What happens after drought ends: synthesizing terms and definitions

New Phytologist, Год журнала: 2022, Номер 235(2), С. 420 - 431

Опубликована: Апрель 4, 2022

Drought is intensifying globally with climate change, creating an urgency to understand ecosystem response drought both during and after these events end limit loss of functioning. The literature replete studies how ecosystems respond drought, yet there are far fewer focused on dynamics ends. Furthermore, while the terms used describe can be variable inconsistent, so those that responses following drought. With this review, we sought evaluate create clear definitions ecologists use post-drought responses. We found legacy effects, resilience recovery were most commonly respect responses, but variable. Based our review literature, propose a framework for generalizing ends, which refer as 'the period'. suggest future papers need clearly characteristics imposed encourage authors term period general encompasses ends other more specific descriptors period.

Язык: Английский

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More than a canopy cover metric: Influence of canopy quality, water-use strategies and site climate on urban forest cooling potential

Landscape and Urban Planning, Год журнала: 2024, Номер 248, С. 105089 - 105089

Опубликована: Апрель 17, 2024

• Urban tree canopy cover is a promising solution for mitigating heat island. Data-driven guidance on selection and planting locations still limited. Four research priorities are proposed, requiring collaborative effort. Cross-climate morphological physiological characteristics desired. Integration with atmospheric boundary layer models suggested.

Язык: Английский

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Forest growth resistance and resilience to the 2018–2020 drought depend on tree diversity and mycorrhizal type

Journal of Ecology, Год журнала: 2024, Номер 112(8), С. 1787 - 1803

Опубликована: Июль 12, 2024

Abstract The frequency of consecutive drought years is predicted to increase due climate change. These droughts have strong negative impacts on forest ecosystems. Mixing tree species proposed the resistance and resilience communities. However, this promising diversity effect has not yet been investigated under extreme conditions in context complementary mycorrhizal associations their potential role improving water uptake. Here, we investigate whether promotes growth responses are modulated by associations. We used inventory data (2015–2021) from a young experiment Germany, manipulating richness (1, 2 4 species) type (communities containing arbuscular [AM] or ectomycorrhizal [EM] species, both). For all communities, calculated basal area increment periods before, during after concepts quantify drought. found declines 2018–2020 for most Contrary our hypothesis, did find that per se can buffer growth. while EM decreased with richness, they increased AM communities comprising both types. highlight among various mixtures only those mixed types outperformed respective monocultures Furthermore, drought, community tends segregate into ‘winner’ ‘loser’ terms diversity, indicating possible intensification competition. While cannot disentangle underlying mechanisms clarify mycorrhiza findings suggest within could help safeguard forests against increasing frequency. Synthesis . Drought depend association diverse holds promise restoration face

Язык: Английский

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Mitigating drought stress in European beech and pedunculate oak: The role of competition reduction

Forest Ecosystems, Год журнала: 2025, Номер unknown, С. 100303 - 100303

Опубликована: Фев. 1, 2025

Язык: Английский

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Timing and duration of drought modulate tree growth response in pure and mixed stands of Scots pine and Norway spruce

Journal of Ecology, Год журнала: 2022, Номер 110(11), С. 2673 - 2683

Опубликована: Авг. 8, 2022

Abstract Climate change is increasing the severity and frequency of droughts around globe, leading to tree mortality that reduces production provision other ecosystem services. Recent studies show growth mixed stands may be more resilient drought than pure stands. The two most economically important widely distributed species in Europe are Norway spruce ( Picea abies (L.) Karst) Scots pine Pinus sylvestris L.), but little known about their susceptibility when coexist. This paper analyses resilience (resistance, recovery rate time) at individual‐tree level using a network tree‐ring collections from 22 sites along climatic gradient central Scandinavia. We aimed identify differences following between stands, how environmental variables (climate, topography site location) characteristics influence them. found both timing duration drive different responses compositions. showed higher vulnerability summer drought, with lower resistance longer time pine. Mixtures provided for compared benefit decreases drought. Especially climate sensitive old trees climatically marginal were affected by stress. Synthesis . Promoting forests promising strategy adapting European change. However, if future become longer, advantage could disappear which would especially negative spruce.

Язык: Английский

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Tree characteristics and drought severity modulate the growth resilience of natural Mongolian pine to extreme drought episodes

The Science of The Total Environment, Год журнала: 2022, Номер 830, С. 154742 - 154742

Опубликована: Март 24, 2022

Язык: Английский

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Declining tree growth resilience mediates subsequent forest mortality in theUSMountain West

Global Change Biology, Год журнала: 2023, Номер 29(17), С. 4826 - 4841

Опубликована: Июнь 21, 2023

Abstract Climate change‐triggered forest die‐off is an increasing threat to global forests and carbon sequestration but remains extremely challenging predict. Tree growth resilience metrics have been proposed as measurable proxies of tree susceptibility mortality. However, it unclear whether can improve predictions stand‐level Here, we use extensive tree‐ring dataset collected at ~3000 permanent inventory plots, spanning 13 dominant species across the US Mountain West, where experienced strong drought has observed in past two decades, test hypothesis that explain We found substantial increases variability temporal autocorrelation well declining resistance for a number over second half 20th century. Declining low were strongly associated with cross‐ within‐species patterns Resilience had similar explicative power compared climate stand structure, covariance structure among predictors implied effect on mortality could partially be explained by variables. conclude offers highly valuable insights physiology integrating stressors may only moderate potential large‐scale projections under change.

Язык: Английский

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Surviving in Changing Forests: Abiotic Disturbance Legacy Effects on Arthropod Communities of Temperate Forests

Current Forestry Reports, Год журнала: 2023, Номер 9(4), С. 189 - 218

Опубликована: Май 8, 2023

Язык: Английский

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A comprehensive resilience assessment of Mexican tree species and their relationship with drought events over the last century

Global Change Biology, Год журнала: 2023, Номер 29(13), С. 3652 - 3666

Опубликована: Апрель 7, 2023

The resilience of forests to drought events has become a major natural resource sustainability concern, especially in response climate change. Yet, little is known about the legacy effects repeated droughts, and tree species ability respond across environmental gradients. In this study, we used tree-ring database (121 sites) evaluate overall last century. We investigated how geography affected at level. evaluated temporal trends using predictive mixed linear modeling approach. found that pointer years (e.g., growth reduction) occurred during 11.3% 20th century, with an average decrease 66% compared previous period. occurrence was associated negative values Standardized Precipitation Index (SPI, 81.6%) Palmer Drought Severity (PDSI, 77.3%). Tree differed their capacity, however, inhabiting xeric conditions were less resistant but higher recovery rates Abies concolor, Pinus lambertiana, jeffreyi). On average, needed 2.7 recover from events, extreme cases requiring more than decade reach pre-drought rates. main abiotic factor related precipitation, confirming some are better adapted resist droughts. variation for all indices (scaled 100), decreasing resistance (-0.56 by decade) (-0.22 decade), (+1.72 relative rate (+0.33 decade). Our results emphasize importance time series forest resilience, particularly distinguishing species-level context which likely frequent intense under changing climate.

Язык: Английский

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Species diversity and competition have minor effects on the growth response of silver fir, European larch and Douglas fir to drought

Agricultural and Forest Meteorology, Год журнала: 2023, Номер 341, С. 109664 - 109664

Опубликована: Авг. 26, 2023

With climate change, the frequency and duration of droughts are increasing, strongly impacting forest ecosystems. Therefore, a thorough understanding factors influencing tree response to drought is needed. Particularly, it remains unclear how competition species diversity influence sensitivity species. Thinning (i.e., lowering competition) mixing increasing diversity) two common management practices that thought help forests cope with droughts. However, their actual effects still controversial. We sampled measured tree-ring widths 401 conifer trees wide range in neighborhood across bioclimatic gradient Switzerland. Based on mixed-effects models correlations, we examined silver fir, European larch Douglas fir analyzed affect radial growth sensitivity. Silver was least sensitive temperature, precipitation, climatic water balance. When combined balance, over past 20 years, found usually had negative effect three species, while no effect. when focusing resilience, for only, more mixed enhanced resilience fir. Larch showed higher than At most sites, all recovered within years after severe 2003 2018. Overall, our results suggest have minor

Язык: Английский

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