北京西卓家营湿地沉水植物群落组成与水环境因子的关系

摘要

分析北京西卓家营湿地12个水环境因子(含盐量、溶解氧浓度、pH值、浊度、总氮浓度、总磷浓度、化学需氧量、Cl-浓度、SO42-浓度、氧化还原电位、水深和水温)与沉水植物群落组的关系.运用双向分类矩阵,将13种沉水植物分为8个类群.通过对环境因子和沉水植物群落样方进行DCCA排序,得出第1排序轴主要反映Cl-浓度,而第2排序轴反映溶解氧浓度和水深.%Relationships between submerged plants community and 12 hydro-environmental indicators such as salinity, dissolved oxygen concentration, pH value, turbidity, total nitrogen concentration, total phosphorus concentration, chemical oxygen demand, Cl concentration, SO42- concentration, redox potential, water depth and water temperature in Xizhuojiaying wetland were analyzed. The 13 species of submerged plants were classified into 8 groups by using two way indicator species analysis ( TWINSPAN). According to the comprehensive analysis on environmental factors and DCCA ranking axis, the first ordination axis mainly reflected Cl concentration, while the second ordination axis reflected the dissolved oxygen concentration and water depth.