| 引用本文: | 陈沛源,李金文,俞巧,等.基于SWAT模型的泾河流域地下水分布特征与水资源评价[J].灌溉排水学报,0,():-. |
| CHEN Peiyuan,LI Jinwen,YU Qiao,et al.基于SWAT模型的泾河流域地下水分布特征与水资源评价[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】合理规划与可持续开发利用地下水资源。【方法】选取泾河流域为研究对象，利用SWAT分布式水文模型进行了径流模拟，采用泾川（三）站、杨家坪（二）站和张家山（二）站逐月实测径流量进行模型参数率定，在此基础上对泾河流域浅层地下水分布特征、地下潜水储量和可开采量进行了初步评价。【结果】研究区模型表现良好，R2和NS分别达到0.83和0.71，满足要求。流域地下水储量分布差异较大，储量下降严重，2009-2016年下降约65.9亿m3，下降速率为0.51亿m3/月。地下水资源评价结果表明，泾河流域平均补给量为3.44亿m3/a，平均地下径流模数为0.21L/s·km2，总体可开采量为1.89亿m3/a。【结论】SWAT模型在进行地下水资源评价方面具有良好的评价效果和精度。 |
| 关键词: 泾河流域;SWAT模型;地下水分布特征;地下水资源评价 |
| DOI： |
| 分类号:P641 |
| 基金项目:兰州大学中央高校基本科研业务费专项资金资助F(lzujbky-2021-sp20) |
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| Groundwater distribution characteristics and water resources evaluation of Jinghe Basin based on SWAT model |
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CHEN Peiyuan1, LI Jinwen2, YU Qiao2, GUO Jiabing2, MA Jinzhu2
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1.兰州大学;2.Lanzhou University
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| Abstract: |
| 【Background】The situation of water resources in China is serious, especially the over-exploitation of water resources in the north, which restricts the sound development of social economy.【Objective】Groundwater resources are important resources related to ecological security and social security in arid and semi-arid regions. Reasonable planning and sustainable development and utilization are the prerequisites for the harmonious coexistence of man and nature and the stable development of regional socio-economics. 【Method】In this study, the Jinghe River Basin was selected as the research object, the SWAT distributed hydrological model was used to simulate the runoff, and the Jingchuan (3) station, Yangjiaping (2) station, and Zhangjiashan (2) station were used to measure the monthly runoff as model parameters. Based on the calibration, a preliminary evaluation was made on the distribution characteristics of shallow groundwater, underground phreatic reserves, and recoverable amounts in the Jinghe River Basin. 【Result】The model in the study area performed well, with R2 and NS reaching 0.83 and 0.71, respectively, which met the simulation requirements. The distribution of underground phreatic reserves in the basin is quite different, and the phreatic reservoir reserves have declined severely. During the seven years from 2009 to 2016, the decline was about 6.59 billion m3, and the rate of decline was 0.051 billion m3/month. The evaluation results of groundwater resources show that the average recharge of the Jinghe River Basin is 0.344 billion m3/a, the average underground runoff modulus is 0.21 L/s·km2, and the overall extractable volume is 0.189 billion m3/a. 【Conclusion】SWAT model has good evaluation effect and accuracy in groundwater resource evaluation. The evaluation results provide simulation methods and hydrogeological parameters support for the groundwater resources evaluation in the Jinghe River Basin. |
| Key words: Jinghe River Basin;SWAT model;Groundwater distribution characteristics;Evaluation of groundwater resources |
