Charlotte Grossiord
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View article: Thermal acclimation fails to confer a carbon budget advantage to invasive species over natives
Thermal acclimation fails to confer a carbon budget advantage to invasive species over natives Open
Both native and invasive plants can adjust photosynthesis and respiration when exposed to warmer temperatures. However, it is uncertain whether invasive plants are more plastic and exhibit higher acclimation to rising temperatures than nat…
View article: Impact of emerging compound droughts on forests: A water supply and demand perspective
Impact of emerging compound droughts on forests: A water supply and demand perspective Open
The intensification of climate change‐induced drought results in unprecedented tree and forest die‐offs worldwide, increasingly driven by compound droughts. In this review, we examine the impacts of emerging compound droughts, which involv…
View article: Root vulnerability to embolism and lack of physiological recovery limit the competitive ability of an invasive palm
Root vulnerability to embolism and lack of physiological recovery limit the competitive ability of an invasive palm Open
Summary Climate change and invasive species both threaten forest ecosystems. While exacerbated droughts drive tree mortality, species invasion alters forest composition. Invasive plants may be more vulnerable to drought due to acquisitive …
View article: Thermal acclimation fails to confer a carbon budget advantage to invasive species over natives
Thermal acclimation fails to confer a carbon budget advantage to invasive species over natives Open
Both native and invasive plants can adjust photosynthesis and respiration when exposed to warmer temperatures. However, it is uncertain if invasive plants are more plastic and exhibit higher acclimation to rising temperatures than native o…
View article: PANDA: A simple and affordable chamber system for measuring the whole-plant net CO<sub>2</sub>flux
PANDA: A simple and affordable chamber system for measuring the whole-plant net CO<sub>2</sub>flux Open
Summary The carbon (C) balance of plants is the sum of all source and sink processes. However, due to methodological limitations, most studies focus predominantly on measurements of leaf-level assimilation and respiration, with less attent…
View article: Tree functioning under different soil water availability and atmospheric water demand
Tree functioning under different soil water availability and atmospheric water demand Open
As a consequence of ongoing climate change, trees are increasingly exposed to atmospheric and soil drought. The project “ VPDrought - a novel approach to disentangle atmospheric and soil drought ” investigates how trees respond to distinct…
View article: VPDrought – a novel approach to disentangle atmospheric and soil drought in a natural Scots pine forest
VPDrought – a novel approach to disentangle atmospheric and soil drought in a natural Scots pine forest Open
In recent years, an increasing number of studies have reported on forest declines and shifts in species composition in response to changing climatic conditions (Rigling et al. 2012). The intensification of droughts through rising evaporati…
View article: Growth Onset Rather Than Photosynthesis Strongly Regulates Autumn Senescence Termination Besides Climate Change
Growth Onset Rather Than Photosynthesis Strongly Regulates Autumn Senescence Termination Besides Climate Change Open
Aim Plant senescence largely influences the global carbon cycle by regulating the growing season length. However, the driving mechanisms of plant senescence remain unclear, particularly the role of developmental factors. This study aims to…
View article: Prolonged warming and drought reduce canopy‐level net carbon uptake in beech and oak saplings despite photosynthetic and respiratory acclimation
Prolonged warming and drought reduce canopy‐level net carbon uptake in beech and oak saplings despite photosynthetic and respiratory acclimation Open
Summary Tree net carbon (C) uptake may decrease under global warming, as higher temperatures constrain photosynthesis while simultaneously increasing respiration. Thermal acclimation might mitigate this negative effect, but its capacity to…
View article: Acclimation to High Vapor Pressure Deficit in Warmer Air Can Reduce Tree Vulnerability to Drought‐Induced Mortality
Acclimation to High Vapor Pressure Deficit in Warmer Air Can Reduce Tree Vulnerability to Drought‐Induced Mortality Open
Climate change imposes new constraints on tree survival, emphasising two key parameters: the vapour pressure deficit (VPD) and air temperature. Yet, no study has experimentally evaluated drought‐induced tree mortality risk following acclim…
View article: Species Composition Shapes Canopy Microclimate and Foliar Traits Without Enhancing Photosynthetic Thermal Acclimation in Beech and Oak Forests
Species Composition Shapes Canopy Microclimate and Foliar Traits Without Enhancing Photosynthetic Thermal Acclimation in Beech and Oak Forests Open
View article: Temperature and leaf form drive contrasting sensitivity to nitrogen deposition across European forests
Temperature and leaf form drive contrasting sensitivity to nitrogen deposition across European forests Open
Raised emissions of biologically reactive nitrogen (N) have intensified N deposition, enhancing tree productivity globally. Nonetheless, the drivers of forest sensitivity to N deposition remain unknown. We used stem growth data from 62,000…
View article: Mixing oak and pine trees in Mediterranean forests increases aboveground hydraulic dysfunctions
Mixing oak and pine trees in Mediterranean forests increases aboveground hydraulic dysfunctions Open
Increasing tree species diversity in Mediterranean forests could reduce drought‐induced hydraulic impairments through improved microclimate and reduced competition for water. However, it remains unclear if and how species diversity modulat…
View article: Quantifying the impact of urban trees on air quality in Geneva, Switzerland
Quantifying the impact of urban trees on air quality in Geneva, Switzerland Open
View article: Tree drought–mortality risk depends more on intrinsic species resistance than on stand species diversity
Tree drought–mortality risk depends more on intrinsic species resistance than on stand species diversity Open
Increasing tree diversity is considered a key management option to adapt forests to climate change. However, the effect of species diversity on a forest's ability to cope with extreme drought remains elusive. In this study, we assessed dro…
View article: Drought effects in Mediterranean forests are not alleviated by diversity‐driven water source partitioning
Drought effects in Mediterranean forests are not alleviated by diversity‐driven water source partitioning Open
Tree species diversity in forest ecosystems could reduce their vulnerability to extreme droughts through improved microclimate and below‐ground water source partitioning driven by contrasting species‐specific water use patterns. However, l…
View article: High heat tolerance, evaporative cooling, and stomatal decoupling regulate canopy temperature and their safety margins in three European oak species
High heat tolerance, evaporative cooling, and stomatal decoupling regulate canopy temperature and their safety margins in three European oak species Open
Heatwaves and soil droughts are increasing in frequency and intensity, leading many tree species to exceed their thermal thresholds, and driving wide‐scale forest mortality. Therefore, investigating heat tolerance and canopy temperature re…
View article: Soil warming alters tree water use and canopy stomatal conductance in a mixed subtropical forest
Soil warming alters tree water use and canopy stomatal conductance in a mixed subtropical forest Open
View article: In vivo X-ray microtomography locally affects stem radial growth with no immediate physiological impact
In vivo X-ray microtomography locally affects stem radial growth with no immediate physiological impact Open
Microcomputed tomography (µCT) is a nondestructive X-ray imaging method used in plant physiology to visualize in situ plant tissues that enables assessments of embolized xylem vessels. Whereas evidence for X-ray-induced cellular damage has…
View article: Tree water uptake patterns across the globe
Tree water uptake patterns across the globe Open
Summary Plant water uptake from the soil is a crucial element of the global hydrological cycle and essential for vegetation drought resilience. Yet, knowledge of how the distribution of water uptake depth (WUD) varies across species, clima…
View article: Nature-based solution enhances resilience to flooding and catalyzes multi-benefits in coastal cities in the Global South
Nature-based solution enhances resilience to flooding and catalyzes multi-benefits in coastal cities in the Global South Open
View article: Tree diversity reduces variability in sapling survival under drought
Tree diversity reduces variability in sapling survival under drought Open
Enhancing tree diversity may be important to fostering resilience to drought‐related climate extremes. So far, little attention has been given to whether tree diversity can increase the survival of trees and reduce its variability in young…
View article: Spatio-temporal mapping of groundwater-related flooding using two methods: piezometric levels and Sentinel-2 based remote sensing
Spatio-temporal mapping of groundwater-related flooding using two methods: piezometric levels and Sentinel-2 based remote sensing Open
The purpose of this study is to assess the efficacy and validity of using piezometric data and remotely sensed data to spatially and temporally map groundwater-related flooding, using Nouakchott, Mauritania as a case study.Despite a warm a…
View article: Nature-based solution enhances resilience to saturation excess flooding in coastal cities in the Global South
Nature-based solution enhances resilience to saturation excess flooding in coastal cities in the Global South Open
Coastal cities are facing a rise in groundwater levels induced by sea level rise, further triggering saturation excess flooding where groundwater levels reach the topographic surface or reduce the storage capacity of the soil, thus putting…
View article: Evolutionary drivers of phenotypic traits in two European tree species &#8211; evidence from common garden networks
Evolutionary drivers of phenotypic traits in two European tree species – evidence from common garden networks Open
Evolutionary processes such as phenotypic plasticity and genetic adaptation are key mechanisms that have enabled tree species to cope with major changes in their environments and to colonize new areas over millennia. Forest populations are…
View article: How quickly are canopy temperatures approaching their critical limit in the tropics?
How quickly are canopy temperatures approaching their critical limit in the tropics? Open
Tropical forests host Earth’s highest biodiversity and act as global climate regulators more than any other biome. In a world where heat waves become increasingly severe and recurrent, especially in the Amazon, it becomes crucial to …
View article: Impact of rising temperature and drought on forest ecosystems across scales
Impact of rising temperature and drought on forest ecosystems across scales Open
Recent decades have been characterized by increasing temperatures worldwide, resulting in an exponential climb in vapor pressure deficit (VPD) and soil droughts. Heat and VPD have been identified as increasingly important drivers of plant …
View article: Enhanced secondary growth induced by warmer temperatures in early summer advances autumn leaf senescence in temperate saplings
Enhanced secondary growth induced by warmer temperatures in early summer advances autumn leaf senescence in temperate saplings Open
Phenological events in temperate plants are highly dependent on external factors such as temperature and photoperiod, but also on internal factors linked to the plant's development. Recent studies have demonstrated a strong correlation bet…
View article: Disentangling the impact of air temperature, vapor pressure deficit, and soil drought on photosynthesis, transpiration, and embolism
Disentangling the impact of air temperature, vapor pressure deficit, and soil drought on photosynthesis, transpiration, and embolism Open
Heatwaves are becoming more frequent, with higher temperatures, drier air and reduced soil water availability. However, as increasing temperature, increasing VPD and soil drought are often coupled in nature, especially during heat waves, t…
View article: Nitrogen deposition effect on tree growth depends on climate, tree size, and leaf habit
Nitrogen deposition effect on tree growth depends on climate, tree size, and leaf habit Open
The increase of nitrogen (N) deposition is a human-induced process associated with industry and agriculture that disrupts the nitrogen biogeochemical cycle. N deposition has been associated with environmental impacts such as land carbon si…