神东矿区矿井水灌溉适宜性空间分布特征
TD167%X824; 神东矿区位于我国西北地区,气候干旱,水资源匮乏,大量矿井水被用于矿区生态灌溉.针对矿井水灌溉适宜性,通过矿区矿井水现场采样和水化学测试,分析了水质参数的空间分布规律及水化学类型,分别应用钠离子吸附比(SAR)、可溶性钠百分比(KNa)、凯利比率(KR)、渗透率指数(PI)、残余碳酸钠(RSC)、镁吸附比(KMg)单指标法以及USSL图解法、Wilcox图解法进行了长期生态灌溉适宜性预测评价,同时结合矿区地下水位埋深、土壤质地类型以及气候条件,讨论了指标的适用性.研究结果表明,神东矿区矿井水中主要离子质量浓度排序,阳离子为Na+、Ca2+、Mg2+、K+,阴离子为HCO-...
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| Published in | 矿业科学学报 Vol. 9; no. 4; pp. 561 - 572 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
国家能源集团 煤炭开采水资源保护与利用国家重点实验室,北京 102211
01.08.2024
国能神东煤炭集团科技部,陕西榆林 719315 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 2096-2193 |
| DOI | 10.19606/j.cnki.jmst.2024.04.008 |
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| Abstract | TD167%X824; 神东矿区位于我国西北地区,气候干旱,水资源匮乏,大量矿井水被用于矿区生态灌溉.针对矿井水灌溉适宜性,通过矿区矿井水现场采样和水化学测试,分析了水质参数的空间分布规律及水化学类型,分别应用钠离子吸附比(SAR)、可溶性钠百分比(KNa)、凯利比率(KR)、渗透率指数(PI)、残余碳酸钠(RSC)、镁吸附比(KMg)单指标法以及USSL图解法、Wilcox图解法进行了长期生态灌溉适宜性预测评价,同时结合矿区地下水位埋深、土壤质地类型以及气候条件,讨论了指标的适用性.研究结果表明,神东矿区矿井水中主要离子质量浓度排序,阳离子为Na+、Ca2+、Mg2+、K+,阴离子为HCO-3、SO2-4、Cl-、NO-3;矿井水整体上呈弱碱性,Cl-、NO-3 离子浓度在空间上变化较显著;Na+、Cl-、SO2-4、溶解性总固体(TDS)、电导率(γ)之间、Ca2+与Mg2+之间存在较强的正相关性,F-与Ca2+、Mg2+之间具有一定的负相关性;矿井水主要水化学类型为NaHCO3 型,化学成分主要受到离子交换作用以及蒸发作用的影响;矿井水中Na+、SO2-4、Ca2+、Mg2+相对富集,且Cl-、F-、TDS和γ存在超标;矿区地下水和地表水渍涝共同影响下的盐分积累作用不明显,土壤板结问题不突出,PI法、USSL图解法不适宜本区灌溉水质评价;基于Wilcox图解法的评价结果,哈拉沟矿、石圪台矿及大柳塔井的矿井水适宜作为灌溉水,补连塔矿、上湾矿、布尔台矿、乌兰木伦矿及活鸡兔井的矿井水不宜长期直接用于灌溉.研究结果对于合理开发利用矿区矿井水资源具有理论与实际意义. |
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| AbstractList | TD167%X824; 神东矿区位于我国西北地区,气候干旱,水资源匮乏,大量矿井水被用于矿区生态灌溉.针对矿井水灌溉适宜性,通过矿区矿井水现场采样和水化学测试,分析了水质参数的空间分布规律及水化学类型,分别应用钠离子吸附比(SAR)、可溶性钠百分比(KNa)、凯利比率(KR)、渗透率指数(PI)、残余碳酸钠(RSC)、镁吸附比(KMg)单指标法以及USSL图解法、Wilcox图解法进行了长期生态灌溉适宜性预测评价,同时结合矿区地下水位埋深、土壤质地类型以及气候条件,讨论了指标的适用性.研究结果表明,神东矿区矿井水中主要离子质量浓度排序,阳离子为Na+、Ca2+、Mg2+、K+,阴离子为HCO-3、SO2-4、Cl-、NO-3;矿井水整体上呈弱碱性,Cl-、NO-3 离子浓度在空间上变化较显著;Na+、Cl-、SO2-4、溶解性总固体(TDS)、电导率(γ)之间、Ca2+与Mg2+之间存在较强的正相关性,F-与Ca2+、Mg2+之间具有一定的负相关性;矿井水主要水化学类型为NaHCO3 型,化学成分主要受到离子交换作用以及蒸发作用的影响;矿井水中Na+、SO2-4、Ca2+、Mg2+相对富集,且Cl-、F-、TDS和γ存在超标;矿区地下水和地表水渍涝共同影响下的盐分积累作用不明显,土壤板结问题不突出,PI法、USSL图解法不适宜本区灌溉水质评价;基于Wilcox图解法的评价结果,哈拉沟矿、石圪台矿及大柳塔井的矿井水适宜作为灌溉水,补连塔矿、上湾矿、布尔台矿、乌兰木伦矿及活鸡兔井的矿井水不宜长期直接用于灌溉.研究结果对于合理开发利用矿区矿井水资源具有理论与实际意义. |
| Abstract_FL | The Shendong mining area,located in Northwestern China,is characterized by a dry climate and scarce water resources.A large amount of mine water is used for ecological irrigation in this mining area.This study investigated the suitability of mine water for irrigation through on-site sampling and hydrochemical testing of mine water in the mining area.We analyzed the spatial distribution patterns of water quality parameters and hydrochemical types.This study also evaluated and predicted the suitabili-ty of long-term irrigation using sodium ion adsorption ratio(SAR),soluble sodium percentage(KNa),Kelly ratio(KR),permeability index(PI),residual sodium carbonate(RSC),magnesium adsorption ratio(KMg)single indicator methods,as well as USSL and Wilcox graphical methods.Taking into ac-count the groundwater level,we discussed soil texture types,climatic conditions of the mining area and the applicability of the evaluative indicators.The results show that the main ions in the mine water of Shendong mining area are sorted by mass concentration.The cations are Na+,Ca2+,Mg2+and K+,and the anions are HCO-3,SO2-4,Cl-and NO-3.The mine water is weakly alkaline as a whole,and the concen-trations of Cl-and NO-3 vary significantly with space.There was a significant positive correlation among Na+,Cl-,SO2-4,total dissolved solid(TDS),electric conductivity(γ),Ca2+and Mg2+,and a negative correlation between F-and Ca2+,Mg2+.The hydrochemical type of mine water in the mining area is pri-marily the NaHCO3 type.The chemical composition of mine water is mainly affected by ion exchange and evaporation.Na+,Cl-,SO2-4,Ca2+,Mg2+and F-in the mine water were abnormally enriched and the TDS and γ values exceeded the standard.The salt accumulation effect is not obvious under the com-bined influence of groundwater and surface water waterlogging in the mining area,and the soil compac-tion is not prominent.The PI method and the USSL graphic method are not suitable for evaluating irriga-tion water quality in this area.The evaluation results based on Wilcox graphical method show that the mine water of Halagou,Shigetai and Daliuta mines are suitable as irrigation water.The mine water from Bulianta,Shangwan,Buerta,Wulanmulun,and Huojitu mines should not be used for long-term direct ir-rigation.This study has theoretical and practical significance for the rational development and utilization of mine water resources in mining areas. |
| Author | 郭洋楠 |
| AuthorAffiliation | 国能神东煤炭集团科技部,陕西榆林 719315;国家能源集团 煤炭开采水资源保护与利用国家重点实验室,北京 102211 |
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| Author_FL | GUO Yangnan |
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| Keywords | 矿井水 水化学 hydrochemistry 神东矿区 irrigation water quality evaluation 灌溉水质 Shendong mining area mine water |
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