农业工程学报2026，Vol.42Issue(6)：117-128,12.DOI:10.11975/j.issn.1002-6819.202509250
基于地下水压采和粮食稳产的石津灌区地下水与地表水联合调配
Integrated allocation of groundwater and surface water resources in the Shijin Irrigation District for groundwater exploitation reduction and stable grain yield
摘要
Abstract
Water resource shortage and groundwater over-exploitation have been the primary limiting factors on sustainable agriculture in North China.It is often required for the balance between"Grain Yield Stabilization and Groundwater Extraction Reduction".This study aims to allocate groundwater and surface water resources for the groundwater exploitation reduction and stable grain yield.A case study was taken as the Shijin Irrigation District,Hebei Province,China.A process model was developed to strategically couple three models:SWAP,MODFLOW,and WEAP.A series of simulations were conducted to integrate with the water cycle.The framework was used to effectively capture the dynamic interactions between surface water,soil water,and groundwater.Four scenarios were designed for comparative analysis:the Current Scenario(S0),the Water-saving Irrigation Scenario(S1),the Planting Structure Adjustment Scenario(S2),and the Comprehensive Regulation Scenario(S3).The long-term simulations were then performed on the groundwater levels and crop yields from 2025 to 2036.An optimal allocation of multiple source water was formulated under these scenarios.The results indicated that the reliable performance was achieved to simulate the groundwater level,soil moisture content,and crop yield,with the determination coefficients(R²)of over 0.58.Compared with the Current Scenario(S0),the Water-saving Irrigation Scenario(S1)demonstrated the significant benefits:The annual water saving of the irrigation district reached 72 million m3,the amount of groundwater extraction reduction reached 46 million m3,while the groundwater level over the irrigation district raised cumulatively by approximately 3.5 m over the simulation period,and the total grain yield fluctuated within the range of 1.056 billion～1.126 billion kg.In the Planting Structure Adjustment Scenario(S2),the proportion of grain crops decreased from 70%to 60%,while the groundwater level exhibited a slow upward trend,and the grain yield remained stable at over 1 billion kg.Water-saving irrigation and adjustments were systematically integrated into various cropping patterns.An optimal mode was obtained suitable for the multiple source water allocation in the Shijin Irrigation District.Surface water was prioritized to supply from the Gangnan and Huangbizhuang reservoirs,whereas the groundwater served as a supplementary source.Compared with the current water allocation,the optimal mode raised the overall groundwater level of the irrigation district by about 4.68 m,and the fluctuation range of total grain yield was only 34 million kg,indicating both groundwater extraction reduction and grain yield stabilization.The research findings can provide the effective modeling on the water resources for the water-saving transformation and control of groundwater over-exploitation in similar multi-water-source irrigation districts in North China.关键词
地下水压采/水资源调配/石津灌区/灌区水循环模型/节水灌溉Key words
groundwater extraction reduction/water resources allocation/Shijin Irrigation District/irrigation district water cycle model/water-saving irrigation分类
农业科技引用本文复制引用
王慧琳,陈皓锐,贾志军,魏亮,苏磊,焦赏,王淮亮,协子昂,王景旭,余根坚..基于地下水压采和粮食稳产的石津灌区地下水与地表水联合调配[J].农业工程学报,2026,42(6):117-128,12.基金项目
河北省省级水利科技计划项目(2024-04) （2024-04）
中国水利水电科学研究院基本科研业务费专项项目(ID110145B0062025) （ID110145B0062025）
国家重点研发计划项目(2022YFD1900504) （2022YFD1900504）
