【作者】 李虎； 王立刚； 邱建军；

【Author】 Li Hu Wang Ligang Qiu Jianjun (Institute of Natural Resources and Regional Planning,CAAS,Beijing,100081)

【机构】 中国农业科学院农业资源与农业区划研究所；

【摘要】 全球范围内,非点源污染已成为水环境污染的主要原因,而农田土壤的氮素流失是非点源污染的重要表现形式。综合评述了近年来农田生态系统中氮素非点源污染的研究成果,农田非点源氮迁移过程及其影响因素,国内外对非点源氮素污染负荷的定量计算方法,并提出了相关的控制策略以及未来的研究方向。更多还原

【Abstract】 For the worldwide,non-point source(NPS)pollution has become the main cause for water environmental pollution,while the loss of nitrogen in cropland soils is important way of NPS pollution. The progress on NPS pollution caused by nitrogen from agro-ecosystem was reviewed in this paper,in- cluding the process of diffusion and movement of nitrogen,and its impact factors.Methods of NPS pollu- tion nitrogen load calculation were summarized.Meanwhile,control measures of NPS pollution were in- troduced and some suggestions were put forward so as to promote further research and control of NPS pol- lution.更多还原