摘要
通过监测奎河铜山地区沿岸浅层地下水中相关污染指标,得出浅层地下水中铵氮、亚硝态氮和浊度均超出Ⅲ类水标准,其中区域内浅层地下水铵氮污染十分严重。由于每年的6月至10月,研究区主要施加的肥料以铵肥为主,总体上造成浅层地下水中的铵氮较之其余时期下的铵氮浓度要高。高浓度的铵氮会通过对流和弥散作用影响邻近浅层地下水质。黏性土的存在对铵氮具有明显的截留作用,但在特定的条件下,可能会再次进入浅层地下水中,对浅层地下水造成铵氮污染。
According to the monitoring of shallow groundwater related pollution indices along the both sides of Kuihe River Tongshan sector, worked out that the ammonium nitrogen, nitrite nitrogen and turbidity in shallow groundwater are all exceeding groundwater quality standard category III, in which, the pollution of ammonium nitrogen is very serious. Since in the study area from June to Octo- ber, main manure spread is ammonium fertilizer, overall caused ammonium nitrogen in shallow groundwater higher than the rest months. High concentrated ammonium nitrogen will impact neighboring shallow groundwater quality through convection and dispersion. The existence of clayey soil has obvious interception on ammonium nitrogen, but under specific conditions, may enter again into shallow groundwater, and causing ammonium nitrogen pollution.
出处
《中国煤炭地质》
2017年第8期60-66,77,共8页
Coal Geology of China
基金
江苏省六大人才高峰项目资助(2014-JY-001)
关键词
地下水
铵氮污染
施肥
土壤特性
Kuihe River
groundwater
ammonium nitrogen pollution
manure spread
soil characteristics
