农业环境科学学报2016，Vol.35Issue(3)：540-547,8.DOI:10.11654/jaes.2016.03.018
锌和铁对浅水湖泊中浮游植物复苏影响研究--以玄武湖为例
Impact of zinc and iron on phytoplankton community structure during recruitment:A case study in Lake Xu-anwu, Nanjing
摘要
Abstract
Many studies have focused on the effects of temperature, light and dissolved oxygen on the growth of phytoplankton. However, the understanding of metal effects on phytoplankton during recruitment remains unclear. In the present study, water samples taken from Xuanwu Lake in December have been used to clarify the relationship between metal concentration and community structure change during phyto-plankton recovery process. The initial zinc(0, 3.25í10-4, 3.25í10-3, 3.25í10-2 mg·L-1)and iron concentrations(0, 2.80í10-4, 2.80í10-3, 2.80í10-2 mg·L-1)were employed in cultivation experiment. Results showed that when zinc concentration was higher than 3.25í10-3 mg·L-1, the recruitment of blue algae was obviously inhibited and the growth of green algae and diatoms was reduced. The Fv/Fm values of these three algae were 0.4, 0.3 and 0,respectively. Similar results were also observed when iron concentration was over 2.80í10-4 mg·L-1. The re-cruitment of blue algae was inhibited. Fv/Fm values of blue algae, green algae and diatoms were reduced to 0.45, 0.33 and 0.07, respective-ly. It can be concluded that recruited phytoplankton was dominated by Microcystis of Cyanophyta, followed by Scenedesmus under high iron concentrations, while its dominant species was Scenedesmus, followed by Chlorella and Microcystis under zinc stresses.关键词
浮游植物/复苏/金属离子/群落结构/光合作用活性Key words
phytoplankton/recruitment/metal/community structure/Fv/Fm分类
资源环境引用本文复制引用
滕益莉,王沛芳,任凌霄,王超,钱进,刘佳佳..锌和铁对浅水湖泊中浮游植物复苏影响研究--以玄武湖为例[J].农业环境科学学报,2016,35(3):540-547,8.基金项目
国家自然科学基金面上项目（51479065）；江苏省优势学科建设项目 （）
