Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China.
Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China.
Sci Rep. 2021 Jul 8;11(1):14127. doi: 10.1038/s41598-021-93722-7.
Ecological strategy spectrum is the relative proportion of species in different categories of ecological strategies in a biotic community. Here, we explored ecological strategy spectra in typical forest vegetation types across four climatic zones in China. We classified ecological strategy categories by using the "StrateFy" ordination method based on three leaf functional traits. Results showed that the predominant ecological strategies of species in the tropical rainforest were CS-selected, and the predominant categories in the evergreen-deciduous broadleaved mixed forest and warm-temperate coniferous-broadleaved mixed forest were CSR and S/CSR categories respectively, whereas those in the cold-temperate coniferous forest were the S-selected ones. Ecological strategy richness of forest vegetation decreased significantly with the increase of latitude. The categories of ecological strategies with more component S increased while those with more component C decreased with the change of typical forest vegetation types from tropical rainforest through evergreen-deciduous broadleaved mixed forest and warm-temperate coniferous-broadleaved mixed forest to cool-temperate coniferous forest. Our findings highlight the usefulness of Grime's C-S-R scheme for predicting the responses of vegetation to environmental changes, and the results are helpful in further elucidating species coexistence and community assembly in varied climatic and geographic settings.
生态策略谱是生物群落中不同生态策略物种的相对比例。本研究采用基于三种叶片功能性状的“StrateFy”排序方法对中国四个气候带的典型森林植被类型的生态策略谱进行了探讨。结果表明，热带雨林中物种的主要生态策略为 CS 选择，常绿落叶阔叶混交林和暖温带针阔混交林的主要类别分别为 CSR 和 S/CSR 类别，而寒温带针叶林中的物种主要为 S 选择。森林植被的生态策略丰富度随纬度的增加而显著降低。随着典型森林植被类型从热带雨林经常绿落叶阔叶混交林和暖温带针阔混交林向寒温带针叶林的变化，具有更多 S 成分的生态策略类别增加，而具有更多 C 成分的生态策略类别减少。本研究结果突出了 Grime 的 C-S-R 方案在预测植被对环境变化的响应方面的有效性，并且有助于进一步阐明不同气候和地理条件下物种共存和群落组装的机制。
