摘要
污水灌溉是污水土地处理、污水资源化和作物利用营养素的重要方式,但同时也是导致地下水氮污染的可能途径,本文在论述环境氮同位素示踪原理的基础上,建立了判别地下水中硝态氮来源的氮同位素示踪方法,并以此方法评价了北京城近郊区污水灌溉对地下水氮污染的影响,取得良好效果。
Irrigation with sewage is a major manner for land treatment w ith sewage,while it is also a possible path for groundwater to be polluted by nitrogen.Based on the expounding of tracing principle of environmental nitrogen isotope, a tracer technique of nitrogen isotope for discriminating the source of nitric nitrogen in groundwater is established.With this technique the influence of irrigation with sewage in the suburbs of Beijing to the pollution of groundwater nitrogen is evaluated and obvious results are obtained.
出处
《工程勘察》
CSCD
北大核心
1992年第4期37-41,共5页
Geotechnical Investigation & Surveying
基金
国家自然科学基金资助
