[an error occurred while processing this directive]
凋落物去除和添加处理对典型草原生态系统碳通量的影响
张素彦1,2,蒋红志2,王扬2,张艳杰1,鲁顺保1,2,*(),白永飞2
Effects of litter removal and addition on ecosystem carbon fluxes in a typical steppe
ZHANG Su-Yan1,2,JIANG Hong-Zhi2,WANG Yang2,ZHANG Yan-Jie1,LU Shun-Bao1,2,*(),BAI Yong-Fei2

图4. 两种群落凋落物去除和添加处理下生态系统总初级生产力(GEP)、生态系统呼吸(ER)和CO2净交换(NEE)的季节动态。不同小写字母a、b、c表示相同测定时间下不同处理间差异显著(p < 0.05)。ns表示处理之间差异不显著(p > 0.05)。 Control, 对照; -50%, 凋落物去除50%; -100%, 凋落物去除100%; +50%, 凋落物添加50%; +100%, 凋落物添加100%。

Fig. 4. Seasonal dynamics of net ecosystem CO2 exchange (NEE), ecosystem respiration (ER) and gross ecosystem productivity (GEP) under litter removal and addition treatments in the two communities. Different small letters a, b, and c indicate significant differences among treatments (p < 0.05). ns indicates no significant difference among treatments (p > 0.05). -50%, litter removal of 50%; -100%, litter removal of 100%; +50%, 50% litter addition; +100%, 100% litter addition.