基于MODFLOW的河套灌区地下水位模拟及生态适宜地下水埋深分析

doi:10.3880/j.issn.10046933.2026.05.009

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基于MODFLOW的河套灌区地下水位模拟及生态适宜地下水埋深分析

DOI:

10.3880/j.issn.10046933.2026.05.009

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作者单位:

(1.河海大学水灾害防御全国重点实验室;2.河海大学长江保护与绿色发展研究院;3.河海大学水文水资源学院;4.河海大学地球科学与工程学院;5.南京工程学院环境工程学院;6.水利部应对气候变化研究中心;7.内蒙古自治区水利事业发展中心; 8.内蒙古自治区水利科学研究院; 9.内蒙古河套灌区水利发展中心 )

作者简介:

杨小强(1990—),男,教授,博士,主要从事水文学及水资源研究。E-mail:xq.yang@hhu.edu.cn

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内蒙古自治区“揭榜挂帅”项目(2023JBGS0003-02)；国家自然科学基金项目(52325902)

Simulation of groundwater level in the Hetao Irrigation District based on MODFLOW and analysis of ecologically suitable groundwater depth

Author:

Affiliation:

(1.State Key Laboratory of Water Disaster Prevention, Hohai University; 2.Yangtze Institute for Conservation and Development, Hohai University; 3.College of Hydrology and Water Resources, Hohai University; 4.School of Earth Sciences and Engineering, Hohai University; 5.School of Environmental Engineering, Nanjing Institute of Technology; 6.Research Center of Climate Change, MWR; 7.Inner Mongolia Water Conservancy Development Center; 8.Water Conservancy Research Institute of Inner Mongolia; 9.Water Conservancy Development Center of Hetao Irrigation District, Inner Mongolia)

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摘要:

针对长期引黄灌溉导致河套灌区土壤盐渍化、生态退化等问题,构建了河套灌区MODFLOW模型模拟地下水位的时空分布,利用潜水上升最大高度和作物根系深度量化了生态适宜地下水埋深阈值,分析了不同灌溉条件下地下水埋深的生态适宜情况。结果表明:2013—2022年河套灌区地下水位的模拟效果整体较好,多年平均相对误差小于0.5%,年平均地下水总补给量和总排泄量分别为11.90亿、12.52亿m³,处于弱负均衡状态；2022年灌溉条件下,除乌兰布和灌域外,大部分灌域的地下水埋深处于生态适宜范围内(1.46~2.96m)；减少10%和20%灌溉量情景下,作物生育期内大部分地区仍能维持生态适宜地下水埋深,而减少秋浇灌溉量会使地下水位显著下降。

Abstract:

In response to the problems of soil salinization and ecological degradation caused by long-term Yellow River diversion irrigation in the Hetao Irrigation District, a MODFLOW model was constructed to simulate the spatiotemporal distribution of groundwater level in the Hetao Irrigation District. The ecologically suitable groundwater depth threshold was quantified using the maximum height of groundwater rise and crop root depth, and the ecologically suitable situation of groundwater depth under different irrigation conditions was analyzed. The results showed that the simulation effect of groundwater level in Hetao Irrigation District from 2013 to 2022 was generally good, with an average relative error of less than 0.5% over the years. The annual average total groundwater supply and discharge were 1.190 billion m³ and 1.252 billion m³, respectively, in a weak negative equilibrium state. Under irrigation conditions in 2022, except for the Ulan Buh irrigation area, the groundwater depth of most irrigation areas was within the ecologically suitable range

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杨小强，茹泽宇，李琼芳，等.基于MODFLOW的河套灌区地下水位模拟及生态适宜地下水埋深分析[J].水资源保护,2026,42(5):81-89.(Yang Xiaoqiang, Ru Zeyu, Li Qiongfang, et al. Simulation of groundwater level in the Hetao Irrigation District based on MODFLOW and analysis of ecologically suitable groundwater depth[J]. Water Resources Protection,2026,42(5):81-89.(in Chinese))

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在线发布日期: 2026-10-27
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