大伙房水库的浮游植物分布情况调查研究

he distribution of phytoplankton in Dahuofang Reservoir was investigated and studied in this study. Based on the composition of the algae from the reservoir and the the frequency of occurrence and the number of pollution indicator algae, we can preliminary judgment that the water quality of this reservoir could be eutrophication type. The algal cell density of this reservoir ranges 5.4×106 Ind/L from 10.95×106 Ind/L, suggesting that the water quality of this reservoir could be eutrophication type. The Shannon-Weaver diversity index of each sample point were calculated based on the the results of algae cell counting. The results indicating that part of the sampling points are belonging to light pollution. The Margalef diversity index was 0.69, which is smaller than that in literature, suggesting that contamination was occurred in this reservoir. Based on the results of biological indicator and biological diversity index, Dahuofang Reservoir are belonging to light pollution water.