College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
School of Biological and Environmental Sciences, Wenzhou University, Wenzhou, 325027, China.
Environ Sci Pollut Res Int. 2020 Dec;27(34):42324-42334. doi: 10.1007/s11356-020-10387-x. Epub 2020 Aug 15.
To explore the seasonal succession and drivers of phytoplankton communities in Guanzhong, Shaanxi Province, China, the water quality and phytoplankton communities in two typical waterbodies (Juehe Wetland Park in Xian and Xiaoxihu Lake in Xianyang) were monitored from 31 August 2017 to 31 July 2018. We identified 43 genera of phytoplankton from 7 phyla in Juehe Wetland Park and 45 genera of phytoplankton from 7 phyla in Xiaoxihu Lake. Phytoplankton communities in the two waterbodies showed significant patterns of seasonal succession. Cyanophyta (Microcystis spp.) dominated in August-September 2017 in Juehe Wetland Park, and Bacillariophyta (Navicula spp.) dominated in October 2017-July 2018. Cyanophyta (Microcystis spp.) dominated in Xiaoxihu Lake in August-November 2017, and Bacillariophyta (Synedra spp.) dominated in December 2017-July 2018. Redundancy analysis (RDA) showed that the temperature and total phosphorus were closely related to the seasonal succession of Cyanophyta and Bacillariophyta. In addition, the temperature, dissolved total phosphorus, and total phosphorus were closely related to the seasonal succession of Microcystis spp., Navicula spp., and Synedra spp.
为了探究中国陕西省关中地区浮游植物群落的季节性演替及其驱动因素，我们于 2017 年 8 月 31 日至 2018 年 7 月 31 日对两个典型水体（西安潏河湿地公园和咸阳小西湖）的水质和浮游植物群落进行了监测。我们在潏河湿地公园中鉴定出了 7 门 43 属浮游植物，在小西湖中鉴定出了 7 门 45 属浮游植物。两个水体的浮游植物群落均表现出显著的季节性演替模式。2017 年 8 月至 9 月，蓝藻（微囊藻属）在潏河湿地公园中占优势，2017 年 10 月至 2018 年 7 月，硅藻（舟形藻属）占优势。2017 年 8 月至 11 月，蓝藻（微囊藻属）在小西湖中占优势，2017 年 12 月至 2018 年 7 月，硅藻（脆杆藻属）占优势。冗余分析（RDA）表明，温度和总磷与蓝藻和硅藻的季节性演替密切相关。此外，温度、溶解总磷和总磷与微囊藻属、舟形藻属和脆杆藻属的季节性演替密切相关。
