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引用本文:易映彤,李慧,刘妍,范亚文.扎龙国家级自然保护区硅藻植物特征及其环境指示作用.湖泊科学,2015,27(6):1035-1041. DOI:10.18307/2015.0607
YI Yingtong,LI Hui,LIU Yan,FAN Yawen.Diatom composition and its application in water quality assessment in the Zhalong National Nature Reserve, China. J. Lake Sci.2015,27(6):1035-1041. DOI:10.18307/2015.0607
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扎龙国家级自然保护区硅藻植物特征及其环境指示作用
易映彤, 李慧, 刘妍, 范亚文
哈尔滨师范大学植物学省级重点实验室, 哈尔滨 150025
摘要:
2011年春、夏、秋季对扎龙国家级自然保护区内的硅藻群落结构进行研究.通过鉴定,共发现硅藻门植物112个分类单位,包括96种16变种,隶属于2纲6目9科32属.通过对硅藻植物的种类组成、聚类分析等方法,对扎龙国家级自然保护区内的硅藻植物分布情况进行初步研究,结果表明,扎龙国家级自然保护区内硅藻植物种类较为丰富,保护区内水体普遍为受轻污染或中度污染状态,个别水域存在富营养化情况,春、夏、秋季节中,秋季的富营养情况较为严重.结合水体的理化指标,通过对扎龙国家级自然保护区水体中硅藻的优势种、指示种的分析,发现该水域喜碱性、半咸水种类及中污带的种类较多,说明保护区水体受到轻微的污染,个别水域出现富营养状态.扎龙国家级自然保护区水体呈中-弱碱性、微盐,表明该区域受到了土地盐碱化的影响.
关键词:  扎龙国家级自然保护区  硅藻植物群落  聚类分析
DOI:10.18307/2015.0607
分类号:
基金项目:国家自然科学基金项目(31070183、31270250)、黑龙江省教育厅重点项目(12521z011)、黑龙江省高校科技创新团队研究计划和哈尔滨师范大学科技创新团队研究计划(KJTD-2011-2)联合资助.
Diatom composition and its application in water quality assessment in the Zhalong National Nature Reserve, China
YI Yingtong, LI Hui, LIU Yan, FAN Yawen
College of Life Science and Technology, Harbin Normal University, Harbin 150025, P.R.China
Abstract:
As the largest wetland nature reserve area for cranes and other large water birds in China, Zhalong National Nature Reserve plays an important role in maintaining regional ecological security. In 2011, composition structure of diatom communities were investigated during spring, summer and autumn. The biodiversity of diatom in this area are relatively high and totally 112 taxa(including 96 species, 16 varieties) were identified, belonging to 2 classes, 6 orders, 9 families and 32 genera. The diatom communities were analyzed by principal component analysis and cluster analysis was employed to analysis the relationship between diatom and environmental parameters. It showed that conductivity, total phosphorus and total nitrogen have great influence on the diatom distribution. Through the analysis, species preferring to alkaline and semi-alkaline habitat were identified, such as Navicula radiosa Kütz., Epithemia adnata, Fragilaria ulna var. acus(Kütz.) Lange-Bertalot. Due to the effect of land salinization, the water was affected by the alkaline and sort of salty weakly.Combined with the physical and chemical indicators of the water, we conclude that the water quality in Zhalong National Nature Reserve have been polluted slightly.
Key words:  Zhalong National Nature Reserve  diatom communities  cluster analysis
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