JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (1): 131-139.doi: 10.12302/j.issn.1000-2006.202205036

Previous Articles     Next Articles

Variation and correlation analysis of leaf traits of three Acer species in different growth periods in the Xiaoxing’an Mountains of northeast China

PENG Zhongtao1(), GUO Jiaxing1, WANG Yixuan2, WANG Lei2, JIN Guangze1, LIU Zhili1,*()   

  1. 1. Center for Ecological Research,Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education,Northeast Asia Biodiversity Research Center,Northeast Forestry University,Harbin 150040,China
    2. School of Forestry,Northeast Forestry University,Harbin 150040,China
  • Received:2022-05-23 Revised:2023-05-13 Online:2024-01-30 Published:2024-01-24
  • Contact: LIU Zhili E-mail:1426002467@qq.com;liuzl2093@126.com

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.

Key words: Acer species, specific leaf area, leaf dry matter content, chlorophyll, leaf thickness, survival strategy, Xiaoxing’an Mountains

CLC Number: