氮添加对内蒙古退化草地植物群落多样性和生物量的影响
杨倩1,2,王娓2*(
),曾辉1,2*()
),曾辉1,2*()
Effects of nitrogen addition on the plant diversity and biomass of degraded grasslands of Nei Mongol, China
Qian YANG1,2,Wei WANG2*(),Hui ZENG1,2*()
),Hui ZENG1,2*()
图4. 氮添加对不同程度退化草地恢复进程中功能群地上生物量的影响(平均值±标准误差)。单因素方差分析、Duncan’s多重比较进行处理间差异分析, 不同字母表示差异显著(p < 0.05), NS表示差异不显著。EDG, 极度退化草地; MDG, 中度退化草地; SDG, 重度退化草地。
Fig. 4. Change in aboveground biomass (mean ± SE) with nitrogen addition on aboveground biomass by plant function groups under three levels of degraded grassland. The different letters indicate significant differences in Duncan’s multiple (p < 0.05) range tests from one-way ANOVA, NS indicates non-significant (p > 0.05). EDG, extremely degraded grassland; MDG, moderately degraded grassland; SDG; severely degraded grassland.
