不同来源可溶性有机物对亚热带森林土壤CO2排放的影响

万菁娟, 郭剑芬, 纪淑蓉, 任卫岭, 司友涛, 杨玉盛

Effects of different sources of dissolved organic matter on soil CO2 emission in subtropical forests

WAN Jing-Juan,GUO Jian-Fen,JI Shu-Rong,REN Wei-Ling,SI You-Tao,YANG Yu-Sheng

表1 试验地表层土壤(0-10 cm)性质(平均值±标准误差)

Table 1 Surface soil (0-10 cm ) properties of the study sites (mean ± SE)

试验地 Study site 有机碳 Organic carbon (g·kg-1) 全氮 Total N (g·kg-1) C:N 可溶性有机碳 Dissolved organic carbon (mg·kg-1) 可溶性有机氮 Dissolved organic nitrogen (mg·kg-1) 微生物生物量碳 Microbial biomass carbon (mg·kg-1) 杉木人工林 Cunninghamia lanceolata plantation 17.55 ± 1.70 1.31 ± 0.133 13.37 ± 0.55 73.27 ± 8.15 8.79 ± 0.79 423.52 ± 5.93