Effects of AM fungi and phosphorus heterogeneity on root foraging and competition between native and invasive plants

Root foraging associated with arbuscular mycorrhizal fungi (AMF) play an important role in nutrient uptake. While distribution of nutrients can influence the role of AMF, but the interactive effects of nutrient heterogeneity and AMF on root foraging and plant competition are still unclear. Two invasive and two native species of Asteraceae family were selected. We conducted a common garden experiment of three factors (heterogeneity, AMF and competition).

与丛枝菌根真菌（arbuscular mycorrhizal fungi, AMF）相关的根系觅食过程，在植物养分吸收环节发挥着关键作用。尽管养分分布格局可影响AMF的生态功能，但养分异质性与AMF对根系觅食及植物竞争的交互效应目前仍不明确。本研究选取菊科（Asteraceae）的2种入侵植物与2种本土植物，开展了包含养分异质性、AMF及竞争三个因子的同质园实验。