The research materials reviewed in this paper shows that PFG concept groups plant species into distinct clusters according to similarities in their functions and responses to environmental conditions.

• 这些研究资料表明，植物功能群整合了功能及对环境响应相似的一类植物，但植物功能特征不是绝对的、单一的，所以对植物功能群就会有不同的理解，会有不同的定义及划分方法。