黔中喀斯特木本植物功能性状变异及其适应策略

钟巧连,刘立斌,许鑫,杨勇,郭银明,许海洋,蔡先立,倪健

Variations of plant functional traits and adaptive strategy of woody species in a karst forest of central Guizhou Province, southwestern China

ZHONG Qiao-Lian,LIU Li-Bin,XU Xin,YANG Yong,GUO Yin-Ming,XU Hai-Yang,CAI Xian-Li,NI Jian

表2 喀斯特森林优势木本植物的功能性状特征

Table 2 Characteristics of dominant woody plant functional traits in the karst forest

性状 Trait 平均值±标准偏差 Mean ± SD 最小值 Minimum 最大值 Maximum 变异系数 Coefficient of variation (%) 叶片厚度 Leaf thickness (mm) 0.17 ± 0.07 0.03 0.33 39.41 叶面积 Leaf area (cm2) 17.74 ± 10.44 2.15 69.28 58.85 比叶面积 Specific leaf area (cm2?g-1) 134.44 ± 45.80 55.35 281.34 34.07 叶干物质含量 Leaf dry-matter content (g?g-1) 0.40 ± 0.06 0.28 0.69 14.79 叶组织密度 Leaf tissue density (g?cm-3) 0.54 ± 0.13 0.27 1.07 24.07 小枝干物质含量 Twig dry-matter content of branchlets (g?g-1) 0.48 ± 0.06 0.37 0.64 11.67 小枝组织密度 Twig tissue density (g?cm-3) 0.69 ± 0.19 0.28 2.50 27.53 比根长 Specific root length (cm?g-1) 251.91 ± 128.79 54.56 987.41 51.12 细根组织密度 Fine root tissue density (g?cm-3) 0.85 ± 0.82 0.12 7.33 96.47