| 引用本文: | 帅官印,邵景力,崔亚莉,等.农业限水灌溉对地下水恢复的影响研究——以河北省石家庄平原区为例[J].灌溉排水学报,0,():-. |
| Shuai Guanyin,Shao Jingli,Cui Yali,et al.农业限水灌溉对地下水恢复的影响研究——以河北省石家庄平原区为例[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】为了探究农业限水灌溉对地下水位和水量的恢复效果,【方法】采用GMS软件建立河北省石家庄平原区地下水流模型,依据前人研究成果,选取冬小麦减产率低于20%时,石家庄平原各行政区在不同降水水平下,优化得到的限水灌溉组合作为模拟方案,并在规划压采的基础上对选定的限水灌溉方案进行模拟预测。【结果】结果表明：与现状开采和规划压采情景相比,农业限水灌溉措施实施后,绝大部分行政区浅层地下水平均水位开始上升,区域浅层地下水位年均上升0.17m/a,但深层地下水位依然呈现下降趋势；平原区地下水整体由负均衡扭转为正均衡,2019-2028年浅层和深层含水层总储变量为1×108m3/a；而相比只采用单一规划压采措施,添加了限水灌溉措施后,储变量恢复率提高了约2.1倍,浅层地下水平均水位恢复率提高了2倍。【结论】限水灌溉对于地下水恢复效果明显,研究结果可为未来实现农业水资源可持续利用提供参考。 |
| 关键词: 农业限水灌溉;数值模拟;地下水压采;采补平衡;粮食安全 |
| DOI： |
| 分类号:S274.1 |
| 基金项目: |
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| The Effects of water limited irrigation of agriculture on groundwater Recovery: A Case Study of Shijiazhuang Plain in Hebei Province |
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Shuai Guanyin1, Shao Jingli2, Cui Yali2, Zhang Xian2, Li Dou3
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1.School of Water Resources and Environment, China University of Geosciences (Beijing);2.China University of Geosciences (Beijing);3.Hebei Institute of hydrological engineering geology
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| Abstract: |
| 【Objective】This paper explored the effect of water limited irrigation of agriculture on the recovery of groundwater level and storage. 【Method】The software of GMS was used to establish the groundwater flow model in Shijiazhuang plain of Hebei Province. The optimized schemes of water limited irrigation in Shijiazhuang plain, whose yield reduction rate of winter wheat is less than 20%, were selected as the simulation schemes under different levels of precipitation, according to the previous research results. Meanwhile, based on the scheme of reducing groundwater exploitation, the selected schemes of water limited irrigation were simulated and predicted. 【Result】The results show that the average water level of shallow groundwater in most regions begins to rise after using the water limited irrigation measures, compared with the two conditions of the current exploitation and reducing groundwater exploitation. And the average annual increase of regional shallow groundwater level is 0.17m/a. But deep groundwater level still shows a downward trend. Besides, the groundwater in the plain area has changed from negative equilibrium to positive equilibrium, and the total storage variation of shallow and deep aquifers from 2019 to 2028 is 1×108m3/a. the recovery rate of storage variation and average water level of shallow groundwater are increased by about 2.1 and 2 times respectively after adding the water limited irrigation measure, compared with the single measure of reducing groundwater exploitation. 【Conclusion】 The effect of water limited irrigation measure on groundwater recovery is good and the results can provide a reference for promoting the sustainable utilization of agricultural water resources in the future. |
| Key words: Water limited irrigation of agriculture; Numerical simulation; Reducing groundwater exploitation; Groundwater equilibrium; Food safety |
