摘要
地下水是维持人类正常生产生活不可或缺的资源,是生态系统中重要的一部分。近年来,我国地下水污染趋势由点源向面源发展,污染范围广且难治理,水质较差,其中“三氮”的污染也较为严重,由于来源的复杂性,地下水氮污染问题在世界范围内已呈普遍现象。在查阅相关文献的基础之上,文章主要从“三氮”的迁移转化、地下水氮污染来源进行评述。包气带是地下水的补给通道,阐述了包气带土壤氮污染地下水主要受包气带的岩性、厚度及包气带中“三氮”的相互转化,地下水位波动和化学肥料等因素影响。
Groundwater is an indispensable resource to maintain human normal production and life and an important part of the ecosystem.In recent years,the trend of groundwater pollution has developed from point source to non-point source in China.The pollution range is wide and difficult to control,and the water quality is poor.The pollution of“three nitrogen”is also serious.Due to the complexity of the source,groundwater nitrogen pollution has been a common phenomenon in the world.Basis on the relevant literature view,the migration and transformation ofthreenitrogen and the source of groundwater nitrogen pollution was mainly reviewed.Moreover,Aerated zone is the recharge channel of groundwater.This paper expounds that the soil nitrogen pollution in the aerated zone is mainly affected by the lithology and thickness of the aerated zone,the mutual transformation of three nitrogen in the aerated zone,the fluctuation of groundwater level and chemical fertilizer.
作者
袁巧灵
刘静
李志萍
YUAN Qiao-ling;LIU Jing;LI Zhi-ping(School of Earth Science and engineering,North China University of Water Resources and Electric Power,Zhengzhou,450046;Hebei Institute of Water Resources,Shijiazhuang 050051,Hebei,China)
出处
《地下水》
2021年第2期30-32,40,共4页
Ground water
关键词
包气带土壤
氮污染
地下水
影响因素
Aerated zone soil
nitrogen pollution
groundwater
influencing factors
