【摘要】 本文将降雨-径流-污染物输出视为一个系统,研究了山区地表径流污染物流失规律.在实现小区污染物输出模型化和定量化的基础上,外推建立了涪陵地区五种污染物的各次降雨冲刷预测方程.定量计算结果表明:涪陵地区年污染物流失模数为:BOD,1666kg/km~2;SS 188810kg/km~2;COD 3216kg/km~2;总氮1145kg/km~2;总磷117kg/km~2.更多还原

【Abstract】 By taking rainfall-runoff-pollutants as a system, the overall situation of pollutant loss of surface runoff In the Fuling mountainous area has been studied. Based on modelling and quantifying pollutants run off in the sub-areas, the predictive equations of five pollutants washed away in Puling area are established by extrapolation. The results of quantitative calculation show th.at the moduli of annual pollutant loss in the area are as follows. BOD5 1666kg/km2,SS 188810 kg/km% COD 3216kg/ km2, total nitrogen 1145kg/km2 and total phosphorus 117kg/km3.更多还原