WEI Yi
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaLIU Hui
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaHE Pengcheng
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaLIU Xiaorong
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaYE Qing
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaIn order to reveal the leaf energy investment strategy of subtropical forest trees at different successional stages and the correlations between leaf construction cost and mechanical resistance, the suits of leaf traits, including force to tear (Ft), force to punch (Fp), leaf mass per area (LMA), leaf lifespan (LLS), leaf construction cost per area (CCarea), leaf cuticle thickness (Tc), and leaf maximum photosynthesis per area (Aarea), for 14 dominant woody species from subtropical forests at different successional stages were measured, and the correlations between leaf construction cost and mechanical resistance were analyzed. The results showed that the dominant species from late successional forest had higher CCarea, Ft and Fp, but lower Aarea than those in early successional forest. In addition, CCarea was positively correlated with both Ft and Fp. Moreover, the structural traits, such as Tc and LMA, were positively correlated with CCarea and mechanical resistance. Therefore, it was illustrated the coordination between CCarea and mechanical resistance, along with the changes in structural traits might be responsible (at least partially) for this shift of leaf energy investment strategy for trees occurred at different successional subtropical forests.
韦伊,刘慧,贺鹏程,刘小容,叶清.南亚热带不同演替阶段森林优势树种叶片构建成本与机械抗性的协同关系[J].热带亚热带植物学报,2022,30(4):483~491
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