摘要
农业非点源污染具有随机性大、分布范围广、危害性大等特点,已成为重要的环境污染方式。根据现场实测,分析了四川省彭州市丹景山镇不同作物田的总氮、总磷输出系数,探讨了不同作物及不同典型水文年输出系数形成差异的原因,完善了输出系数模型,为控制丹景山镇农业氮素、磷素的输出提供建议。
Agricultural non-point pollution has characteristics such as randomness, distribution range, harmfulness. It has become an important way of environmental pollution. Based on the in-situ measured data, the field of different crops total nitrogen and phos- phorus output coefficient of Danjingshan Town, Pengzhou City, is analyzed in this paper. And then, the reasons for the difference between the form output coefficient of different crops and different hydrology years is also discussed. Finally, some suggestions are put forward to improve the output coefficient model, and advice is given to control Agricultural non-point pollution of nitrogen, phos- phonium in Danjingshan City.
出处
《中国农村水利水电》
北大核心
2012年第8期58-61,共4页
China Rural Water and Hydropower
基金
水利部公益性行业科研专项(震区饮用水源污染物来源调查分析)(200901069-1)
关键词
非点源污染
氮磷
输出系数
agricultural non-point pollution nitrogen phosphorus output coefficient
