| 引用本文: | 贾一帆,葛燕燕,李 升,等.干旱内陆区地下微咸水资源优化配置研究
—以英吉沙县为例[J].灌溉排水学报,2025,44(11):142-149. |
| JIA Yifan,GE Yanyan,LI Sheng,et al.干旱内陆区地下微咸水资源优化配置研究
—以英吉沙县为例[J].灌溉排水学报,2025,44(11):142-149. |
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| 摘要: |
| 【目的】评估不同矿化度水资源潜力，提出分级利用与调控策略，以缓解农业灌溉用水矛盾，实现区域水资源可持续利用。【方法】通过建立包气带水盐运移模型确定生态水位，厘清地下水空间分布特征，构建地下水流及溶质模型，区分不同地下水质可供水量，根据分质供水原则及混灌水量水质约束条件建立多目标地下微咸水资源配置模型，并用优化粒子群算法求解。【结果】现状年优化配置后灌溉水量由36 858×104 m3降为32 299×104 m3，利用3.0 g/L以上水量1 164×104 m3，地下水总水量开采程度从123%降至74%。【结论】优化配置结果极大的开发咸水灌溉潜力，推荐优化配置方案2为最佳开采方案，可减缓水位下降速率，并在2023年达不缺水状态，考虑压减灌溉面积等规划条件下适合长期开采，可避免土壤次盐渍化并减缓下降速率；优化配置方案为干旱区农业生产提供微咸水资源开采的理论依据。 |
| 关键词: 水质；地下微咸水；优化配置；背斜构造；灌溉水质约束 |
| DOI：10.13522/j.cnki.ggps.2025017 |
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| A review of paleoclimate reconstruction based on soil physical and chemical properties |
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JIA Yifan, GE Yanyan, LI Sheng, JIE Feilong
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1. Xinjiang University, Urumqi 830052, China; 2. Xinjiang Key Laboratory for Geodynamic Processes and
Metallogenic Prognosis of the Central Asian Orogenic Belt, Xinjiang University, Urumqi 830052, China;
3. Henan Fourth Geological and Mineral Resources Survey Institute Co., Ltd, Zhengzhou 450000, China
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| Abstract: |
| 【Objective】Groundwater is a vital resource for agricultural irrigation in arid regions, but excessive exploitation has led to over-mineralization, making water unsuitable for direct use. In the central part of Yingjisha County, the presence of an anticline has exacerbated over-extraction of confined water, resulting in elevated groundwater salinity in the north and limiting its agricultural applicability. This study evaluates the potential utilization of groundwater with varying salinity levels and proposes strategies for its sustainable use. 【Method】A water flow and solute transport model in the unsaturated zone was developed to analyze the spatial distribution of groundwater. Available water was classified according to quality, and a multi-objective water allocation model was established based on mass balance, constrained by irrigation demand and water quality. The optimization was solved using an improved particle swarm optimization algorithm. 【Result】Optimal allocation reduced annual irrigation water from 368.58 million m3 to 322.99 million m3 and enabled the use of 11.64 million m3 of groundwater with salinity exceeding 3.0 g/L. This approach also decreased the overall groundwater exploitation rate from 123% to 74%.【Conclusion】Optimal water allocation significantly enhances the utilization of brackish groundwater, mitigates groundwater table decline, and prevents irrigation water shortages. The findings provide a theoretical basis for sustainable management and efficient use of brackish groundwater for agricultural production in arid regions. |
| Key words: water quality; brackish underground; optimized configuration; anticline structure; irrigation water quality constraint |
