华北地区落叶松林的分布、群落结构和物种多样性

方文静,蔡琼,朱江玲,吉成均,岳明,郭卫华,张峰,高贤明,唐志尧,方精云

Distribution, community structures and species diversity of larch forests in North China

FANG Wen-Jing,CAI Qiong,ZHU Jiang-Ling,JI Cheng-Jun,YUE Ming,GUO Wei-Hua,ZHANG Feng,GAO Xian-Ming,TANG Zhi-Yao,FANG Jing-Yun

表4 华北地区落叶松林的物种丰富度

Table 4 Species richness of larch forests in North China

落叶松林类型 Forest type	乔木层 Tree layer	灌木层 Shrub layer	草本层 Herb layer	总体 Total
华北落叶松(人工林) LPF (PF)	2.5 ± 2.1^b (1-9)	4.7 ± 4.1^c (0-18)	20.4 ± 15.8^b (0-55)	27.2 ± 17.7^b (0-63)
华北落叶松(天然林) LPF (NF)	3.1 ± 2.1^b (1-11)	5.8 ± 5.0^bc (0-29)	11.4 ± 19.1^b (0-50)	27.5 ± 13.8^b (1-65)
日本落叶松林(人工林) LKF (PF)	5.1 ± 2.9^a (1-11)	13.8 ± 9.1^a (4-38)	20.4 ± 15.1^b (4-56)	37.4 ± 22.4^ab (14-81)
太白红杉林(天然林) LCF (NF)	2.2 ± 1.5^b (1-6)	7.7 ± 3.6^ab (0-22)	29.6 ± 15.8^a (12-73)	39.3 ± 17.9^a (17-98)
所有天然林 All natural forest	2.9 ± 2.0^a (1-11)	6.2 ± 4.7^a (0-29)	21.8 ± 13.4^a (0-73)	30.5 ± 15.8^a (1-98)
所有人工林 All planted forest	3.5 ± 2.7^a (1-11)	7.9 ± 7.6^a (0-38)	20.4 ± 15.5^a (0-56)	30.8 ± 20^a (1-81)