季风边缘区湖泊表层沉积物粒度组分分布特征与影响因素

郭晓阳, 王维, 王国良, 刘立娜, 马玉贞, 何江

Within-lake distributions of grain-size components and environmental implications based on the survey of lake surface sediment of Chinese monsoon marginal area

Xiaoyang GUO, Wei WANG, Guoliang WANG, Lina LIU, Yuzhen MA, Jiang HE

表4 湖泊表层沉积物粒度组分百分比与环境因子的冗余分析（RDA）结果

Tab.4 Redundancy analysis (RDA) results for percentage of grain-size components of lake sediments and environmental factors

轴（Axes） 1 2 3 4 总方差 特征值(Eigenvalues) 0.071 0.020 0.003 0.001 1.000 物种-环境相关性 (Species-environment correlations) 0.454 0.201 0.178 0.102 物种累积百分比变化率(Cumulative percentage variance of species data) 7.1 9.1 9.4 9.5 物种-环境相关性累积百分比变化率(Cumulative percentage variance of species-environment relation) 75.1 96.2 99.3 100.0 特征值总和(Sum of all eigenvalues) 1.000 典型特征值总和(Sum of all canonical eigenvalues) 0.095