Optimal water allocation based on agricultural and environmental water value

Abstract

Despite the significant role of wetlands in maintaining a healthy ecosystem and providing various ecosystem services, they are under threat due to human activities and agriculture use. The fact that the economic value of ecosystem services is not considered in hydro-economic models and integrated water resources management is a key issue that affects the ecosystem and its degradation. the economic value of ecosystem services provides a quantitative and important basis for the reasonable management of water resources. Given that supplying the agriculture and environmental demands conflict with each other, achieving a balance between these goals is very important. So, in this study, a simulation-optimization (WEAP-PSO) approach is employed for optimal planning at the basin and designing environmental flow based on wetland ecosystem services. The objective function of the problem is considered to be the total economic value of the river, which includes the economic value of the agricultural sector and the economic value of the wetland ecosystem services. The decision variables of the problem are considered as, the cultivation area of agricultural units and environmental flow of Kani Barazan wetland. The results show that considering these two objectives together, in addition to sustainable development, causes the highest economic efficiency in the basin.

Fuzzy risk-based allocation of pollution load using extended trading-ratio system

“…The growth of population and industries has increased the pollution load discharge beyond the self-purification capacity of the river and endangered the river ecosystem (Karasakal et al 2020;Hatamkhani & Moridi 2021;Quan et al 2021Quan et al , 2022. Therefore, it is necessary to determine strategies to maintain environmental standards and reduce the cost of wastewater treatment (Ge et al 2019;Moridi 2019;Chen et al 2021;Li et al 2021bLi et al , 2021c.…”

“…A major part of the decision-making framework in the field of water resources management was dedicated to the development of quantitative-qualitative management models of river systems (Nikoo et al 2016;Li et al 2019;He et al 2021aHe et al , 2021b. In addition, river water quality control with economic approaches is an important part of quality management and environmental issues (Hatamkhani & Moridi 2021).…”