Impacts Of Global Change On Tree Physiology And... May 2026

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

: During severe drought, excessive water tension in the xylem can cause "cavitation" (air bubbles), blocking water transport from roots to leaves and leading to tree death. Impacts of Global Change on Tree Physiology and...

Climate change creates a complex "tug-of-war" in tree carbon balances, affecting their role as global carbon sinks. 5 Ways Climate Change Impacts Forests can initially act as a fertilizer, increasing photosynthesis