Fig. 5

CCA analysis of cyanobacterial community and water quality indexes in Dianshan Lake a. Δ B1 ∼ B13 represent the shared bands of May, Jul, Oct, and Dec in DGGE profiles, and the numbers represent the different dominant bands in DGGE profiles. b.○ 5.1 ∼ 12.11 represent the water samples collected in May during spring, in July during summer, in October during autumn, and in December during winter, respectively. The number after the decimal point represents the sampling site. Sites 1, 2, and 4 represent the east area of the lake; 5, 7, and 8 represent the north area of the lake; 9 represents the west area of the lake; 10 represents the middle area of the lake; and 11 represents the south area of the lake