The change pattern of CSR ecological strategy of trees and seedlings during different succession stages in tropical lowland rainforests

生态演替 雨林 生态学 热带雨林 生物 野生种 特质 植物群落 比叶面积 竞赛(生物学) 植物 栖息地 光合作用 计算机科学 程序设计语言
作者
Yabo Wen,Chen Chen,Tianxu Sun,Y.B. Yang,Xiao Han,Baohui He,Xinghui Lu
出处
期刊:Frontiers in forests and global change [Frontiers Media]
卷期号:6
标识
DOI:10.3389/ffgc.2023.1236933
摘要

Monitoring changes to growth-survival strategies is beneficial during plant growth and development to understand the dynamics of community succession. We measured key leaf traits and calculated competition, stress-tolerance, and ruderals ecological strategy scores for trees and seedlings in different successional stages in tropical lowland rain forests. We analyzed functional trait patterns and CSR strategies with plant growth and development through the different succession stages. We found that trees used strategies that were shifted from S/CS and CS strategies to CS/CSR strategies along the succession. However, seedlings maintained the use of the S/CSR strategy. Seedlings showed lower leaf dry matter content, higher specific leaf area, and their leaf area was relatively conservative. We also observed that the functional traits of seedlings and large trees showed basically consistent changes through each succession stage. Using the standard deviation of C-, S-, and R-scores, we found that the ecological strategy width of trees is smaller, while seedlings have a wider range of ecological strategies. Together, this information can be used to define plant succession changes with functional plant trait changes using different CSR ecological strategies in tropical rainforests that are a threated due to human activities. The research results provide scientific basis for understanding the strategic change of plant growth and predicting the direction of forest function succession, and also provide theoretical support for the management of tropical lowland rainforest in China.
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