太原市地下水中硝酸盐氮的空间分布特征及土地利用类型的响应  

Spatial Distribution Characteristics of Nitrate-nitrogen in Groundwater and Response of Land-use in Taiyuan City

作　　者：张明华 阎雪蕊 吉莉[1] 赵雅娜 李渊 Zhang Minghua;Yan Xuerui;Ji Li;Zhao Ya'na;Li Yuan(College of Environment and Resources,Taiyuan University of Science and Technology,Shanxi,046000)

机构地区：[1]太原科技大学环境与资源学院,山西046000

出　　处：《当代化工研究》2023年第8期26-28,共3页Modern Chemical Research

基　　金：太原科技大学研究生教育创新项目“太原市地下水中硝酸盐氮的时空分布特征及土地利用类型的响应”(项目编号:SY202031)。

摘　　要：地下水是干旱和半干旱地区饮用水的主要来源。在人类活动的影响下,硝酸盐已经成为了污染物之一。研究地下水硝酸盐氮(NO_(3)^(-)N)空间特征有助于水质管理和水资源可持续利用。本研究采集了2016年到2020年太原市地下水NO_(3)^(-)N浓度,分析土地利用类型对NO_(3)^(-)N的响应,研究结果显示:太原市民用井水NO_(3)^(-)N范围为0.1~43.3mg/L,城区NO_(3)^(-)N浓度显著高于郊区(P<0.001)。林地和草地下的NO_(3)^(-)N浓度高于建设用地的浓度,说明林地和草地可缓解建设用地和耕地下NO_(3)^(-)N污染。Groundwater is the main source of drinking water in arid and semi-arid regions.Nitrate has become one of the pollutants due to human activities.Studying the spatial characteristics of nitrate-nitrogen(NO_(3)^(-)N) in groundwater is helpful for water quality management and sustainable utilization of water resources.This research collected NO_(3)^(-)N concentration in groundwater of a typical heavy industrial city from 2016 to 2020,and analyzed the response of land-use types to NO_(3)^(-)N concentration.The results showed that the range of NO_(3)^(-)N in civil well water in Taiyuan City was 0.1~43.3 mg/L,and the concentration of NO_(3)^(-)N in urban area was significantly higher than that in suburban(P 0.001).The concentration of NO_(3)^(-)N under forest and grassland is higher than that of construction land,indicating that forest and grassland can alleviate NO_(3)^(-)N pollution under construction land and farmland.

关 键 词：地下水 硝酸盐氮 空间特征 土地利用 

分 类 号：X523[环境科学与工程—环境工程]