perspective (ITCWR-WEF) is proposed to analyze the interaction between water trading and water-ecology-food (WEF) nexus, which fills in the water resources management gaps from a novel nexus perspective. ITCWR-WEF incorporates hydrological simulation with soil and water assessment tool (SWAT), water rights configuration with interval two-stage chance-constrained programming (ITCP), and multi-criterion analysis with Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS). The developed ITCWR-WEF is applied to a real case of Daguhe watershed, which has characteristics of water scarcity, food producing areas and fragile ecosystem. Initial water rights allocation is addressed before the trading. Mechanisms analysis is designed to reveal mutual effect of water rights trading and WEF nexus. Optimal water management scenario is identified through multi-criterion analysis. Results reveal that the mechanism of water rights trading with WEF nexus under low constraint-violation risk level of water availability and environment capacity is recommended to promote the rational water resources allocation to balance the economic goals, water environment and water supply security, as well as ecological and food water demand guarantees.
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Affiliation(s)
- Kexin Wu
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Hongqi Wen
- Qingdao Water Affairs Development and Service Center, Qingdao, Shandong 266071, China
| | - Taishan Wang
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Mingshuai Chen
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Li You
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy Sciences, Beijing 100085, China
| | - Yanyan Liu
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China.
| | - Junlong Zhang
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China.
| | - Yongping Li
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Guohe Huang
- Professor and Canada Research Chair, Environmental Systems Engineering Program, Faculty of Engineering and Applied Science, University of Regina, Regina, Sask. S4S 0A2, Canada
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Wang H, Liu Y, Wang Y, Yao Y, Wang C. Land cover change in global drylands: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160943. [PMID: 36526201 DOI: 10.1016/j.scitotenv.2022.160943] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
As a sensitive region, identifying land cover change in drylands is critical to understanding global environmental change. However, the current findings related to land cover change in drylands are not uniform due to differences in data and methods among studies. We compared and judged the spatial and temporal characteristics, driving forces, and ecological effects by identifying the main findings of land cover change in drylands at global and regional scales (especially in China) to strengthen the overall understanding of land cover change in drylands. Four main points were obtained. First, while most studies found that drylands were experiencing vegetation greening, some evidence showed decreases in vegetation and large increases in bare land due to inconsistencies in the datasets and the study phases. Second, the dominant factors affecting land cover change in drylands are precipitation, agricultural activities, and urban expansion. Third, the impact of land cover change on the water cycle, especially the impact of afforestation on water resources in drylands, is of great concern. Finally, drylands experience severe land degradation and require dataset matching (classification standards, resolution, etc.) to quantify the impact of human activities on land cover.
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Affiliation(s)
- Hui Wang
- School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Yanxu Liu
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.
| | - Yijia Wang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Ying Yao
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Chenxu Wang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
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Xu K, Chi Y, Ge R, Wang X, Liu S. Land use changes in Zhangjiakou from 2005 to 2025 and the importance of ecosystem services. PeerJ 2021; 9:e12122. [PMID: 34631313 PMCID: PMC8465993 DOI: 10.7717/peerj.12122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 08/16/2021] [Indexed: 11/20/2022] Open
Abstract
Changes in local land use affect regional ecological services, development planning, and optimal use of space. We analyzed the effects of changes in land use from 2000 to 2025 on the spatial distribution of ecosystem services using CLUS-S modeling to evaluate ecosystem functions in Zhangjiakou, China. We found that the urban ecosystem area in Zhangjiakou increased and farmland decreased between 2000-2025. Water conservation was relatively high and was concentrated in the nature reserves of southern Zhangjiakou. Soil conservation was mainly distributed in eastern and southern counties. The results of the CLUE-S model showed that the relative operating characteristics of the six land use types were > 0.70, and the logistic regression equation was able to successfully explain the distribution pattern of the different types of land use.
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Affiliation(s)
- Kaipeng Xu
- Center of Eco-Environmental Zoning, Chinese Academy of Environmental Planning, Beijing, China
| | - Yanyan Chi
- Center of Eco-Environmental Zoning, Chinese Academy of Environmental Planning, Beijing, China
| | - Rongfeng Ge
- Center of Eco-Environmental Zoning, Chinese Academy of Environmental Planning, Beijing, China
| | - Xiahui Wang
- Center of Eco-Environmental Zoning, Chinese Academy of Environmental Planning, Beijing, China
| | - Siyang Liu
- Center of Eco-Environmental Zoning, Chinese Academy of Environmental Planning, Beijing, China
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Analysis of Ecosystem Service Trade-Offs and Synergies in Ulansuhai Basin. SUSTAINABILITY 2021. [DOI: 10.3390/su13179839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
As an important grain production base and ecological barrier zone in China, Ulansuhai Basin provides a variety of important ecosystem services and ensures human well-being, and it is essential to maintain the sustainable development of the regional ecology–economy–society. Therefore, in order to explore the trade-offs and synergies between ecosystem services in Ulansuhai Basin, we first evaluated the spatio-temporal characteristics of five ecosystem services in 2000, 2005, 2010, 2015, and 2018 based on the InVEST model, including soil conservation, carbon storage, water production, water purification, and food supply. We then further analyzed the trade-offs and synergies of ecosystem services in Ulansuhai Basin and in different functional areas through using the Spearman correlation coefficient. The results show that different ecosystem services had obvious regional differences due to different land-use types in Ulansuhai Basin. Soil conservation, carbon storage, and water production were higher in the eastern region and lower in the central and western regions, while water purification and food supply were higher in the central region and lower in the eastern and western regions. Ecosystem services showed an overall increasing trend from 2000 to 2018. Moreover, trade-off was the dominant relationship between different ecosystem services, and trade-offs and synergies showed strengthening trends to a certain extent. The trade-offs and synergies of ecosystem services in different functional areas were obviously different. Our study aimed to clarify the trade-offs and synergies between ecosystem services and to propose ecological protection and management countermeasures and suggestions, which can provide decision-making reference for regional ecological protection and management.
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