Water Environmental Quality Evaluation based on Visualize Classification for Jian-gang Reservoir of South-North Water Transfer Project

According to the water quality monitoring data for Bashang section of Jian-gang reservoir conveying water for South-North Water Transfer Project from 2006 to 2009, individual evaluation, overall merit and evaluations of flood season and non-flood season were employed for water environmental quality evaluation with visualize classification on the ground of water quality standard classification, the results indicated that the evaluation indexes of flood season were higher than that of non-flood season and overall merit were with class I, thus overall water quality was good enough for satisfying water quality requirements for supplying of South-North Water Transfer Project, the water quality of non-flood season was better than the flood season.