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浮游植物蓄水准备期有43种,数量为7.53×104个/L;蓄水期有40种,数量为1.35×105个/L;运行期有36种,数量为1.59×105个/L。优势种均为硅藻。蓄水过程中藻类数量呈大幅上升趋势,种类组成以硅藻为主,但蓝藻种类增加而硅藻和甲藻种类减少是最显著的特征。浮游动物蓄水准备期有27种,数量为705.1个/L;蓄水期有33种,数量为2 125.5个/L;运行期有37种,数量为845.4个/L。总体上看,蓄水期浮游动物数量最高;在种类组成上,大型浮游动物种类增加较显著。结合蓄水过程水文、水体理化指标及水动力条件的变动特点,阐述了浮游生物群落结构对相关环境因子变化的响应机制,并对其发展趋势进行了预测。
There were 43 species of phytoplankton reservoirs in preparation period, the number of which was 7.53 × 104 / L; there were 40 species in the storage period, the number of which was 1.35 × 105 / L; and 36 species were in operation, the number of which was 1.59 × 105 / L. The dominant species are diatoms. The number of algae in the water storage process showed a sharp upward trend, with diatoms dominated in species composition. However, the increase of cyanobacteria species and the decrease of diatom and dinoflagellate species were the most prominent features. There were 27 species of zooplankton reservoirs during the preparation period, with a quantity of 705.1 plants / L. There were 33 species in the water-holding period with an amount of 2 125.5 plants / L. There were 37 species in operation, with a total number of 845.4 plants / L. In general, the number of zooplankton during the storage period was the highest; in terms of species composition, the species of large zooplankton increased more significantly. Combined with the characteristics of hydrology, physical and chemical indexes of water body and the dynamic characteristics of hydrodynamics, the response mechanism of plankton community structure to the change of relevant environmental factors was expounded, and its development trend was predicted.