Phytoplankton Community Investigation and Water Quality Assessment of M River in winter in Shijiazhuang City

An investigation of phytoplankton community and water quality for M River was conducted in December 2019.The results showed that 38 species belonging to 6 phyla 26 genera were collected. Among them, Bacillariophyta is the richest species, which accounted 34.21%, followed by Cyanophyta with 26.32% Chlorophyta 28.95%. The density 63.0*106 inds/L indicated as eutrophic body. highest Bacillariophyta, accounting 51.03%. Shannon-Wiener diversity index (H’) varied from 1.34 2.24, Margalef Species (d) 2.71 3.85, Pielou evenness (J) 0.38 0.67. According integrative analysis H’, d J, belongs oligo-polluted, but individual sites belong meso-polluted.