abstract
alga
aquatic
area
biology
blue
bluegreen
china
closeup
color
covering
cyanobacteria
environment
floating
flora
forest
grass
green
growth
jiangsu
lake
landscape
leaf
life
natural
nature
nobody
organic
outdoors
park
pollution
slimy
stagnant
summer
sunlight
surface
taihu lake
texture
water
wet
wuxi