| 大武水源地地下水中NO3-N动态变化特征及其影响因素分析 |
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| 引用本文： | 吴庆,郭永丽,翟远征,尹芝华,赵红亮,张军军,李常锁.大武水源地地下水中NO3-N动态变化特征及其影响因素分析[J].水文,2017,37(6):68-73. |
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| 作者姓名： | 吴庆 郭永丽 翟远征 尹芝华 赵红亮 张军军 李常锁 |
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| 作者单位： | 1.中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室2.北京师范大学水科学研究院地下水污染控制与修复教育部工程研究中心3.山东省地矿工程勘察院地下水资源与环境工程研究中心 |
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| 基金项目： | 国土资源部/广西壮族自治区岩溶动力学重点实验室开放课题/主任基金(KDL201505)；国家自然科学基金项目(41702277)；中国地质调查局项目(DD20160061)；山东省地下水资源与环境工程研究中心开放基金项目(201501001)； |
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| 摘 要： | 利用GIS空间分析平台的反距离权重法插值获取中国北方典型大武岩溶水源地年内和年际地下水中NO_3-N浓度空间分布特征,并利用斯皮尔曼相关系数获取2009年地下水中NO_3-N浓度与地下水脆弱性各影响因子的相关性。经分析可知:(1)综合以往研究资料,大武水源地地下水中NO_3-N演化过程分为恶化初期、恶化中末期和恢复阶段,且地下水水化学演化过程要滞后于地下水水动力过程的演化;(2)年内地下水中NO_3-N浓度的变化主要受到降水的影响,年际间地下水中NO_3-N浓度的时空变化特征很容易受到地下水系统动态因子的影响,包括地下水资源的开发利用和可变的下垫面条件;因此,人类活动朝着优化地下水环境的方向努力,可促进岩溶水资源的可持续开发利用。
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| 关 键 词： | 大武岩溶水源地 NO3-N 演化过程 降水 地下水系统动态因子 |
| 收稿时间： | 2016/12/2 0:00:00 |
Dynamic Variation Characteristics of NO3-N in Groundwater of Dawu Water Source and Influencing Factors |
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| WU Qing,GUO Yongli,ZHAI Yuanzheng,YIN Zhihu,ZHAO Hongliang,ZHANG Junjun,LI Changsuo.Dynamic Variation Characteristics of NO3-N in Groundwater of Dawu Water Source and Influencing Factors[J].Hydrology,2017,37(6):68-73. |
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| Authors: | WU Qing GUO Yongli ZHAI Yuanzheng YIN Zhihu ZHAO Hongliang ZHANG Junjun LI Changsuo |
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| Institution: | 1. Institute of Karst Geology, CAGS/Karst Dynamics Laboratory, MLR and GZAR, Guilin 541004, China; 2. College of Water Sciences, Beijing Normal University/Engineering Research Center of Groundwater Pollution Control and Remediation, Beijing 100875, China; 3. Research Center of Groundwater Resources and Environment, Shandong Geo-mineral Engineering Exploration Institute, Jinan 250014, China |
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| Abstract: | This paper used the Inverse Distance Weighted (IDW) based on GIS spatial analyst platform to obtain the spatial distribution characteristic of NO3-N of a typical karst water source in the North China, and used Spearman''s coefficient to obtain the relationship between the concentration of NO3-N in 2009 and various influencing factors of groundwater vulnerability. By combining with research data in the past, it can be known that the evolution process of NO3 -N in Dawu water source can be classified into early deterioration period, the mid -end deterioration period and the recovery stage, and the evolution process of groundwater chemicals lagged behind groundwater dynamics. It can be also concluded that the spatial distribution of NO3-N values in a year is mainly influenced by precipitation, while the spatial distribution of NO3-N values of inter-annual is easily influenced by dynamic factors of groundwater system including the exploration of groundwater resource and variable underlying surface conditions, the human activities develop in the direction of optimizing groundwater environment will promote the sustainable development of karst water resources. |
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| Keywords: | typical karst water source in Dawu NO3-N evolution process precipitation dynamic factors of groundwater system |
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