Sustainable operation of surface-groundwater conjunctive use systems in the agricultural sector

Journal of Water and Land Development

article

Tzu-Chia Chen¹  Tsung-Shun Hsieh²  Rustem A. Shichiyakh³ 

[1] Dhurakij Pundit University;Krirk University;Kuban State Agrarian University named after I.T. Trubilin, Department of Management

关键词: agriculture;    conjunctive use systems;    groundwater;    operating cost;    surface water;    water management;   

DOI  :  10.24425/jwld.2021.139011

学科分类：农业科学（综合）

来源: Instytut Technologiczno-Przyrodniczego / Institute of Technology and Life Sciences

【 摘 要 】

Several conjunctive use approaches can be distinguished. Drought cycling of groundwater (GW) usage and storage relies on more surface water (SW) during wetter years and delivers more water from GW during drought years. This method has the benefit of temporal changes in water availability. Additionally, it is usually desirable in areas with internal variability of SW where surface storage of wet-year surpluses is uneconomical, suffer excessive evaporative losses, or cause unacceptable environmental disruption. In previous studies, the purpose of operating the drought cycling was to reduce operating costs. In these studies, the objective function of the proposed model was to minimise the present value cost derived from the system design and operation to satisfy a predefined demand during a finite planning and operation horizon. However, it is important to consider other objectives in operating water resources systems, including minimising water shortages accurately. Hence, in this study, two scenarios were focused on: 1) mi-nimising water shortagages, 2) minimising operational costs. Pareto solutions are then presented with the objectives of minimising costs and water deficit. In this study, the weighting method has been used to extract Pareto options. The results show that reducing costs from 234 to 100 mln USD will increase water shortage from 9.3 to 11.3 mln m3.

【 授权许可】

Unknown