南京林业大学学报（自然科学版）2024，Vol.48Issue(1)：131-139,9.DOI:10.12302/j.issn.1000-2006.202205036
小兴安岭3种槭树不同生长期叶性状变异及相关性分析
Variation and correlation analysis of leaf traits of three Acer species in different growth periods in the Xiaoxing'an Mountains of northeast China
摘要
Abstract
[Objective]Leaf traits play important roles in plant resource acquisition and photosynthetic capacity.Therefore,plants can adapt to different leaf-growth periods by adjusting their leaf traits.[Method]Acer ukurunduense,A.tegmentosum and A.pictum subsp.mono,three typical Acer species in the Xiaoxing'an Mountains of northeast China were selected as the objects of the study.During the three growth periods of leaf expansion(early June),leaf stabilization(mid-July),and leaf senescence(early September),the specific leaf area,leaf dry matter content,chlorophyll,and leaf thickness were measured.Additionally,the growth dynamics of the leaf traits and the correlations between traits were analyzed.[Result]Significant differences existed in leaf traits among different Acer species in different growth periods,and the leaf thickness in the leaf expansion period and leaf dry matter content in the leaf stabilization period were significantly higher than the other two periods.The correlation between leaf traits varied significantly with different growth periods.Three Acer species exhibited the"quick investment-return"strategy in the leaf expansion period and the"slow investment-return"strategy in the leaf stabilization and leaf senescence periods.Leaf traits and their correlations were significantly different at the species level.[Conclusion]Plants adapt to different growth periods through leaf trait variations and different combinations of leaf traits,and finally form various survival strategies.关键词
槭树/比叶面积/叶干物质含量/叶绿素/叶厚/生存策略/小兴安岭Key words
Acer species/specific leaf area/leaf dry matter content/chlorophyll/leaf thickness/survival strategy/Xiaoxing'an Mountains分类
农业科技引用本文复制引用
彭仲韬,郭嘉兴,王艺璇,王磊,金光泽,刘志理..小兴安岭3种槭树不同生长期叶性状变异及相关性分析[J].南京林业大学学报（自然科学版）,2024,48(1):131-139,9.基金项目
国家自然科学基金项目(31971636) （31971636）
中央高校基本科研业务费专项资金项目(2572022DS11) （2572022DS11）
国家级大学生创新训练项目(202010225014). （202010225014）
