Leaf functional characteristics and leaf economic spectrum of 10 major garden trees in Xiamen

doi:10.14088/j.cnki.issn0439-8114.2025.03.015

Abstract

Abstract: To explore the leaf functional traits and environmental adaptability of garden greening trees in Xiamen City, 10 kinds of garden trees were selected for study, and their leaf functional traits, ecological stoichiometric characteristics and physiological indicators were determined respectively. The results showed that there were significant differences in leaf shape index (LI), specific leaf area (SLA), leaf dry matter content (LDMC) and leaf water content (LWC), malondialdehyde (MDA) content, free proline (Pro) content, catalase (CAT) activity, leaf carbon content per unit mass(LCC), leaf nitrogen content per unit mass(LNC), carbon to nitrogen ratio (C∶N) among 10 species of garden trees. Correlation analysis showed that LI was extremely significantly positively correlated with LWC, extremely significantly negatively correlated with LDMC, and negatively significantly correlated with LNC; SLA was extremely significantly positively correlated with LWC, LNC and C∶N; MDA was extremely significantly negatively correlated with LWC and C∶N; LCC was extremely significantly positively correlated with C∶N and extremely significantly negatively correlated with LNC; CAT was negatively significantly correlated with Pro. Principal component analysis and membership function analysis showed that Delonix regia, Alstonia scholaris and Ficus microcarpa among 10 common garden trees showed better adaptability to Xiamen City under the same environment. Leaf strategy analysis showed that Delonix regia, Alstonia scholaris and Ficus microcarpa belonged to the “slow investment-return” growth strategy (i.e. higher SLA and LDMC and lower LNC), which were more suitable for using as the main tree species in urban landscape planning of Xiamen City.

Key words: garden trees, leaf economic spectrum, functional traits, ecological stoichiometry, correlation analysis, Xiamen City

CLC Number:

S687

LIANG Wan-feng, YANG Zhuo-sheng, WANG Zhou-fan, LIU Hui-xiang, ZHENG Qing-hua, YOU Yong-bin, WANG Heng-ming, CHEN Ying. Leaf functional characteristics and leaf economic spectrum of 10 major garden trees in Xiamen[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(3): 92-99.

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