模拟根系分泌物C:N化学计量特征对川西亚高山森林土壤碳动态和微生物群落结构的影响

梁儒彪, 梁进, 乔明锋, 徐振锋, 刘庆, 尹华军

Effects of simulated exudate C:N stoichiometry on dynamics of carbon and microbial community composition in a subalpine coniferous forest of western Sichuan, China

LIANG Ru-Biao,LIANG Jin,QIAO Ming-Feng,XU Zhen-Feng,LIU Qing,YIN Hua-Jun

表1 天然林和人工林土壤理化性质(平均值±标准偏差)

Table 1 Soil physical and chemical properties in both natural forest and plantation (mean ± SD)

理化性质 Physical-chemical properties 天然林 Natural forest 人工林 Plantation pH值 pH value 6.97 ± 0.02 6.73 ± 0.03 含水量 Water content (%) 52.52 ± 1.76 37.70 ± 2.46 总碳 Total C (mg·g-1) 114.87 ± 1.10 49.22 ± 1.18 总氮 Total N (mg·g-1) 8.46 ± 0.31 3.20 ± 0.12 碳氮比 C:N 13.59 ± 0.51 15.41 ± 0.55