玉米和草药种植对地表径流污染状况调查研究  

作　　者：张雷 

机构地区：[1]辽宁省生态环境监测中心,辽宁沈阳110161

出　　处：《环境保护与循环经济》2022年第7期65-67,共3页environmental protection and circular economy

摘　　要：为了解玉米和草药种植对地表径流污染程度,开展了在作物生长周期施加化肥、农药所引入的氮、磷等污染物对地表径流污染状况的调查研究。结果表明,草药和玉米种植在降雨时对形成的径流水质有影响,与降雨强度成正比,与种植种类无关;降雨形成径流过程中,径流中期水质污染物浓度高于前期和后期;施肥后,其首次降雨产生的径流水质受污染程度最大,其后随着时间的推移受污染程度逐渐减小;降雨形成径流对河流水质有一定的影响,其中总氮最为突出。In order to understand the pollution degree of surface runoff caused by corn and herbal medicine planting,this paper carried out the investigation and research on the pollution of surface runoff caused by nitrogen,phosphorus and other pollutants introduced by the application of chemical fertilizer and pesticide in the crop growth cycle.The results showed that the planting of herbal medicine and corn had an effect on the runoff quality,which was directly proportional to the rainfall intensity and had nothing to do with the planting type;in the process of rainfall runoff,the concentration of water pollutants in the middle stage of runoff is higher than that in the early and late stage;after fertilization,the runoff water quality produced by the first rainfall is most polluted,and then the pollution degree decreases gradually with the passage of time;runoff formed by rainfall has a certain impact on river water quality,of which total nitrogen is the most prominent.

关 键 词：面源污染 玉米 草药 地表径流 

分 类 号：X832[环境科学与工程—环境工程]