“…Whether the artificial plant community constructed by the selforganization principle of plant communities can be self-renewed in the process of vegetation succession is directly related to whether there is a dynamic and balanced relationship between revegetation and local environmental conditions (Lenton et al, 2003;Das et al, 2008;Lin et al, 2012;Long et al, 2014). During vegetation restoration, the transition from seedlings to saplings is the bottleneck stage of tree planting and revegetation construction, which is considered as the most vulnerable stage for individual growth and the most sensitive stage to environmental changes (Martens et al, 2004;Queenborough et al, 2007;Svenning et al, 2008;Madejon et al, 2009;Mao et al, 2017;Shao et al, 2017). Therefore, exploring the ecological characteristics and impacting factors such as light factor for regenerated seedlings and saplings at different stages of artificially restored plant communities facilitates the understanding for the new approaches of species synchronization in the process of vegetation restoration to reveal the root cause affecting the dynamics of artificial re-vegetation communities, which is of great significance for the reasonable evaluation of the adaptability of artificial re-vegetation (Volkov et al, 2005;Lin et al, 2012;Xu et al, 2014).…”