Xylem adjustment and growth response of early- and late-successional tree species to rapid warming

• DOI: 10.1007/s10342-023-01655-9
• Publication Date: 2024-02-01T18:02:12Z
• Authors: Zihao Hu; Liangjun Zhu; Shuguang Liu; Pifeng Lei; Rong Zhang; Paolo Cherubini
• Keywords: Tree (set theory); Plant Physiology; Ecophysiology

Abstract Climate changes have dramatically affected forest succession. However, how trees at different successional stages respond to climate warming is unclear in the subtropics. Here, we compared radial growth (RW) and xylem features of early-successional stage Castanea mollissima late-successional Quercus fabri subtropical forests assessed their response changes. All parameters, including RW, number vessels (VN), vessel density (VD), mean (MVA) total (TVA) area, percentage conductive area within (RCTA), theoretical (Kh) xylem-specific (Ks) hydraulic conductivity, except for MVA C. were significantly higher than those Q. . During drought period, a notable adverse correlation between two cluster parameters , associated with safety efficiency, suggested pronounced trade-off under conditions. was more sensitive prone failure Temperatures moisture conditions positively negatively efficiency-related Moisture previous summer winter related both species. The impact generalized not evident due variations strategies species characteristics, trade-offs non-growing growing season climates, specific competition. If continues, will probably decline increasing risk failure. Warming may accelerate replacement succession study by changing lifespans competitive relationships.