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5. 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在群落地上总生物量中所占比例的影响(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)。EDG, 极度退化草地; MDG, 中度退化草地; SDG, 重度退化草地。
Fig. 5. Proportion of aboveground biomass in the total biomass varied with nitrogen addition, plant functional groups (grass vs forb), and degradation level (mean ± SE). The different letters indicate the significant difference from the Duncan’s multiple (p < 0.05) range tests (one-way ANOVA). EDG, extremely degraded grassland; MDG, moderately degraded grassland; SDG, severely degraded grassland.
