Daqing Reservoir,is one of important drinking water Source in Daqing,Heilongjiang Province.To explore the structure char-acteristics of aquatic community and assessment the aquatic ecological health status,plankton and macrobenthos sample surveys were conduc-ted in Daqing Reservoir,in July 2022,June 2023 and September 2023.The maininfluencing factors were analyzed by RDA analysis and Pear-son correlation analysis.The results showed that 55～66 species of phytoplankton,36～57 species of zooplankton and 7～13 species of macro-benthos were identified.RDA analysis showed that total nitrogen(TN),total phosphorus(TP),Permanganate index,Chemical oxygen de-mand(COD)and Ammonia nitrogen(NH3-N)were the major environmental factors affecting the plankton community.COD,Five-day bio-chemical oxygen demand(BOD5)and Permanganate index were the major environmental factors affecting the macrobenthos community.Based on the diversity indices,the results showed that the water quality ofDaqing Reservoir was at medium pollution level.
关键词
大庆水库/水生生物/群落结构/环境因素/生态健康评价
Key words
Daqing reservoir/aquatic/community structure/environmental factors/ecological health assessment
维普
万方数据