挠力河流域地下水氮污染特征分析  

Analysis of characteristics of groundwater nitrogen pollution in Naoli River Basin

作　　者：贾卓[1] 杨国华 张赫轩[1] 杜新强[1] 王锋[1] JIA Zhuo;YANG Guohua;ZHANG Hexuan;DU Xinqiang;WANG Feng(College of Environment and Resources,Jilin University,Changchun Jilin 130021;Zhengzhou Trade and Industry School,Zhengzhou Henan 450007)

机构地区：[1]吉林大学环境与资源学院,吉林长春130021 [2]郑州工业贸易学校,河南郑州450007

出　　处：《环境污染与防治》2018年第4期418-422,434,共6页Environmental Pollution & Control

基　　金：国家重点研发计划项目(No.2017YFC0406002)

摘　　要：挠力河流域是我国重要的粮食供应基地,随着农业现代化的发展,农田施肥量不断增加,地下水中氮浓度逐年升高。对挠力河流域2011—2013年地下水样品中三氮的空间分布、时间变化,三氮之间的相关性及其成因进行了分析。结果表明:挠力河流域地下水氮污染区主要分布在农业活动较为活跃的地区,同时还会受地下水径流条件的影响;研究区地下水硝态氮与氨氮浓度在丰水期高于枯水期;地下水中氨氮和硝态氮的相关性受包气带厚度的影响而呈现不同的结果。Naoli River Basin is an important food supply base in China.With the development of agricultural modernization and the increasing of fertilizer using,the nitrogen concentration in groundwater is increasing year by year.Characteristics of spatial distribution of the three nitrogen pollution in the area and its variation with time,the relationship between the concentration of the three nitrogen and its causes were analyzed based on the monitor data of groundwater quality from 2011 to 2013.The results showed that the three nitrogen contaminated areas of Naoli River Basin were mainly distributed in areas where agricultural activities were more active and they were also influenced by groundwater runoff conditions;the three nitrogen concentration in groundwater of the study area was higher in wet season than that in dry season.In addition,the correlation of pollution trends between ammonia nitrogen and nitrate nitrogen in groundwater was influenced by the unsaturated zone thickness.

关 键 词：挠力河流域 地下水 氮污染 

分 类 号：X523[环境科学与工程—环境工程]