非度量多维标度在亲水河浮游植物群落分析中的应用

发布时间：2018-05-02 05:29

本文选题：浮游植物 + 群落结构　；参考：《生态与农村环境学报》2016年01期

【摘要】：为拦截地表径流及各类污染物质进入太湖水域,2014年6月在亲水河流域部分河段布设了生物绳,于2014年6—12月进行了同步监测,选取实际监测数据讨论了非度量多维标度(non-metric multidimensional scaling,NMDS)在浮游植物群落结构分析中的运用。分析结果显示,在生物绳运行前期,总氮和总磷浓度下降明显(P0.01),但后期生物绳处理对营养盐的削减并不显著(P0.05)。经过生物绳处理后,浮游植物群落结构只在6月和10月与前置库有差别,其他月份差异均不显著,但不同月份间浮游植物群落组成差异显著,说明不同季节的温度变化是引起亲水河调查期间浮游植物群落演替的关键因素。
[Abstract]:In order to intercept the entry of surface runoff and various pollutants into the waters of Taihu Lake, biological ropes were placed in some reaches of the hydrophilic river basin in June 2014, and synchronized monitoring was carried out in June and December 2014. The application of non-metric multidimensional scaling (NMDS) in phytoplankton community structure analysis was discussed. The results showed that the concentration of total nitrogen and total phosphorus decreased significantly in the early stage of biological rope operation, but the nutrient reduction was not significant in the later stage of biological rope treatment. After the biological rope treatment, the phytoplankton community structure was only different from that in the front bank in June and October, but not in other months, but the composition of phytoplankton community was significantly different in different months. The results show that the temperature variation in different seasons is the key factor for phytoplankton community succession during hydrophilic river investigation.
【作者单位】：中国科学院南京地理与湖泊研究所/湖泊与环境国家重点实验室;安徽师范大学环境科学与工程学院;江苏江达生态科技公司;南京南瑞集团公司;
【基金】：太湖水污染治理专项资金(第七期)技术示范类科研课题(TH2013205) 国家自然科学基金(41501215)
【分类号】：X173;X524

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