【摘要】 对乌鲁木齐市地下水进行了分区取样 ,对氮的分布形式及特征进行了分析研究 ,通过统计计算及分析 ,对成因进行了推断 ,得出初步结论 :人口密集区氮的含量与大气污染及人的活动有关更多还原

【Abstract】 The underground water in Urumqi is taken samples, the forms and the characters of nitrogen are studied. Trough statistical caculation and analysis, the causes of formation are inferred. the preliminary conclusion, the content of nitrogen in densely populated areas relates to air pollution and activities of mankind, is drawed.更多还原