The cost of ending groundwater overdraft on the North China Plain
文献类型：SCI/SSCI论文
| 作者 | Davidsen C.; Liu, S. X.; Mo, X. G.; Rosbjerg, D.; Bauer-Gottwein, P. |
| 发表日期 | 2016 |
| 关键词 | surface-water supplies model-predictive control conjunctive-use optimization approach genetic algorithm management models simulation systems resources operation |
| 英文摘要 | Overexploitation of groundwater reserves is a major environmental problem around the world. In many river basins, groundwater and surface water are used conjunctively and joint optimization strategies are required. A hydroeconomic modeling approach is used to find cost-optimal sustainable surface water and groundwater allocation strategies for a river basin, given an arbitrary initial groundwater level in the aquifer. A simplified management problem with conjunctive use of scarce surface water and groundwater under inflow and recharge uncertainty is presented. Because of head-dependent groundwater pumping costs the optimization problem is nonlinear and non-convex, and a genetic algorithm is used to solve the one-step-ahead subproblems with the objective of minimizing the sum of immediate and expected future costs. A real-world application in the water-scarce Ziya River basin in northern China is used to demonstrate the model capabilities. Persistent overdraft from the groundwater aquifers on the North China Plain has caused declining groundwater levels. The model maps the marginal cost of water in different scenarios, and the minimum cost of ending groundwater overdraft in the basin is estimated to be CNY5.58 billion yr(-1). The study shows that it is cost-effective to slowly recover the groundwater aquifer to a level close to the surface, while gradually lowering the groundwater value to the equilibrium at CNY2.15 m(-3). The model can be used to guide decision-makers to economic efficient long-term sustainable management of groundwater and surface water resources. |
| 出处 | Hydrology and Earth System Sciences |
| 卷 | 20 |
| 期 | 2 |
| 页 | 771-785 |
| 语种 | 英语 |
| ISSN号 | 1027-5606 |
| DOI标识 | 10.5194/hess-20-771-2016 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/42910]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Davidsen C.,Liu, S. X.,Mo, X. G.,et al. The cost of ending groundwater overdraft on the North China Plain. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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