Drought Tolerance in ​Trees: Growth and Physiology

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Ecophysiology and Biology".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 539

Special Issue Editors


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Guest Editor
College of Forestry, Shandong Agricultural University, Tai’an, China
Interests: forest ecology; plant functional traits; droughts; wood anatomy; non-structural carbohydrate
College of Forestry, Northwest A&F University, Yangling, China
Interests: forest ecology; tree ring ecology; restoration ecology; ecosystem service functions

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Guest Editor
College of Life Sciences, Shandong Normal University, Ji’nan, China
Interests: plant water physiology; plant functional traits; carbon allocation

Special Issue Information

Dear Colleagues,

The increasing frequency and intensity of drought events worldwide pose significant challenges to forest ecosystems, affecting tree growth, survival, and ecosystem functioning. As the backbone of many terrestrial ecosystems, trees play a critical role in maintaining biodiversity, carbon storage, and water cycles. Understanding the mechanisms that underpin tree responses to drought is, therefore, pivotal to predicting and mitigating the impacts of climate change on forests.

This Special Issue, "Drought Tolerance in ​Trees: Growth and Physiology", aims to bring together cutting-edge research and synthesis on how trees respond to drought at various scales, from molecular to ecosystem levels. By highlighting the latest advances in this field, we hope to foster interdisciplinary collaborations and inspire innovative strategies for forest management and conservation under changing environmental conditions.

The Special Issue welcomes contributions that explore the multifaceted responses of trees to drought. Key areas of focus include, but are not limited to, the following: studies on hydraulic architecture, stomatal regulation, osmotic adjustment, and carbon allocation in trees under drought stress; studies on how drought influences tree growth patterns, biomass distribution, and phenological adjustments; and studies on how tree responses to drought scale up to affect community structure, ecosystem function, and biogeochemical cycles.

We look forward to your contributions to this exciting collection.

Dr. Guangqi Zhang
Dr. Yang Cao
Dr. Peipei Jiang
Guest Editors

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Keywords

  • drought tolerance
  • drought resistance
  • tree physiology
  • tree growth
  • water stress
  • hydraulic efficiency
  • stomatal regulation
  • xylem cavitation
  • climate resilience
  • forest adaptation

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Published Papers (1 paper)

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Research

23 pages, 3984 KiB  
Article
Stem Heating Enhances Growth but Reduces Earlywood Lumen Size in Two Pine Species and a Ring-Porous Oak
by J. Julio Camarero, Filipe Campelo, Jesús Revilla de Lucas, Michele Colangelo and Álvaro Rubio-Cuadrado
Forests 2025, 16(7), 1080; https://doi.org/10.3390/f16071080 - 28 Jun 2025
Viewed by 259
Abstract
Climate models forecast warmer winter conditions, which could lead to an earlier spring xylem phenology in trees. Localized stem heat experiments mimic this situation and have shown that stem warming leads to an earlier cambial resumption in evergreen conifers. However, there are still [...] Read more.
Climate models forecast warmer winter conditions, which could lead to an earlier spring xylem phenology in trees. Localized stem heat experiments mimic this situation and have shown that stem warming leads to an earlier cambial resumption in evergreen conifers. However, there are still few comprehensive studies comparing the responses to stem heating in coexisting conifers and hardwoods, particularly in drought-prone regions where temperatures are rising. We addressed this issue by comparing the responses (xylem phenology, wood anatomy, growth, and sapwood concentrations of non-structural carbohydrates—NSCs) of two pines (the Eurosiberian Pinus sylvestris L., and the Mediterranean Pinus pinaster Ait.) and a ring-porous oak (Quercus pyrenaica Willd.) to stem heating. We used the Vaganov-Shashkin growth model (VS model) to simulate growth phenology considering several emission scenarios and warming rates. Stem heating in winter advanced cambial phenology in P. pinaster and Q. pyrenaica and enhanced radial growth of the three species 1–2 years after the treatment, but reduced the transversal lumen area of earlywood conduits. P. sylvestris showed a rapid and high growth enhancement, whereas the oak responded with a 1-year delay. Heated P. pinaster and Q. pyrenaica trees showed lower sapwood starch concentrations than non-heated trees. These results partially agree with projections of the VS model, which forecasts earlier growth onset, particularly in P. pinaster, as climate warms. Climate-growth correlations show that growth may be enhanced by warm conditions in late winter but also reduced if this is followed by dry-warm growing seasons. Therefore, forecasted advancements of xylem onset in spring in response to warmer winters may not necessarily translate into enhanced growth if warming reduces the hydraulic conductivity and growing seasons become drier. Full article
(This article belongs to the Special Issue Drought Tolerance in ​Trees: Growth and Physiology)
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