三环泡湿地保护区浮游植物功能群季节演替及影响因子

为了研究寒区湿地保护区浮游植物功能群的季节变化以及影响因子,于2014年春季(5月份)、夏季(7月份)和秋季(9月份)对三环泡湿地保护区15个采样点进行了调查分析。结果表明:三环泡湿地保护区共划分为20个功能群,其中重要功能群为X2、W1、MP、H1、Y和C,呈现X2+W1→X2+MP→Y+X2+C季节变化特征。通过RDA多元统计分析表明,水温、总氮质量浓度、透明度、浊度、总无机碳质量浓度是影响寒区浮游植物功能群的主要环境因子。

Seasonal Dynamics Characteristics and Physical Factors of Phytoplankton Functional Groups in Sanhuanpao Wet-land Reserve

We studied the relationship between the phytoplankton functional groups and associated environmental factors in cold region of China .We investigated the spatial and temporal distribution characteristics of phytoplankton functional groups in Sanhuanpao Wetland Reserve from May to September 2014.There were 20 functional groups in Sanhuanpao Wetland Re-serve during the study periods and the dominant groups included functional groups H 1, MP, C, Y, X2 and W1.Group W1 and X2 were predominant in the spring associated with high water temperature ( WT) and nutrients availability .Group X2, MP and H1 were associated with high WT , nutrients availability in summer .Group Y, X2 and C were associated with low WT and nutrients the most important factors , WT was negatively related with groups Y and C , and positively related availa-bility in the autumn.The redundancy analysis (RDA) showed that WT, TN, SD, and IC were with other groups.