Impacts Of Global Change On Tree Physiology And... — No Login

Global change impacts tree physiology and forest ecosystems primarily by disrupting water and carbon cycles, leading to widespread physiological stress and altered growth patterns . While rising CO2cap C cap O sub 2

: Excessive water reduces soil oxygen, inhibiting root respiration and growth. Paradoxically, this can also reduce root hydraulic conductivity, leading to "shoot desiccation" even in waterlogged soils. 2. Shifts in Carbon Metabolism Impacts of Global Change on Tree Physiology and...

can initially act as a fertilizer, increasing photosynthesis and water-use efficiency (WUE), these benefits are often offset by extreme temperatures and drought, which can trigger "carbon starvation" and hydraulic failure. 1. Disruptions to Water Relations Global change impacts tree physiology and forest ecosystems

Extreme weather events significantly alter how trees manage water, often pushing them beyond their physiological limits. inhibiting root respiration and growth. Paradoxically