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小叶锦鸡儿灌丛化对典型草原群落结构与生态系统功能的影响
丁威1,王玉冰2,3,向官海2,3,迟永刚4,鲁顺保1,*(),郑淑霞2,*()
Effects of Caragana microphylla encroachment on community structure and ecosystem function of a typical steppe
DING Wei1,WANG Yu-Bing2,3,XIANG Guan-Hai2,3,CHI Yong-Gang4,LU Shun-Bao1,*(),ZHENG Shu-Xia2,*()

图4. 内蒙古典型草原不同程度灌丛化草地地上净初级生产力(ANPP)和功能群生物量(RAB)的变化(平均值+标准误差)。AB, 一/二年生草本; PF, 多年生杂类草; PG, 多年生禾草。不同小写字母表示各样地间差异显著(p < 0.05)。

Fig. 4. Aboveground net primary productivity (ANPP) and relative biomass (RAB) of different functional groups at light, moderate and heavy encroachment sites in Nei Mongol typical steppe (mean + SE). AB, annuals and biennials; PF, perennial forbs; PG, perennial graminoids. Different lowercase letters indicate significant differences among sites (p < 0.05).