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首页> 外文会议>International Conference on Structures and Building Materials >Canonical Correspondence Analysis on Phytoplankton Community and Its Environmental Factors in Poyang Lake
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Canonical Correspondence Analysis on Phytoplankton Community and Its Environmental Factors in Poyang Lake

机译：浮游植物群落的规范对应分析及其在鄱阳湖环境因素

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摘要

Aimed at identifying the key influencing environmental factors of phytoplankton community, we investigated phytoplankton in June 2010 and February 2011 in Poyang Lake. Species from 58 genuses, 32 families and 7 phyla had been found in the investigations, and the major phyla were Chlorophyta, Bacillariophyta and Cyanophyta. The average abundance of phytoplankton in summer and winter were 35.92×10~5 cell/L and 26.63×10~5 cell/L, respectively. Even though the unique hydrodynamic conditions of such a water passing lake (during flood seasons Poyang Lake forming a vast lake, but in dry seasons, lake recedes into a channel) make the water environment unstably, Chlorophyta are able to adapt to the conditions and grow well, therefore, the lake was dominated by Chlorophyta, especially Chlorella and Cosmarium, respectively accounting for 56.38% and 52.10% of the total abundance in summer and winter. CCA ordination on 12 sampling sites, 58 genuses of phytoplankton and 10 environmental factors demonstrated that there were great geographic differences of water environmental physicochemical conditions in winter, while in summer, it's not significant, besides, DO, water temperature and nutrients (nitrogen and phosphate) were the most important environmental factors that regulated the distribution of phytoplankton community.
机译：旨在确定影响浮游植物群落的关键影响环境因素，我们于2010年6月调查了Phytoplankton，2011年2月在鄱阳湖。在调查中发现了来自58种Genuses，32个家族和7个植物的物种，并且主要的Phyla是叶绿素，杆菌病和睾.夏季和冬季浮游植物的平均丰度分别为35.92×10〜5个细胞/ L和26.63×10〜5个细胞/ L.即使路过湖泊等水独特的水动力条件（在汛期鄱阳湖形成一个巨大的湖泊，但在干燥的季节，湖退入通道）使水环境不稳定，绿藻是能够适应的条件和成长好了，因此，湖水是由绿藻占主导地位，尤其是绿藻和Cosmarium，分别占56.38％和总丰度在夏季和冬季的52.10％。 CCA排序在12个抽样网站上，58个浮游植物和10个环境因素的群体表明，冬季水环境物理化学病症的地理差异很大，而在夏季，除了，除了，水温和营养素（氮气和磷酸盐）并不重要）是监管浮游植物群落分布的最重要的环境因素。

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