Intra-specific variability in deep water extraction between trees growing on a Mediterranean karst

Carrière, Simon Damien; Ruffault, Julien; Cakpo, Coffi Belmys; Olioso, Albert; Doussan, Claude; Simioni, Guillaume; Chalikakis, Konstantinos; Patris, Nicolas; Davi, Hendrik; Martin‐StPaul, Nicolas

doi:10.1016/j.jhydrol.2020.125428

Cited by 19 publications

(15 citation statements)

References 57 publications

(69 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, an unknown independent stressor would have needed to accidentally co-occur spatially and temporally with the drought. The phenotypical drought response of individual trees may also be influenced by microspatial variation ( Carrière et al, 2020 ). In the present study, however, the mean distance between sampled paired trees of about 5 m assured that their roots systems largely overlapped.…”

Section: Discussionmentioning

confidence: 99%

Genomic basis for drought resistance in European beech forests threatened by climate change

Pfenninger

Reuss

Kiebler

et al. 2021

eLife

View full text Add to dashboard Cite

In the course of global climate change, central Europe is experiencing more frequent and prolonged periods of drought. The drought years 2018 and 2019 affected European beeches (Fagus sylvatica L.) differently: even in the same stand, drought damaged trees neighboured healthy trees, suggesting that the genotype rather than the environment was responsible for this conspicuous pattern. We used this natural experiment to study the genomic basis of drought resistance with Pool-GWAS. Contrasting the extreme phenotypes identified 106 significantly associated SNPs throughout the genome. Most annotated genes with associated SNPs (>70%) were previously implicated in the drought reaction of plants. Non-synonymous substitutions led either to a functional amino acid exchange or premature termination. A SNP-assay with 70 loci allowed predicting drought phenotype in 98.6% of a validation sample of 92 trees. Drought resistance in European beech is a moderately polygenic trait that should respond well to natural selection, selective management, and breeding.

show abstract

Section: Discussionmentioning

confidence: 99%

Genomic basis for drought resistance in European beech forests threatened by climate change

Pfenninger

Reuss

Kiebler

et al. 2021

eLife

View full text Add to dashboard Cite

show abstract

“…Indeed, it would be difficult to predict when the tree is under stress based on soil moisture alone. Tree water status is greatly dependent on available water to individual trees, which can influence water uptake patterns (S. D. Carrière, Ruffault, et al, 2020). This was clear even in very early work on soil water status where Holmes and Robertson, (1959, p. 103) noted that “it is clear that any accurate description of the moisture status of a soil will not be simple.…”

Section: Discussionmentioning

confidence: 99%

Tree water deficit and dynamic source water partitioning

Nehemy

Benettin

Asadollahi

et al. 2020

Hydrological Processes

View full text Add to dashboard Cite

The stable isotopes of hydrogen and oxygen (δ 2 H and δ 18 O, respectively) have been widely used to investigate tree water source partitioning. These tracers have shed new light on patterns of tree water use in time and space. However, there are several limiting factors to this methodology (e.g., the difficult assessment of isotope fractionation in trees, and the labor-intensity associated with the collection of significant sample sizes) and the use of isotopes alone has not been enough to provide a mechanistic understanding of source water partitioning. Here, we combine isotope data in xylem and soil water with measurements of tree's physiological information including tree water deficit (TWD), fine root distribution, and soil matric potential, to investigate the mechanism driving tree water source partitioning. We used a 2 m 3 lysimeter with willow trees (Salix viminalis) planted within, to conduct a high spatial-temporal resolution experiment. TWD provided an integrated response of plant water status to water supply and demand. The combined isotopic and TWD measurement showed that short-term variation (within days) in source water partitioning is determined mainly by plant hydraulic response to changes in soil matric potential. We observed

show abstract

“…Nourtier et al [2014] showed that silver firs in the northern part of the Ventoux mountain were withdrawing water as deep as 4 m and possibly further in some part of the area. Carrière et al [2020a] has proved by isotopic monitoring that during dry summers, a noticeable part of the water consumed by the trees comes from deep reservoir underground.…”

Section: Discussionmentioning

confidence: 99%

“…Tree roots are penetrating through rocks fractures and are able to access underground horizons that are deeper than the one explored through soil pits [Allard et al, 2008, Rambal, 1982. This behaviour may be exacerbated in dry periods as shown by Carrière et al [2020aCarrière et al [ , 2020b through the analysis of transpired water origin using water isotopes concentration. This may have a large implication on the derivation of the SAWC map over the Fontaine de Vaucluse watershed.…”

Section: Simpkcet Implementationmentioning

confidence: 99%

An evapotranspiration model driven by remote sensing data for assessing groundwater resource in karst watershed

Ollivier

Olioso

Carrière

et al. 2021

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Intra-specific variability in deep water extraction between trees growing on a Mediterranean karst

Cited by 19 publications

References 57 publications

Genomic basis for drought resistance in European beech forests threatened by climate change

Genomic basis for drought resistance in European beech forests threatened by climate change

Tree water deficit and dynamic source water partitioning

An evapotranspiration model driven by remote sensing data for assessing groundwater resource in karst watershed

Contact Info

Product

Resources

About