Zooplankton Community Dynamics and Water Quality Assessment in Chaohu Shibalianwei Wetland
In order to understand the biodiversity and water quality in Chaohu Shibalianwei wetland after ecological restoration,samples of zooplankton in 11 sampling sites were investigated during the dry season and the wet season in Shibalianwei.Results indicated that during the dry season,82 species of zooplankton were detected,the average density was 6 769.17 ind./L,the average biomass was 1.28 mg/L.and the average Shannon-Wiener index,Margalef index,and Pielou index were 2.47,3.04,and 0.52,respectively.During the wet season,128 species of zooplankton were detected,the average density was 5 417.35 ind./L,the average biomass was 3.44 mg/L,and the average Shannon-Wiener index,Margalef index,and Pielou index were 2.55,4.20 and 0.72,respectively.The water quality of the restored wetland was greatly improved and identified as low pollution level.The wetland unit wetland can effectively improve zooplankton diversity and community stability,and has better effect on water purification in the wet season.In the dry season,zooplankton community structure was mainly affected by conductivity,water temperature and dissolved oxygen,while nutrient pollutants had a greater impact on community structure in the wet season.Finally,the results of redundancy analysis indicated that nitrogen was a key influence factor on zooplankton biomass,which should be focused on in the future.
Free water surface constructed wetlandZooplanktonEcological RestorationWater quality evaluation
NETL
NSTL
万方数据
