水资源保护2017，Vol.33Issue(2)：88-94,7.DOI:10.3880/j.issn.1004-6933.2017.02.016
浮游植物对摇蚊幼虫扰动的响应研究
Research on effect of chironomid larvae bioturbation on phytoplankton
摘要
Abstract
In order to examine the effect of bioturbation of benthic animals on phytoplankton, a laboratory incubation experiment with a sediment-water interface system was carried out.The widely distributed Propsilocerus akamusi and phytoplankton were used in this experiment.The microelectrode system and other techniques were used to monitor the physicochemical indicators of the sediment-water interface system.The results show that the chironomid larvae bioturbation reduced the flux of soluble reactive phosphorus (SRP) released from pore water to the overlying water and decreased the concentration of dissolved oxygen (DO) in the overlying water, leading to a decrease in the biomass and a change of the community structure of the overlying phytoplankton.The amount of DO infiltration in the sediment was significantly correlated with the change of the flux of SRP released from pore water to the overlying water, as was the relationship between the biomass of the phytoplankton and the flux of SRP examined the previous time.All these results indicate that chironomid larvae bioturbation can cause an inhibition of the phytoplankton growth by changing the sediment structure and physicochemical properties, which contribute to the control of alga blooms.关键词
浮游植物/生物扰动/生物量/群落结构/微电极Key words
phytoplankton/bioturbation/biomass/community structure/microelectrode分类
资源环境引用本文复制引用
王昊天,刘凌,陈宁,邢西刚,杨艳青,刘唱..浮游植物对摇蚊幼虫扰动的响应研究[J].水资源保护,2017,33(2):88-94,7.基金项目
国家自然科学基金(51279060) （51279060）
中央高校基本科研业务费专项(2015B32014) （2015B32014）
