scholarly journals Supplementary material to "Modeling the integrated framework of water resources system considering socioeconomic development, ecological protection, and food production: A practical tool for sustainable water uses"

2021 ◽  
Author(s):  
Yaogeng Tan ◽  
Zengchuan Dong ◽  
Xinkui Wang ◽  
Wei Yan
Keyword(s):  
Water Resources ◽  
Food Production ◽  
Socioeconomic Development ◽  
Water Resources System ◽  
Integrated Framework ◽  
Ecological Protection ◽  
Practical Tool ◽  
Supplementary Material ◽  
Water Uses

scholarly journals Identifying the dynamic evolution and feedback process of water resources nexus system considering socioeconomic development, ecological protection, and food security: A practical tool for sustainable water use

2021 ◽  
Vol 25 (12) ◽  
pp. 6495-6522
Author(s):  
Yaogeng Tan ◽  
Zengchuan Dong ◽  
Sandra M. Guzman ◽  
Xinkui Wang ◽  
Wei Yan
Keyword(s):  
Water Resources ◽  
Socioeconomic Development ◽  
Feedback Loops ◽  
Multi Objective Optimization ◽  
Feedback Process ◽  
Negative Feedback Loops ◽  
Ecological Protection ◽  
Coevolution Process ◽  
Water Uses ◽  
Sd Model

Abstract. The accelerated consumption of water resources caused by the rapid increase in population and urbanization is intensifying the complex interactions across water resources, socioeconomic development, ecological protection, and food security (WSEF), which causes not only the imbalance between water supply and demand but also the vulnerability of both food and ecological systems. Therefore, identifying the dynamic coevolution and feedback process is one of the most crucial ways of achieving the goal of sustainable water use. In this study, we developed an integrated modeling framework to better identify the dynamic interaction and coevolution process of the nexus across WSEF systems in the context of sustainable water uses by coupling system dynamic (SD) model and multi-objective optimization model. The SD model is used to simulate both the dynamic interaction of each agent and the coevolution process of the whole nexus system by positive/negative feedback loops. The multi-objective optimization model is used to quantify the negative feedback loops of the SD model by generating the optimal scheme of different water users. Finally, the model uncertainty considering different weighting factors is analyzed. The framework is applied to the upper reaches of the Guijiang River basin, China. Results show that (i) the rapid economic growth increases the conflict between the water uses for socioeconomic development and ecological protection, intensifying the ecological awareness and resulting in more water shortages of socioeconomic and food agents, which is unable to support such rapid development. (ii) Once the economic growth rate decreases, water resources are able to support economic development with a decreased overload index and stable crop yield, which further contributes to water sustainability. (iii) The river ecological agent is the critical factor that affects the robustness of the model. (iv) The equal consideration of each water usage is the most beneficial to sustainable development. These results highlight the importance of water resources management, considering the tradeoffs across multiple stakeholders, and give a strong reference to policymakers for comprehensive urban planning.

scholarly journals Modeling the integrated framework of water resources system considering socioeconomic development, ecological protection, and food production: A practical tool for sustainable water uses

2021 ◽  
Author(s):  
Yaogeng Tan ◽  
Zengchuan Dong ◽  
Xinkui Wang ◽  
Wei Yan
Keyword(s):  
Economic Growth ◽  
Water Resources ◽  
Socioeconomic Development ◽  
Dynamic Interaction ◽  
Modeling Framework ◽  
Multi Objective ◽  
Ecological Protection ◽  
Coevolution Process ◽  
Food Vulnerability ◽  
Water Uses

Abstract. The accelerated consumption of water resources caused by the rapid increase of population and urbanization is intensifying the negative interactions of water uses across socioeconomic development, ecological protection, and food productivity (SEF), which causes an imbalance between water supply & demand, ecological and food vulnerability, and further water unsustainability. To solve this problem, this study developed an integrated modeling framework to better identify the dynamic interaction and coevolution process of the nexus across SEF systems in the context of sustainable water uses by coupling two models: system dynamic model (SD) and multi-objective optimization model. First, the SD model is used to simulate both the dynamic interaction of each agent and the coevolution process of the whole system under external changes. Next, the multi-objective optimal model is used to generate the optimal scheme by iteration process with the initial scheme of SD, further identifying the dynamic interaction and coevolution process in terms of sustainable water use. Finally, the model uncertainty considering different weighting factors is analyzed. The framework is applied to the Upper Reaches of Guijiang River Basin, China. Results show that: (i) the rapid economic growth intensifies the ecological awareness and cannot support such rapid development because it rises the conflict between environment and economic water uses, resulting in more water shortages of socio-economy and food agent. (ii) Once the economic growth rate decreased, water resources are able to support economic development with decreased overload index and stable crop yield, which further contributes to water sustainability. (iii) The river ecological agent is the critical factor that affects the robustness of the model. (iv) The equal consideration of each water usage is the most beneficial to sustainable development. These results highlight the importance of water resources management considering the tradeoffs across multiple stakeholders and give a strong reference to policymakers for comprehensive urban planning.

Analysis of a Nepalese water resources system: stress, adaptive capacity and vulnerability

2009 ◽  
Vol 9 (2) ◽  
pp. 213-222 ◽  
Author(s):  
V. P. Pandey ◽  
M. S. Babel ◽  
F. Kazama
Keyword(s):  
Water Resources ◽  
Adaptive Capacity ◽  
Socioeconomic Development ◽  
High Stress ◽  
Dynamic Environment ◽  
Integrated Water Resources Management ◽  
Vulnerability Index ◽  
Environment Change ◽  
Water Resources System ◽  
Common Notion

It is widely accepted that water resources are vulnerable to socioeconomic development and environment change including climate change/variability. So, analyzing the type and extent of stresses (that render water a vulnerable resource) and the capacity of the system to adapt is necessary for integrated water resources management. This paper departs from the common notion that links vulnerability to water crisis, and analyzes a water resources system in the Bagmati River Basin (BRB) in Nepal from the perspective of both stress and adaptive capacity. The analysis is based on evaluation of eleven indicators, eight parameters, two sub-indices and an index. The situation analysis in basin and sub-watershed scale suggests considerable variation in parameter values and vulnerability index in different geographical (basin and sub-watershed) and spatial (three sub-watersheds) scales within the BRB, revealing the need for differential policy interventions based on scale. The northern sub-watershed in the BRB which has favourable climate for human settlement and cultivation, is more vulnerable than the southern sub-watershed. Relatively higher vulnerability in northern sub-watershed is due to high stress (related mainly to water scarcity) and low adaptive capacity (related mainly to low natural capacity). The comprehensive and easily interpretable finding is expected to help decision makers to reach sound solutions to reduce vulnerability of water resources system in the dynamic environment.

scholarly journals Evaluating Cryospheric Water Withdrawal and Virtual Water Flows in Tarim River Basin of China: An Input–Output Analysis

2021 ◽  
Vol 13 (14) ◽  
pp. 7589
Author(s):  
Yang Yang ◽  
Shiwei Liu ◽  
Cunde Xiao ◽  
Cuiyang Feng ◽  
Chenyu Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Socioeconomic Development ◽  
Virtual Water ◽  
Water Withdrawal ◽  
Tarim River ◽  
Tarim River Basin ◽  
Input Output ◽  
Output Analysis ◽  
Water Flows

In Tarim River Basin (TRB), the retreat of glacier and snow cover reduction due to climate warming threatens the regional economy of downstream basins that critically depends on meltwater. However, the quantitative evaluation of its impact on multiple sectors of the socioeconomic system is incomplete. Based on compiled regional input–output table of the year 2012, this study developed a method to analyze the relationships between economic activities and related meltwater withdrawal, as well as sectoral transfer. The results show that the direct meltwater withdrawal intensity (DMWI) of agriculture was much higher than other sectors, reaching 2348.02 m3/10,000 CNY. Except for A01 (agriculture) and A02 (mining and washing of coal), the embodied meltwater withdrawal (EMW) driven by the final demand of other sectors was greater than direct meltwater withdrawal, and all sectors required inflows of virtual water (72.45 × 108 m3, accounting for 29% of total supply from cryospheric water resources) for their production processes in 2012. For sectors with high DMWI, improving water-use efficiency is an effective way to reduce water withdrawal. To some extent, the unbalanced supply of cryospheric water resources due to geographical segregation can be regulated by virtual water flows from water-saving to water-intensive sectors. Such decisions can affect the balance between socioeconomic development and environment conservation for long-term sustainability.

Water-Resources System Optimal Control

1977 ◽  
Vol 10 (8) ◽  
pp. 139-146
Author(s):  
V. Priazhinskaya ◽  
Iosif Khranovich
Keyword(s):  
Optimal Control ◽  
Water Resources ◽  
Water Resources System ◽  
System Optimal

Beijing water resources and the south to north water diversion project

2005 ◽  
Vol 32 (1) ◽  
pp. 159-163 ◽  
Author(s):  
Duan Wei
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Demand ◽  
Socioeconomic Development ◽  
Water Environment ◽  
Water Saving ◽  
Water Diversion ◽  
The South ◽  
Water Diversion Project ◽  
North Water

Beijing is located in a semiarid region, and water shortage is a common problem in the city. Along with the rapid increase in water demand, due to fast socioeconomic development and an increase in population, a shortage of water resources and a deterioration of the water environment have become obstacles to sustainable socioeconomic development in Beijing. In the long run, sustainable water resources management, water conservation, and completion of the south to north water diversion project will solve the problem. This paper introduces the water resources situation in Beijing; analyzes future water demand; and discusses the actions of water saving, nontraditional water resources exploitation, wetland construction, and water environment protection. The paper also explains the importance of the south to north water diversion project and the general layout of the water supply strategy, water distribution system, and methods to efficiently use the diverted water in Beijing.Key words: water resources, water supply, water saving, water recycling, water diversion.

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