Tree post‐drought recovery: scenarios, regulatory mechanisms and ways to improve DOI
Ilya E. Zlobin

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: 99(5), P. 1595 - 1612

Published: April 5, 2024

Efficient post-drought recovery of growth and assimilation enables a plant to return its undisturbed state functioning. Unlike annual plants, trees suffer not only from the current drought, but also cumulative impacts consecutive water stresses which cause adverse legacy effects on survival performance. This review provides an integrated assessment ecological, physiological molecular evidence photosynthesis in trees, with view informing breeding better ability recover stress. Suppression processes can result stress damage controlled downshift as part tree acclimation water-limited conditions. In latter case, could potentially be activated by turning off controlling mechanisms, several obstacles make this unlikely. Tree phenology, specifically photoperiodic constraints, limit photosynthesis, targeting these constraints may represent promising way breed enhanced post-drought. The mechanisms photoperiod-dependent regulation shoot, secondary root are reviewed. Finally, limitations trade-offs altering discussed.

Language: Английский

Contrasting impact of extreme soil and atmospheric dryness on the functioning of trees and forests DOI Creative Commons
Ankit Shekhar, Lukas Hörtnagl, Eugénie Paul‐Limoges

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 916, P. 169931 - 169931

Published: Jan. 8, 2024

Recent studies indicate an increase in the frequency of extreme compound dryness days (days with both soil AND air dryness) across central Europe future, little information on their impact functioning trees and forests. This study aims to quantify assess dryness, For this, >15 years ecosystem-level (carbon dioxide water vapor fluxes) 6-10 tree-level measurements (transpiration growth) each from a montane mixed deciduous forest (CH-Lae) subalpine evergreen coniferous (CH-Dav) Switzerland, is used. The results showed limitation CO

Language: Английский

Citations

18
Vegetation Greening and Climate Warming Increased the Propagation Risk From Meteorological Drought to Soil Drought at Subseasonal Timescales DOI Creative Commons
Feng Ma, Xing Yuan

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(4)

Published: Feb. 20, 2024

Abstract Subseasonal droughts including flash have occurred frequently in recent years, which are accompanied by heatwaves or wildfires that raise a wide concern on environmental risk. However, the changing characteristics of subseasonal drought propagation, and possible climate drivers remain unknown. This study quantifies propagation from meteorological to soil using Copula‐based Bayesian framework, shows higher risks mainly occur more humid regions with denser vegetation cover. Trends risk vary regionally, global increase 2%/decade ( p < 0.01) during 1980–2022. Vegetation greening warming key over >71% vegetated lands, mean contribution rates 39.5% 36.5% respectively. Other climatic factors vapor pressure deficit precipitation also paly critical roles, closely correlate temperature vegetation. These findings highlight importance dynamics.

Language: Английский

Citations

17
Consistent time allocation fraction to vegetation green-up versus senescence across northern ecosystems despite recent climate change DOI Creative Commons
Fandong Meng, Andrew J. Felton, Jiafu Mao

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(23)

Published: June 7, 2024

Extended growing season lengths under climatic warming suggest increased time for plant growth. However, research has focused on impacts to the timing or duration of distinct phenological events. Comparatively little is known about relative allocation events, example, proportion dedicated leaf growth versus senescence. We use multiple satellite and ground-based observations show that, despite recent climate change during 2001 2020, ratio allocated vegetation green-up over senescence remained stable [1.27 (± 0.92)] across more than 83% northern ecosystems. This stability independent changes in caused by widespread positive relationships among events; longer results These empirical were also partly reproduced 13 dynamic global models. Our work demonstrates an intrinsic biotic control phenology that could explain change.

Language: Английский

Citations

9
No winter halt in below-ground wood growth of four angiosperm deciduous tree species DOI
Lorène Julia Marchand, Jožica Gričar, Paolo Zuccarini

et al.

Nature Ecology & Evolution, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Language: Английский

Citations

1
Soil respiration and its temperature sensitivity in Pinus koraiensis plantations are mediated by temperature, humidity, and wind speed DOI Creative Commons

lianqiang li,

Huixia Yang,

Hongyu Li

et al.

Trees Forests and People, Journal Year: 2025, Volume and Issue: unknown, P. 100784 - 100784

Published: Jan. 1, 2025

Language: Английский

Citations

1
Vegetation Types Shift Physiological and Phenological Controls on Carbon Sink Strength in a Coastal Zone DOI
Siyu Wei, Adina Paytan, Xiaojing Chu

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 1, 2025

ABSTRACT The carbon sink function performed by the different vegetation types along environmental gradient in coastal zones plays a vital role mitigating climate change. However, inadequate understanding of its spatiotemporal variations across and associated regulatory mechanisms hampers determining potential shifts changing climate. Here, we present long‐term (2011–2022) eddy covariance measurements net ecosystem exchange (NEE) CO 2 at three sites with (tidal wetland, nontidal cropland) zone to examine type on annual strength. We found that study are stable sinks influenced their distinct physiological phenological factors. NEE tidal cropland were determined predominantly seasonal peaks uptake, release, duration uptake period. Furthermore, changes sensitive climatic variables, as spring mean air temperature reduced strength maximum daily precipitation summer it global radiation elicited same effect cropland. Finally, worldwide database was compiled, using which further validated consistency biological controls. Overall, these results emphasize importance considering underlying influence for accurate forecasting dynamics under

Language: Английский

Citations

1
Microplastics in the atmosphere: Adsorb on leaves and their effects on the phyllosphere bacterial community DOI
Libo Xu, Kang Li,

Xinyi Bai

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 462, P. 132789 - 132789

Published: Oct. 15, 2023

Language: Английский

Citations

20
Recurrent summer drought affects biomass production and community composition independently of snowmelt manipulation in alpine grassland DOI Creative Commons
Patrick Möhl, Maria Vorkauf, Ansgar Kahmen

et al.

Journal of Ecology, Journal Year: 2023, Volume and Issue: 111(11), P. 2357 - 2375

Published: Aug. 23, 2023

Abstract Earlier snowmelt and more frequent summer drought due to climate warming are considered particularly influential for extratropical alpine plants, which adapted a short growing season high water availability. Here, we explored the combined effects of two drivers with field experiment in late‐successional grassland Swiss Alps (2500 m a.s.l.) over 6–7 years. We advanced delayed by removing adding snow experimental plots prior natural 7 years this treatment 5 10 weeks 6 measured plant biomass formation, community composition ecosystem respiration, monitored soil moisture as well temperature. Natural dates varied 42 days across Snow manipulations 4.6 8.0 on average but did not affect annual growth (peak biomass) above‐ nor below‐ground. Interactions between were nonsignificant, implying that independent snowmelt. Drought reduced total above‐ground 10‐week 16 ± 7% years, while 5‐week lowered last year only. This decline was accountable sensitivity production few forb graminoid species. In contrast, dominant sedge Carex curvula , whose proportion cover increased from 36% controls 48% drought. Below‐ground slightly under (5‐week only), resulting higher root mass fraction (both treatments). Despite continued respiration 13%–23% per season, assessed nine times during three seasons. Since than 85% stemmed below‐ground activities roots drought, assume microorganisms heavily constrained treatments. Synthesis. conclude timing is unrelated productivity, recurrent will shift allocation shoots typical grassland, potential implications grazers also nutrient carbon cycling. Species‐specific drought‐sensitivity considerably alter

Language: Английский

Citations

18
Divergent responses of woody plant leaf and root non-structural carbohydrates to nitrogen addition in China: Seasonal variations and ecological implications DOI

Rui Mou,

Jian Yi,

Dengjie Zhou

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 950, P. 175425 - 175425

Published: Aug. 10, 2024

Language: Английский

Citations

7
Conflicting Changes of Vegetation Greenness Interannual Variability on Half of the Global Vegetated Surface DOI Creative Commons
Jiaqi Tian, Xiangzhong Luo

Earth s Future, Journal Year: 2024, Volume and Issue: 12(5)

Published: April 26, 2024

Abstract Changes in the interannual variability (IAV) of vegetation greenness and carbon sequestration are key indicators stability climate sensitivities terrestrial ecosystems. Recent studies have examined changes IAV using atmospheric CO 2 observations dynamic global models (DGVMs), however, reported different even contradictory trends. Here, we investigate greenness, quantified as coefficient (CV), over past few decades based on multiple satellite remote sensing products DGVMs. Our results suggested that, half vegetated surface (mostly tropics), CV trends detected by conflicting. We found that 22.20% 28.20% non‐tropical land surface) show significant positive negative ( p ≤ 0.1), respectively. Regions with higher air temperature greater aridity tend to increasing trends, whereas greening trend nitrogen deposition lead smaller DGVMs generally cannot capture obtained from products, while inconsistency among is likely caused their process algorithms rather than sensors utilized. study closely examines highlights substantial uncertainty when response ecosystems change.

Language: Английский

Citations

6