密度、物种比例对盐沼植物种子萌发阶段种内、种间相互作用的影响
史欢欢, 雪穷, 于振林, 汪承焕*(
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Effects of density and species proportion on intraspecific and interspecific interactions between salt marsh plants during seed germination
SHI Huan-Huan, XUE Qiong, YU Zhen-Lin, WANG Cheng-Huan*()
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图3. 不同物种组合下互花米草、海三棱藨草、芦苇种内及种间相互作用强度(用相对邻株效应(RNE)表示) (平均值±标准误, n = 4)。A, 互花米草+海三棱藨草。B, 互花米草+芦苇。C, 海三棱藨草+芦苇。*, RNE与零有显著差异(p < 0.05); 不同小写字母表示同一物种的种内相互作用强度与种间相互作用强度间存在显著差异(p < 0.05)。
Fig. 3. Intraspecific and interspecific competition intensity of Spartina alterniflora (Sa), Phragmites australis (Pa) and Scirpus × mariqueter (Sm) in different species combination indicated by the relative neighbor effect (RNE) index (mean ± SE, n = 4). A, Sa + Sm. B, Sa + Pa. C, Sm + Pa. *, significant difference against zero (p < 0.05); different lowercase letters denote significant difference between intraspecific interaction intensity and interspecific interaction intensity of the same species (p < 0.05).
