By monitoring and analyzing we consider that the higher bacteriological indexes of water quality of Hongyan river are original quality of coteau and woodland;

• 通过对红岩河水质监测和分析,认为:红岩河水质细菌学指标高是山区林地故有的特征,总磷、总氮、高锰酸盐指数和总硬度偏高与流域区地面丰富的有机质及水文地质条件有关;