南京林业大学学报（自然科学版）2025，Vol.49Issue(3)：163-171,9.DOI:10.12302/j.issn.1000-2006.202403012
原始阔叶红松林中不同生活型阔叶植物枝叶性状的变异及权衡
Variation and trade-offs of twig and leaf traits among different broadleaved life form plants in the primitive broadleaved-Korean pine forest
摘要
Abstract
[Objective]The trade-off between twig and leaf traits is crucial for understanding how plants allocate resources under various environmental stresses.This study focused on 12 dominant or common broadleaved plants in a natural broadleaved-Korean pine(Pinus koraiensis)forest.[Method]We used one-way ANOVA or non-parametric rank-sum tests to analyze trait differences among different life forms or species.Standardized major axis estimation(SMA)was employed to investigate correlations between twig and leaf traits.[Result]Broadleaved plants of different life forms exhibited similar trends in twig and leaf traits.Specifically,variation in twig cross-sectional area and volume-based leafing intensity were greater than 30％,twig mass variation exceeded 20％,while individual leaf mass,total leaf area,and individual leaf area variations were below 15％.Trees had significantly higher individual leaf area,total leaf area,and individual leaf mass compared to shrubs.There was a positive allometric relationship between twig cross-sectional area and individual leaf area in trees,while shrubs showed a positive isometric relationship.Both trees and shrubs exhibited positive isometric relationships between twig cross-sectional area and total leaf area,with only some species showing positive allometric relationships.Both tree and shrub species demonstrated negative allometric relationships between volume-based leafing intensity and individual leaf area or mass,with some tree species showing negative isometric relationships.[Conclusion]The results suggest that twig and leaf traits across different plant life forms generally follow allometric relationships.Allometric growth enhances plant survival strategies,and the trade-off model of twig and leaf traits is influenced by growth patterns.关键词
阔叶红松林/权衡关系/生活型/性状变异/出叶强度/功能性状Key words
broad leaved-Korean pine forest/trade-off relationship/life form/trait variation/volume-based leafing intensity/functional traits分类
农业科技引用本文复制引用
侯瑄珠,李楠..原始阔叶红松林中不同生活型阔叶植物枝叶性状的变异及权衡[J].南京林业大学学报（自然科学版）,2025,49(3):163-171,9.基金项目
中央高校基本科研业务费专项资金项目(2572014BA06). （2572014BA06）
