Multi-objective optimal water resources allocation in the middle and upper reaches of the Huaihe River Basin (China) based on equilibrium theory

Abstract

In the river basin water resources allocation (WRA) problem, an unbalanced WRA poses challenges to water resources management departments. Many studies focus on achieving a lower water shortage rate while ignoring the equilibrium relationship among the socio-economic system, water resources system and eco-environmental system, as well as the equilibrium relationship among different regions. In this study, a water resources allocation model(WRAM) based on equilibrium theory is constructed to achieve the balance between different systems and different spaces in a basin. First, the relationship among the water resources system, socio-economic system and eco-environmental system is described. Then, the regional equilibrium index and system equilibrium index are constructed. Finally, the first model based on equilibrium theory is constructed. The results show that: (1) the Pareto Front reflects the contradictory relationship between economic development and environmental sustainability; (2) with the restructuring of industry and cropping, both economic efficiency and water shortage rates improve; (3) the equilibrium of the basin could also be further improved if water resources utilisation is further improved. Therefore, this study improves the existing WRAM, which can be applied to guide the water resources management of river basin.

Multi-disciplinary strategy to optimize irrigation efficiency in irrigated agriculture

“…[e.g., [9][10][11][12][13][14][15] ]. The scope of work was defined, designed, and briefed as follows: Reviewing appropriate documents and literature for background information; organizing field trips to project sites for data collection, discussions, and performance assessment; Exploring the vision of climate, water, food, and energy leaders, directors, officers, scholars, researchers, engineers, and project teams for expectable nexus outputs; Considering appropriate Climate Actions (CAs) and adequate water supplies for the farmers as the measures for agricultural development goal achievement; Outlining procedures to arrive at the equilibrium indicators in a report format that could be computerized for data collection and updating; Designing nexus key equilibrium indicators as shown in Fig.…”

Modeling Hydrologic–Economic Interactions for Sustainable Development: A Case Study in Inner Mongolia, China

“…where X Wtotal (t, d) is the total water usage in district d during year t, which is equal to the sum of the domestic water consumption X W popu (t, d) and the water used for production X Ws (t, d, s) in economic sector s. Equation (3) restrains water usage in each economic sector using the GDP of each sector, X GDP (t, d, s), and its water consumption quota, P Ws (t, d, s) [28], and correlates the ecological and economic sections. The objective X GREEN (t, d) is defined as the amount of water resources, which is the sum of the amounts of surface water X Wsu f (t, d), groundwater X Wground (t, d), and treated water X Wwtreated (t, d) after subtracting total water usage [1].…”

“…Specifically in China, the effects of water resources on the macroeconomy have been examined primarily through the impacts of water allocation and institutional reform. Considering water allocation, equilibrium theory was adopted to optimize water allocation and evaluate sectoral tradeoffs [28]. The economy-wide impacts of urban population growth and structural economic changes on water allocation have been demonstrated nationwide [29].…”

Assessment of Seasonal Surface Runoff under Climate and Land Use Change Scenarios for a Small Forested Watershed: Upper Tarlung Watershed (Romania)

“…Water is the central pillar of the circular development of society [11,14]. There is evidence that emphasizes climate and land use change as the main driving forces in influencing the water resources availability [15][16][17][18].…”