不同密度杉木林对林下植被和土壤微生物群落结构的影响

丁凯, 张毓婷, 张俊红, 柴雄, 周世水, 童再康

Effects of Chinese fir plantations with different densities on understory vegetation and soil microbial community structure

DING Kai, ZHANG Yu-Ting, ZHANG Jun-Hong, CHAI Xiong, ZHOU Shi-Shui, TONG Zai-Kang

表3 不同密度杉木人工林林下植被生物量(平均值±标准差)

Table 3 Understory vegetation biomass of Chinese fir plantations with different densities (mean ± SD)

类型 Type	优势植物种类 Dominate species	地上部分生物量 Aboveground biomass (t·hm^-2)		总计 Total (t·hm^-2)
类型 Type	优势植物种类 Dominate species	灌木层 Shrub layer	草本层 Herb layer	总计 Total (t·hm^-2)
KH	檵木 Loropetalum chinense	0.09 ± 0.15 ^b	0.01 ± 0.02 ^b	0.10 ± 0.17 ^b
KM	檵木、五节芒 L. chinense, Miscanthus floridulus	0.26 ± 0.02 ^b	0.15 ± 0.02 ^b	0.40 ± 0.07 ^b
KL	檵木、芒萁、狗脊、渐尖毛蕨 L. chinense, Dicranopteris pedata, Woodwardia japonica, Cyclosorus acuminatus	0.87 ± 0.15 ^a	1.23 ± 0.15 ^a	2.10 ± 0.57 ^a