Comparative Analysis of Drought-Driven Water-Use Strategies in Mangroves and Forests

Forests, Journal Year: 2025, Volume and Issue: 16(3), P. 396 - 396

Published: Feb. 23, 2025

Mangroves grow in high-salinity environments with low soil water potential (Ψs), where high light intensity and strong winds increase the vapor pressure deficit (VPD), causing physiological drought transpiration demand (Δw), which limits carbon dioxide (carbon gain) for photosynthesis. This study explored how mangroves optimize their carbon-gain-to-water-loss ratio (water-use strategies) to maximize gain during both dry rainy seasons. We also calculated relative costs of key leaf traits compared them those terrestrial forests under optimization model. The results revealed that (1) increasing Δw, primarily adjusted hydraulic conductance (Kleaf), while altered difference (ΔΨ); (2) as Ψs decreased, πtlp increased; (3) developed a more balanced distribution trait between osmotic (46.7 ± 0.2%) stomata (43.3 1.2%), whereas had highest cost (49.04 0.03%) lowest (11.08 3.00%) season; (4) although showed differences values seasons, responses stress remained consistent. These findings provided new theoretical insights into maintain water-use efficiency extreme environmental conditions, is important improve mangrove conservation efforts contribute climate mitigation policies.

Language: Английский

Advancing nature-based solutions toward sustainability

Environmental Research Letters, Journal Year: 2025, Volume and Issue: 20(6), P. 060201 - 060201

Published: May 13, 2025

Language: Английский