Spruce suffers most from drought at low elevations in the Carpathians, though shows high resilience

Forest Ecology and Management, Год журнала: 2024, Номер 571, С. 122201 - 122201

Опубликована: Авг. 27, 2024

More frequent and severe droughts have affected forest ecosystems throughout Europe in recent decades. In Central Europe, large-scale dieback of Norway spruce has, for example, been observed, whereas decline was so far less widespread Eastern Europe. To assess the potential future impacts drought on southeastern part its natural distribution, studies resilience are urgently needed. Here, we use a tree-ring network consisting more than 3000 trees from 158 managed stands different ages distributed along elevational gradients Carpathians to growth responses drought. Specifically, analyzed differences components (e.g., resistance, recovery, resilience, recovery period) with elevation tree age, used 'line full resilience' concept comprehensively resilience. Our results show that at low elevations (<800 m) is characterized by lowest resistance drought, though has high while (>1400 m), higher associated recovery. general, older were found need time recover. Resilience decreases water deficit, suggesting risk ongoing climate change, urging adaptative management. • Spruce assessed using Carpathians. suffers most elevations, it recovers quickly. Older risk.

Язык: Английский

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Tree Crown Damage and Physiological Responses Under Extreme Heatwave in Heterogeneous Urban Habitat of Central China

Climate, Год журнала: 2025, Номер 13(2), С. 26 - 26

Опубликована: Янв. 28, 2025

(1) Background: Global warming has intensified dry heatwaves, threatening urban tree health and ecosystem services. Crown damage in trees is a key indicator of heat stress, linked to physiological changes habitat characteristics, but the specific mechanisms remain be explored. (2) Methods: This study investigated heatwave-induced crown Wuhan’s species, focusing on influence responses habitats. was visually scored, were measured via stomatal conductance (Gs) transpiration rate (Tr). (3) Results: Significant interspecific differences identified, with Prunus × yedoensis showing highest degree damage, while Pittosporum tobira displayed lowest. A strong correlation observed between Gs Tr, albeit species-specific variations. The Degree Building Enclosure (DegBE) emerged as most prominent factor, mitigating effect followed by Percentage Canopy Coverage (PerCC), contrast Impermeable Surface (PerIS) that showed significant positive correlation. (4) Conclusions: above findings suggest species traits configurations interact complex ways shape resilience under heatwave informing strategies for vegetation protection against stress Central Chinese cities.

Язык: Английский

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Effect of various lengths of cold stratification period on the germination of wild service tree (Sorbus torminalis) seed samples harvested in the Czech Republic

Journal of Forest Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Язык: Английский

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A Standardized Framework to Estimate Drought-Induced Vulnerability and Its Temporal Variation in Woody Plants Based on Growth

Forests, Год журнала: 2025, Номер 16(5), С. 760 - 760

Опубликована: Апрель 29, 2025

Forests and scrubland comprise a large proportion of terrestrial ecosystems and, due to the long lifespan trees shrubs, their capacity grow store carbon as lasting woody tissues is particularly sensitive warming-enhanced drought occurrence. Climate change may trigger transition from forests in many drylands during coming decades higher resilience shrubs. However, we lack standardized frameworks compare response plants. We present framework develop an index estimate drought-induced vulnerability (DrVi) shrubs based on radial growth trajectory variability index. used tree-ring width series three tree (Pinus halepensis Mill., Juniperus thurifera L., Acer monspessulanum L.) shrub (Juniperus oxycedrus Pistacia lentiscus Ephedra nebrodensis Tineo ex Guss.) species semi-arid areas test this framework. compared DrVi values between populations explored temporal changes. Across species, strongest were found declining P. stands J. same site, while lowest A. monspessulanum, lentiscus, E. nebrodensis. populations, presented one dry sites. The stand showed steady increase value after 1980s climate shifted toward warmer drier conditions. conclude that allows comparing using general

Язык: Английский

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Crown structure, growth, and drought tolerance of true service tree (Sorbus domestica L.) in forests and urban environments

Urban forestry & urban greening, Год журнала: 2023, Номер 91, С. 128161 - 128161

Опубликована: Дек. 1, 2023

True service tree (Sorbus domestica L.) is a rare native species of Central Europe. It grows well in dry and warm environments may consequently be adapted to the expected future climate further north. considered potentially suitable for change adaptation forests urban environments. In this study, we used total height, stem diameter, crown dimensions from true trees Germany, southern Scandinavia, northern Italy, Slovakia determine specie's allometric relationships space requirements. Additionally, cores Germany disks Copenhagen study growth patterns drought stress response. Throughout, compared oak (Quercus robur L. Quercus petraea (Matt.) Liebl.), as common well-studied species. Our results indicated that two have similar both had fast their youth, followed by gradual reduction at later stages. The projection area was similarly influenced competitors oak, indicating sensitivity towards competition. Likewise, identified similarities response and, hence, tolerance. Due comparable pattern tolerance, hypothesise many regards, can model management tree.

Язык: Английский

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Long-Term Impacts of Intensive Thinning on Forest Transpiration Dynamics in a Japanese Cypress Plantation

Опубликована: Янв. 1, 2024

Язык: Английский

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Dry-Heat Tolerance of Common Tree Species in a Central Chinese City: Responses to Heterogeneous Habitat Characteristics

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Июль 22, 2024

Global warming has intensified the occurrence of dry heatwaves, and heterogeneous urban habitats can influence trees' tolerance to dry-heat conditions, however specific mechanisms remain unclear. This research investigated nine common trees in Wuhan, a central Chinese city facing persistent heatwave threats, explored multifactorial habitat variations on trees’ tolerance. Diverse sites with sample plots various spatial scales were established for each tree species. Dry-heat was evaluated through visual assessment, measuring degree leaf damage during historic event. A significant interspecific difference observed tolerance, Pittosporum tobira exhibiting highest while Prunus × yedoensis displayed lowest, relevance life forms provenances And species varied across habitats, influenced by surrounding building enclosure land cover composition. The Degree Building Enclosure most prominent factor, followed Percentage Canopy Coverage Grove Area, all which positively affected contrast Impermeable Surface showing negative effect. In addition, scale effect evident, that 50m 100m range identified as effective campus affecting especially weaker findings support selection optimization artificial enhance resilience vegetation cities.

Язык: Английский

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Drought resilience of three coniferous species from Belgian arboreta highlights them as promising alternatives for future forests in Western Europe

Dendrochronologia, Год журнала: 2024, Номер unknown, С. 126282 - 126282

Опубликована: Дек. 1, 2024

Язык: Английский

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