人工降雨对地表污染物的冲刷规律及洗尘效果研究

Study on Erosion Law and Effect of Artificial Rainfall on Surface Pollutants

针对人工降雨对地表污染物的冲刷规律及洗尘效果展开研究。首先,通过建立冲刷模型深入分析了人工降雨对地表污染物冲刷能力的影响因素,计算地表污染物的冲刷速度、集流时间、有效降雨强度、平均地表污染物量、人工降雨深度、地表污染物附着浓度、冲刷系数等参量,从而得到人工降雨对地表污染物的冲刷规律。结合CA-FCM算法对人工降雨作业区域进行网格划分,利用F检验规则对其除尘效果进行准确评价。实验结果表明人工降雨对于降低地表污染物含量、保护地表生态环境具有重要意义。

The washing law and dust effect of artificial rainfall on surface pollutants were studied.Through the establishment of scour model,the influencing factors for artificial rainfall on erosion surface contaminants were studied.The study calculates the scouring velocity of surface contaminants,collecting time and effective quantity of rainfall intensity,mean surface contaminants are attached,artificial rainfall depth and the surface concentration,scouring coefficient and other parameters.It results in the erosion of the surface contaminants by the artificial rainfall patterns.Combined with CA-FCM algorithm,the grid division of artificial rainfall operation area was carried out,and the dust removal effect was accurately evaluated by using F test rule.The experimental results show that artificial rainfall plays an important role in reducing the content of surface pollutants and protecting the ecological environment.