Based on water quality long term localization monitoring data (DO, IMn, TN, NH3 N, and TP) of Hung tse Lake from 2001 to 2011, matter element analysis was used to optimize the layout of water quality monitoring points in the Lake. The result indicated that the matter element analysis optimized the original 21 monitoring points to 15 points, and there was no significant effect on the monitoring results after monitoring points optimization. |