| 引用本文: | 闫志雲,曾妍妍,周金龙,等.新疆塔里木盆地灌区地下水水质空间变化及其影响因素[J].灌溉排水学报,0,():-. |
| yanzhiyun,zengyanyan,zhoujinglong,et al.新疆塔里木盆地灌区地下水水质空间变化及其影响因素[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】研究新疆塔里木盆地灌区地下水水质空间变化及影响因素，为灌区地下水资源的开发利用和污染防治提供依据。【方法】依据1292组地下水水质检测资料，通过描述性统计分析方法和Piper三线图解法分析地下水化学组分特征及水化学类型，采用水质指数法、USSL图和Wilcox图解法分别对灌区地下水的饮用水质和灌溉水质进行了评价，运用克里金插值法、因子分析和离子比值等方法对灌区地下水水质空间变化及其影响因素进行了分析。【结果】山前砾质倾斜平原区地下水质量优于中下游的细土平原区，灌区地下水可溶性盐浓度过高，会加重土壤盐渍化；灌区地下水水质优劣排序为：单一结构潜水>承压水>承压水区潜水。【结论】因子分析结果表明灌区水质受蒸发浓缩和矿物溶解的复合作用、原生地质的氧化还原环境以及人为活动的影响，除此之外，还受到含水层类型、地下水补径排条件和阳离子交换作用的影响。 |
| 关键词: 地下水；质量评价；空间变化；因子分析；塔里木盆地灌区 |
| DOI： |
| 分类号:p641 |
| 基金项目:新疆自治区自然科学(2019D01B18)；国家自然科学基金资助项目(42067035)；“新疆水利工程安全与水灾害防治自治区重点实验室”2021年开放课题(ZDSYS-JS-2021-10)。 |
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| Spatial Changes of Groundwater Quality and Its Influencing Factors in the Irrigation Area of Tarim Basin, Xinjiang |
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yanzhiyun, zengyanyan, zhoujinglong, sunying
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Xinjiang Agricultural University
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| Abstract: |
| 【Objective】This paper analyzed the spatial changes of groundwater quality and influencing factors in the irrigation area of Tarim Basin in Xinjiang, and provided a basis for the development and utilization of groundwater resources and pollution prevention in the irrigation area.【Method】Based on 1292 sets of groundwater quality testing data, the groundwater chemical composition characteristics and groundwater chemistry types were analyzed by descriptive statistical analysis method and Piper trilinear diagram method. The water quality index method (WQI), USSL diagram and Wilcox diagram were used to evaluate the drinking groundwater quality and irrigation groundwater quality in the irrigation area. Kriging interpolation, factor analysis and ion ratio methods were used to analyze the spatial variation of groundwater quality in the irrigation area and its influencing factors.【Result】The groundwater quality of the gravelly sloped plain in front of the mountain was better than that of the fine soil plain in the middle and lower reaches. The soluble salt concentration of groundwater in the irrigation area was too high, which would aggravate soil salinization. The order of groundwater quality in irrigation areas was as follows: single structure unconfined groundwater>confined groundwater>unconfined groundwater in confined area.【Conclusion】The result of factor analysis showed that the groundwater quality of the irrigation area was affected by the combined effects of evaporation-concentration and mineral dissolution, the redox environment of the original geology, and human activities. In addition, it was also affected by the type of aquifer, groundwater recharge, runoff and discharge conditions, and cation exchange. |
| Key words: groundwater; quality evaluation; spatial variation; factor analysis; irrigation area of Tarim Basin |
