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1 不同密度杉木林试验样地的基本概况(平均值±标准差)

Table 1 Basic information of the test plots of Chinese fir plantations with different densities (mean ± SD)

类型 Type 林分密度 Stand density (plant·hm-2) 平均胸径 Average DBH (cm) 平均树高 Average tree height (m) 郁闭度 Canopy density KH 1 783.33 ± 76.38 a 14.3 ± 2.55 b 12.8 ± 0.69 c 0.96 ± 0.02 a KM 1 616.67 ± 52.65 b 15.6 ± 1.40 b 14.4 ± 1.36 b 0.84 ± 0.02 b KL 1 436.25 ± 28.87 c 17.4 ± 0.95 a 16.3 ± 0.31 a 0.78 ± 0.01 c