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2. 2014-2015年成熟群落凋落物去除和退化群落凋落物添加对土壤温度和土壤水分的影响(平均值±标准误差)。不同小写字母a、b、c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. 2. Effects of litter removal in the mature community and litter addition in the degraded community on soil temperature and soil moisture in 2014 and 2015 (mean ± SE). Different small letters a, b and c 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.
