安吉小鲵栖息地浮游植物群落结构特征及水生态评价  

Phytoplankton Community Structure and Water Ecological Assessment in the Habitat of Hynobius amjiensis

作　　者：毛张琦 洪澜 汪贤挺 郎泽东 徐俊锋[3] 姜丹[1,4] MAO zhang-qi;HONG Lan;WANG Xian-ting;LANG Ze-dong;XU Jun-feng;JIANG Dan(School of Public Health Hangzhou Normal University,Hangzhou 310000,Zhejiang,China;Administration Center of Hynobius amjiensis National Nature Reserve,Huzhou 313301,Zhejiang,China;Institute of Remote Sensing and Earth Sciences,Hangzhou Normal University,Hangzhou 311121,Zhejiang,China;Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration,Hangzhou Normal University,Hangzhou 310036,Zhejiang,China)

机构地区：[1]杭州师范大学公共卫生学院,浙江杭州311121 [2]安吉小鲵国家级自然保护区管理中心,浙江湖州313300 [3]杭州师范大学遥感与地球科学研究院,浙江杭州311121 [4]杭州师范大学生态系统保护与恢复杭州市重点实验室,浙江杭州311121

出　　处：《湿地科学与管理》2024年第2期39-44,共6页Wetland Science & Management

基　　金：安吉小鲵栖息地生态系统监测研究政府采购项目(ZJMY(采)2021-082)。

摘　　要：为研究安吉小鲵栖息地水体浮游植物群落结构和时空变化特征,2022年3—12月对浙江龙王山安吉小鲵栖息地水环境进行采样,测定浮游植物种类数及数量,并对水体理化性质进行分析。结果表明:安吉小鲵栖息地共鉴定出浮游植物8门72属116种,年平均密度为2.62×10^(6)cells/L,年平均生物量为4.25mg/L,年平均叶绿素a浓度为21.72μg/L。Shannon-weiner和Pielou多样性指数分别为0.09~3.63和0.02~0.93。综合3个水体评价指标,安吉小鲵栖息地水体处于中营养状态,其中两个繁殖坑S4和S8向轻度富营养化转变。水体营养状况具有一定的季节特征,夏季营养水平显著高于其他季节。本研究首次报道了安吉小鲵栖息地浮游植物群落结构及其变化,建议今后密切监测栖息地水生生态变化,必要时开展安吉小鲵栖息地生态保护措施。To study the composition of phytoplankton community in the habitat of Hynobius amjiensis,water samples were collected and analyzed from March to December 2022.Multiple assessment methods such as density,biomass,diversity index,chla and comprehensive trophic status index were used to evaluate the water ecological health of the habitat of H.amjiensis.The results showed that a total of 116 species of phytoplankton belonging to 72 genera in 8 phyla were identified.The average annual density was 2.62×106 cells/L,and the average annual biomass was 4.25 mg/L.The diversity indices of Shannon-weiner and Pielou were 0.09~3.63 and 0.02~0.93,respectively.The study revealed the characteristics of seasonal variation of phytoplankton diversity,dominant species,community structure and nutrient status.The water ecological environment of the habitat was generally good,however,the significant increase of the density and biomass in sites of S4 and S8 tended to become eutrophication.The nutrient status in summer was much higher than the other seasons.Therefore,more attention should be paid to the early warning of algal bloom as well as the full use of monitoring methods,to ensure the water ecological environment health of the habitat of H.amjiensis.

关 键 词：浮游植物 群落结构 水生态评价 安吉小鲵栖息地 

分 类 号：Q948.8[生物学—植物学]