植物生物量分配的调节机制——C-N平衡模型

生物量分配调整是植物适应资源变化的一个重要方式,关于生物量分配调整机制的理论主要包括激素调节假说、糖调节假说、源汇假说和C-N平衡假说。其中,由于C-N平衡假说抓住了C、N两个决定生物量分配的关键因子,因而得到了许多研究者的支持。该文从C-N平衡假说的模型、发展以及局限等方面做了综述。

The Adjustment of Plant Biomass Allocation--C-N Balance Model

The adjustment of biomass allocation is one of the way plant adapts to resource variation. Four main theo?ries on the drive of biomass allocation have been proposed:hormonal regulation hypothesis,sugar regulation hypothe?sis,source-sink hypothesis and C-N balance theory. C-N balance theory is widely supported because it is based on C,N substrate,which are two factor decide the biomass allocation of the plant. In this paper,the C-N balance model, its development and limit was discussed.