西南喀斯特石漠化环境适生植物构树细根、根际土壤化学计量特征

胡琪娟, 盛茂银, 殷婕, 白义鑫

Stoichiometric characteristics of fine roots and rhizosphere soil of Broussonetia papyrifera adapted to the karst rocky desertification environment in southwest China

HU Qi-Juan, SHENG Mao-Yin, YIN Jie, BAI Yi-Xin

表1 西南喀斯特石漠化环境构树样地设置及样地基本信息

Table 1 Descriptions of the sampling sites and the quadrat setting of Broussonetia papyrifera in karst rocky desertification environment of Southwest China

石漠化等级 Degree of rocky desertification 样地号 Plot number 样本数 Sample size 林龄 Stand age (a) 平均胸径 Mean diameter at breast height (cm) 郁闭度 Canopy density 无 Nil I-1-I-2 18 5 13.75 ± 0.18 0.43 ± 0.02 潜在 Potential II-1-II-2 18 5 13.42 ± 0.20 0.51 ± 0.04 轻度 Slight III-1-III-4 36 6 14.15 ± 0.15 0.41 ± 0.01 中度 Moderate IV-1-IV-5 45 6 14.09 ± 0.28 0.35 ± 0.01 强度 Severe V-1-V-4 36 5 14.36 ± 0.11 0.32 ± 0.01