树木细根生物量和形态特征对环境适应研究综述

Adaptation of fine root biomass and traits of tree species to environment

根系生态过程是森林生态系统能量流动和物质循环的关键环节。细根具有可塑性,是根系对外界环境因子变化最敏感的部分。在外界环境因子的作用下,细根生物量、功能属性以及形态特征会发生变化。细根的形态、结构方面的性状特征决定了植物对资源的吸收和利用能力。论述了树木细根生物量、形态特征及其对环境的适应特征,并对今后根系生态学的研究提出建议。

Fine roots play important roles in the energy flow and material circulation of forest ecosystems. Fine roots constitute the most dynamic portion of tree root systems and absorb water and nutrients from the soil. Fine roots are flexible. The biomass,functional traits and morphological characteristics of fine roots vary with different environmental factors. The morphological and structural traits of fine roots can determine the absorptive ability of plants. This paper reviewed the adaptation of fine root biomass and fine root traits to environment and proposed future research directions of root ecology.