| 李家河水库污染物来源及水体分层对水质的影响 |
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| 引用本文： | 徐进,黄廷林,李凯,杨尚业,温成成,林子深,李衍庆,刘雪晴. 李家河水库污染物来源及水体分层对水质的影响[J]. 环境科学, 2019, 40(7): 3049-3057 |
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| 作者姓名： | 徐进 黄廷林 李凯 杨尚业 温成成 林子深 李衍庆 刘雪晴 |
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| 作者单位： | 西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055;西安建筑科技大学陕西省环境工程重点实验室,西安710055;西安建筑科技大学西北水资源与环境生态教育部重点实验室,西安710055 |
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| 基金项目： | 国家自然科学基金项目（51478378）；陕西省重点研发计划项目（2018ZDXM-SF-029）；陕西省教育厅重点实验室专项（16JS061） |
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| 摘 要： | 对污染物来源和水质演变规律的深入认识是水源水库水质污染控制的前提.李家河水库是西安市的重要水源地,为加强李家河水库水源地保护工作,于2016年12月～2017年12月逐月对李家河水库进行水质监测.结果表明,李家河水库的主要污染物来源是上游来水,其对高锰酸盐指数、TN和TP的贡献率分别达99. 52%、99. 41%和99. 23%;上游东采峪葛牌小学河段和草坪服务区以上河段污染负荷较高,西采峪主要污染源汇入点为养鸡场和渔场.夏秋季水库会形成热分层,水体稳定分层期,在外源污染汇入和底部厌氧释放双重作用下水体中TN、TP、高锰酸盐指数、TOC、Fe和Mn的质量浓度分别高达3. 32、0. 177、5. 21、3. 01、0. 21和0. 235 mg·L-1,其中TN、TP、Fe和Mn质量浓度均超过《地表水环境质量标准》(GB3838-2002)Ⅲ类水限值;较高的营养盐水平促进了藻类的大量繁殖,水体稳定分层期表层水体藻密度最高达到2. 18×108个·L-1,优势藻种为蓝藻门的铜绿微囊藻和束丝藻,对水质安全威胁较大.因此李家河水库水质污染控制的首要任务是采取有效措施控制藻类繁殖,同时加强水库上游污染源治理,降低污染物输入负荷.
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| 关 键 词： | 水源水库 污染物来源 水体热分层 水质演变 富营养化 |
| 收稿时间： | 2018-11-04 |
| 修稿时间： | 2019-01-20 |
Pollution Sources and the Stratification Effects on Water Quality in Lijiahe Reservoir |
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| XU Jin,HUANG Ting-lin,LI Kai,YANG Shang-ye,WEN Cheng-cheng,LIN Zi-shen,LI Yan-qing and LIU Xue-qing. Pollution Sources and the Stratification Effects on Water Quality in Lijiahe Reservoir[J]. Chinese Journal of Environmental Science, 2019, 40(7): 3049-3057 |
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| Authors: | XU Jin HUANG Ting-lin LI Kai YANG Shang-ye WEN Cheng-cheng LIN Zi-shen LI Yan-qing LIU Xue-qing |
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| Affiliation: | Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China,Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China and Key Laboratory of Environmental Engineering, Shaanxi Province, Xi''an University of Architecture and Technology, Xi''an 710055, China;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi''an University of Architecture and Technology, Xi''an 710055, China |
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| Abstract: | |
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| Keywords: | source water reservoir the source of pollutants thermal stratification evolution of water quality eutrophication |
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