Summer Phytoplankton Community Characteristics and Its Rela-tionship with Water Environmental Factors in Caohai Wetland,Guizhou Province
In order to understand the community structure of phytoplankton and its relationship with water environmental factors in Caohai wetland,Guizhou Province,a survey of phytoplankton was conducted in the summer of 2022.The results showed that there were 8 phyla,51 families and 104 genera of phytoplankton in Caohai wetland in summer of 2022,among which Chlorophyta was the most abundant,followed by Bacillario-phyta and Cyanophyta.The average abundance of phytoplankton was 18.82 ×106 cells·L-1,and there were significant differences among sampling sites.From the perspective of dominant genera and abundance of phy-toplankton,Cyanobacteria and Chlorophyta were overwhelmingly dominant.The results of Redundancy Anal-ysis(RDA)showed that the community structure of phytoplankton in Caohai wetland was mainly affected by Total Nitrogen(TN),NH4-N,NO3-N,Total Phosphorus(TP),Total Organic Carbon(TOC),and Total Suspended Solid(TSS).The results of phytoplankton diversity index and abundance evaluation showed that the Caohai wetland was in a eutrophic state in the summer of 2022,which was at a moderate pollution level,and the water body had the risk of Microcystis bloom.
万方数据
维普
