广东省韶关市3座大中型饮用水水库浮游植物功能类群特征

Characteristics of phytoplankton functional groups in main reservoirs for large and medium sized drinking water supply in Shaoguan, China.

于2011年1—12月调查分析了韶关市南水水库、瀑布水库和花山水库3座大中型饮用水库的富营养化状况、浮游植物功能类群和优势功能类群的演替特点。结果表明:南水水库为贫营养型水库,全年以适应低营养盐环境的Lo和A等功能类群占优势,枯丰两期浮游植物功能类群变化不明显,全年低浓度的氮、磷营养盐是水库浮游植物功能类群的重要影响因子;瀑布水库和花山水库为中营养型水库,虽然枯、丰两期Lo和A等功能类群占优势,但在丰水期,适应富营养环境的X1、MP和J等功能类群也占优势,浮游植物功能类群动态变化相对明显,枯、丰两期氮磷营养盐浓度差异、水体稳定性和透明度变化是其动态变化的重要影响因子。

In order to understand eutrophication, phytoplankton functional groups and succession characteristics, Nanshui reservoir, Pubu reservoir and Huashan reservoir were investigated from January to December in 2011. The results showed that Nanshui reservoir was Oligotrophic reservoirs; Lo and A were dominant functional groups which adapted to low nutrient Functional groups did not change significantly in dry and wet seasons; the low concentrations of nitrogen and phosphorus were important factors. Pubu reservoir and Huashan reservoir were mesotrophic reservoirs; Lo and A were dominant functional groups in dry and wet seasons, while X1, MP and J were also dominant functional groups in wet season. Phytoplankton functional groups changed little in dry and wet seasons in these two reservoirs, and the nitrogen nutrient, phosphorus nutrient, water stability and transparency were important factors.