干旱区研究2025，Vol.42Issue(12)：2179-2194,16.DOI:10.13866/j.azr.2025.12.03
基于三层递阶结构模型的黑河中游大满灌区水资源优化配置
Optimized allocation of water resources in Daman Irrigation District in the middle reaches of Heihe River based on a three-layer recursive structural model
摘要
Abstract
Addressing the conflict between water supply and demand and the issue of groundwater over-exploita-tion in Daman Irrigation District of the middle reaches of the Heihe River,this study developed a three-layer hier-archical model structured as"crop growth period-management station-irrigation district."Methodologically,the model integrated the Jensen crop water production function to quantify crop yield-water relationships,dynamic programming to optimize water allocation across individual crop growth stages,and the A-NSGA-Ⅲ algorithm to coordinate water distribution for multiple crops among management stations and multi-source allocation at the ir-rigation district scale.With objectives including improving crop water demand thresholds,overcoming water source constraints(surface water and groundwater),and maximizing economic benefits,the model employed backward recursion and adaptive reference-point strategies to achieve global optimization,accounting for spatial heterogeneity across management stations and regional disparities in water endowment.The results demonstrated that,from 2026 to 2030,the total agricultural water use in the irrigation district decreased by 3.8％,with ground-water allocation reduced by 21.6％(from 0.5243×108 m3 to 0.4108×108 m3)and surface water use increased by 3.0％(from 1.4013×108 m3 to 1.4440×108 m3).Meanwhile,the overall economic benefit increased from 10.3447×108 CNY to 10.3830×108 CNY,a growth of 0.37％,confirming the achievement of"water savings without yield reduction."Spatially,northern stations such as Jiantan and Xiaduan,leveraging surface water advantages,were predicted to reach surface water usage proportions of 98％and 77％by 2030,significantly reducing dependence on groundwater.Meanwhile,southern stations like Nianlipu,constrained by topography,optimized water source ratios to meet crop demand while reasonably regulating groundwater usage.At the crop level,seed maize,field maize,seed pumpkin,and wheat reached yield saturation at irrigation levels of 525,625,450,and 475 mm,re-spectively,illustrating clear water demand thresholds and the law of diminishing marginal benefits.This study concludes that the three-layer hierarchical model significantly enhances the precision with which water is allocat-ed by synergizing patterns of crop water demand and regional water resources,effectively alleviating the typical contradiction between low utilization of surface water and over-exploitation of groundwater in arid irrigated ar-eas,and provides a scalable management paradigm of"top-down regulation and bottom-up feedback"for the sus-tainable management of water within agriculture.关键词
Jensen模型/A-NSGA-Ⅲ算法/水资源优化配置/节水灌溉/灌区Key words
Jensen model/A-NSGA-Ⅲ algorithm/optimal allocation of water resources/water-saving irriga-tion/irrigation district引用本文复制引用
CHEN Hainiu,CHEN Kun,HU Guanglu,TIAN Kaifu,JIN Taoyang,ZHU Haixia..基于三层递阶结构模型的黑河中游大满灌区水资源优化配置[J].干旱区研究,2025,42(12):2179-2194,16.基金项目
国家自然科学基金项目(41867074) （41867074）
甘肃省张掖市甘州区水资源费项目(甘区水务发[2024]237号) （甘区水务发[2024]237号）
甘肃省水利科学试验研究及技术推广项目(甘水建管发[2025]24号) （甘水建管发[2025]24号）
