【摘要】 黄河穿兰州城而过,为城市的发展提供了丰富的水源。同时,大量的污染物排放到河中,造成不同河段的污染。本文以1991-2000年的统计资料,主要从化学和生物两个角度来分析黄河兰州段的水质污染状况,并运用SPSS统计软件分析了两者的相关关系。最后得出黄河兰州段以生物、有机污染为主。就此提出减少废水排放量(尤其是工业废水)是控制黄河兰州段水质的关键。更多还原

【Abstract】 The city through which Yellow River flows, Lanzhou obtains large quantity of water resources from the river for the city development. Meanwhile, a lot of contaminant has been discharged into the river, resulting in pollution in different parts of the river. According to the statistics gleaned from 1991 to 2000, this paper analyses the state of water pollution along Lanzhou reaches, mostly in terms of chemistry and biology, and analyses the correlation between the two angles by applying SPSS statistic software, drawing the conclusion that the pollution along Lanzhou reaches of Yellow River is mainly biological and organic pollution. The paper holds that reducing discharge of waste water (especially industrial waste water) is the key to ensuring the quality of river water along Lanzhou reaches.更多还原