运用线性相关和逐步回归等方法，分析氮素污染特征的成因。
The linear correlation and the stepwise regression methods were used to analyze the cause of formation of the characteristics of the nitrogen pollution.
相似的政策也会对氮素污染者发挥作用，这已经对欧洲的碳素污染者和大陆架上的海底采矿者开始实施。
Similar rights could be given to nitrogen polluters, as they have been to carbon polluters in Europe, and to seabed miners on continental shelves.
当今农业地区灌溉施肥引起氮素对地下水的污染已成为人们普遍关注的环境问题。
At present, nitrogen pollution in the groundwater caused by fertilizer irrigation in the agricultural area has become an environmental problem of interest to the people.
坡地氮素淋溶是导致坡地土壤质量退化和农业非点源污染的重要原因之一。
Nitrogen leaching from a sloping land is one of the important causes of soil degradation and agricultural non-point source pollution.
氮素流入对水域的污染为非点源污染，主要导致地表水的富营养化、地下水硝酸盐含量过高等。
Nitrogen may cause non_point pollution in water in forms of eutrophication in surface waters and high nitrate concentration in ground water.
化肥，特别是化肥中氮素，在施用过程中有部分流入到环境中去，对环境造成污染。
When chemical fertilizers are applied to the fields, part of them passing into the environment, particularly nitrogen fertilizers, and leads to pollute environment.
提高小麦的氮素利用效率是优质、高产、高效、无污染作物生产急需解决的重要问题。
It is important for the crop production of high quality, yield, and efficiency and unpolluted to improve nitrogen use efficiency (NUE) in wheat.
提高小麦的氮素利用效率是优质、高产、高效、无污染作物生产急需解决的重要问题。
It is important for the crop production of high quality, yield, and efficiency and unpolluted to improve nitrogen use efficiency (NUE) in wheat.
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