重庆地区几种常见单叶与复叶树种叶内生物量分配及异速生长分析

以6种复叶和7种单叶树种为材料,对叶内光合结构和支撑结构的生物量分配及异速生长关系在单叶和复叶树种中的变化规律进行研究.结果显示:单叶树种支撑结构的生物量投资比例显著大于复叶.单叶树种的支撑结构质量比与叶大小(叶面积和总叶干重)无明显的相关性,其光合结构与支撑结构呈等速生长关系;复叶树种的支撑结构质量比随叶大小的增加而...

Analysis of leaf biomass allocation and allometric growth of several common single-leaf and compound-leaf tree species in the Chongqing area

In this study, six compound-leaf and seven single-leaf tree species were used as research materials. We explored the variations in biomass investment ratios between the photosynthetic and support structures in the leaves as well as the allometric growth relationship between the single-leaf and compound-leaf tree species. Results showed that the biomass investment ratio of the support structure of the single-leaf tree species was significantly greater than that of the compound-leaf tree species. No significant correlation was found between the support structure mass ratio of single-leaf tree species and leaf size (represented by leaf area and total leaf dry weight), and their photosynthetic and support structures showed an isometric growth relationship. However, the support structure mass ratio of the compound-leaf tree species increased with the increase in leaf size, and their photosynthetic and support structures showed a significant allometric growth relationship. Furthermore, the growth rate of the support structure was greater than that of the photosynthetic structure. In addition, at the species level, the relationship between the mass ratio of the support structure and leaf size in different species of the same leaf type showed different variation trends.