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
),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
),BAI Yong-Fei2
图3. 成熟群落凋落物去除和退化群落凋落物添加对地上生物量的影响(平均值±标准误差)。不同小写字母a、b表示同一群落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. 3. Effects of litter removal in the mature community and litter addition in the degraded community on aboveground biomass (mean ± SE). Different small letters a and b indicate significant differences among treatments in the same community (p < 0.05). ns indicates no significant differences among treatments (p > 0.05). -50%, litter removal of 50%; -100%, litter removal of 100%; +50%, 50% litter addition; +100%, 100% litter addition.
