Dealing With Two Stresses: Impact of a Damaging Spring Frost Followed by a Summer Drought on Saplings of Four Temperate Tree Species DOI Open Access
Na Luo, Yann Vitasse, Arthur Geßler

et al.

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

ABSTRACT Global warming increases the likelihood that temperate tree species will face damaging late spring frost (LSF) and severe summer drought during same growing season. However, interactive effects of these two stresses are barely explored. We investigated physiological growth responses Acer campestre , Fagus sylvatica Quercus robur petraea saplings to artificially induced LSF drought, focusing on stomatal gas exchange, carbon partitioning, nonstructural carbohydrates (NSCs), phenology growth. depleted NSCs changed allocation patterns 1 month after event. Additionally, decreased diameter increment root A. F. in current year. Drought affected exchange all species, reduced biomass Q. exacerbated detrimental effect robur's NSCs. Our findings indicate prioritized canopy restoration immediately LSF, favored reserve replenishment before until end Furthermore, we highlight risk year could push beyond their limits emphasize importance studying multiple stressors' interactions better understand threshold profoundly alter forest ecosystems.

Language: Английский

Dealing With Two Stresses: Impact of a Damaging Spring Frost Followed by a Summer Drought on Saplings of Four Temperate Tree Species DOI Open Access
Na Luo, Yann Vitasse, Arthur Geßler

et al.

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

ABSTRACT Global warming increases the likelihood that temperate tree species will face damaging late spring frost (LSF) and severe summer drought during same growing season. However, interactive effects of these two stresses are barely explored. We investigated physiological growth responses Acer campestre , Fagus sylvatica Quercus robur petraea saplings to artificially induced LSF drought, focusing on stomatal gas exchange, carbon partitioning, nonstructural carbohydrates (NSCs), phenology growth. depleted NSCs changed allocation patterns 1 month after event. Additionally, decreased diameter increment root A. F. in current year. Drought affected exchange all species, reduced biomass Q. exacerbated detrimental effect robur's NSCs. Our findings indicate prioritized canopy restoration immediately LSF, favored reserve replenishment before until end Furthermore, we highlight risk year could push beyond their limits emphasize importance studying multiple stressors' interactions better understand threshold profoundly alter forest ecosystems.

Language: Английский

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