Radiation, Air Temperature, and Soil Water Availability Drive Tree Water Deficit Across Temporal Scales in Canada's Western Boreal Forest DOI Creative Commons
Nia Perron, Jennifer L. Baltzer, Matteo Detto

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(8)

Published: April 10, 2024

Abstract Changes are projected for the boreal biome with complex and variable effects on forest vegetation including drought‐induced tree mortality loss. With soil atmospheric conditions governing drought intensity, specific drivers of trees water stress can be difficult to disentangle across temporal scales. We used wavelet analysis causality detection identify potential environmental controls (evapotranspiration, moisture, rainfall, vapor pressure deficit, air temperature photosynthetically active radiation) daily deficit longer periods dehydration in black spruce tamarack. Daily was controlled by radiation, temperature, causing greater stand evapotranspiration. Prolonged (multi‐day) were regulated radiation moisture. provide empirical evidence that continued warming drying will cause short‐term increases tamarack transpiration, but reduced availability.

Language: Английский

Transit Time Estimation in Catchments: Recent Developments and Future Directions DOI Creative Commons
Paolo Benettin, Nicolas Rodriguez, Matthias Sprenger

et al.

Water Resources Research, Journal Year: 2022, Volume and Issue: 58(11)

Published: Nov. 1, 2022

Abstract Water transit time is now a standard measure in catchment hydrological and ecohydrological research. The last comprehensive review of modeling approaches was published 15+ years ago. But since then the field has largely expanded with new data, theory applications. Here, we these developments focus on water‐age‐balance data‐based approaches. We discuss compare methods including StorAge‐Selection functions, well/partially mixed compartments, water age tracking through spatially distributed models, direct estimates from controlled experiments, young fractions, ensemble hydrograph separation. unify some heterogeneity literature that crept many approaches, an attempt to clarify key differences similarities among them. Finally, point open questions research, what still need theory, work, community practice.

Language: Английский

Citations

91
Variations in water sources used by winter wheat across distinct rainfall years in the North China Plain DOI
Jun‐Ming Liu, Zhuanyun Si, Shuang Li

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 618, P. 129186 - 129186

Published: Jan. 28, 2023

Language: Английский

Citations

27
Toward a common methodological framework for the sampling, extraction, and isotopic analysis of water in the Critical Zone to study vegetation water use DOI Creative Commons
Natalie Ceperley, Teresa E. Gimeno, Suzanne Jacobs

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(4)

Published: March 5, 2024

Abstract The analysis of the stable isotopic composition hydrogen and oxygen in water samples from soils plants can help to identify sources vegetation uptake. This approach requires that heterogeneous nature plant soil matrices is carefully accounted for during experimental design, sample collection, extraction analyses. comparability shortcomings different methods extracting analyzing have been discussed specialized literature. Yet, despite insightful comparisons benchmarking methodologies laboratories worldwide, community still lacks a roadmap guide extraction, analyses, many practical issues potential users remain unresolved: example, which (soil or plant) pool(s) does extracted represent? These constitute hurdle implementation by newcomers. Here, we summarize discussions led framework COST Action WATSON (“WATer isotopeS critical zONe: groundwater recharge transpiration”—CA19120). We provide guidelines (1) sampling material analysis, (2) laboratory situ (3) measurements composition. highlight importance considering process chain as whole, design minimize biased estimates relative contribution conclude acknowledging some limitations this methodology advice on collection key environmental parameters prior article categorized under: Science Water > Hydrological Processes Environmental Change Extremes

Language: Английский

Citations

10
Dendrometer as a water stress indicator for apple trees DOI Creative Commons
Thainná Waldburger, Achim Walter, Marianne Cockburn

et al.

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 309, P. 109326 - 109326

Published: Jan. 23, 2025

Language: Английский

Citations

1
Biomass allocation and nutrient use efficiency in response to water stress: insight from experimental manipulation of balsam fir, concolor fir and white pine transplants DOI

İsmail Koç,

Pascal Nzokou, Bert M. Cregg

et al.

New Forests, Journal Year: 2021, Volume and Issue: 53(5), P. 915 - 933

Published: Nov. 13, 2021

Language: Английский

Citations

41
Phloem water isotopically different to xylem water: Potential causes and implications for ecohydrological tracing DOI
Magali F. Nehemy, Paolo Benettin, Scott T. Allen

et al.

Ecohydrology, Journal Year: 2022, Volume and Issue: 15(3)

Published: March 16, 2022

Abstract The stable isotopes of hydrogen and oxygen in xylem water are often used to investigate tree sources. But this traditional approach does not acknowledge the contribution stored phloem transpiration how may affect source interpretations. Additionally, there is a prevailing assumption that no isotope fractionation during transport. Here, we systematically sampled at daily subdaily resolutions large lysimeter planted with Salix viminalis . Stem diurnal change storage rates were also measured. Our results show significantly less enriched heavy than water. At resolution, observed larger isotopic difference between refilling under periods deficit. These findings contrast expectation heavy‐isotope due downward transport leaf signatures. Because previous evidence aquaporin mediated higher osmotic permeability lighter isotopologues across aquaporins, propose radial xylem–phloem boundary drive relative depletion their enrichment xylem.

Language: Английский

Citations

37
Isotopic offsets between bulk plant water and its sources are larger in cool and wet environments DOI Creative Commons
Javier de la Casa, Adrià Barbeta, Asun Rodríguez‐Uña

et al.

Hydrology and earth system sciences, Journal Year: 2022, Volume and Issue: 26(15), P. 4125 - 4146

Published: Aug. 8, 2022

Abstract. Isotope-based approaches to study plant water sources rely on the assumption that root uptake and within-plant transport are non-fractionating processes. However, a growing number of studies have reported offsets between source stable isotope composition for wide range ecosystems. These isotopic can result in erroneous attribution used by plants potential overestimations groundwater vegetation. We conducted global meta-analysis quantify magnitude these explored whether their variability could be explained either biotic or abiotic factors. Our database compiled 112 spanning arctic tropical biomes dual (δ2H δ18O) (stem) water, including soil (sampled following various methodologies along variable depths). calculated 2H two ways: line conditioned excess (LC-excess) describes deviation from local meteoric (SW-excess) line, each sampling campaign within study. tested effects climate (air temperature content), class, traits (growth form, leaf habit, wood density, parenchyma fraction mycorrhizal habit) LC-excess SW-excess. Globally, stem was more depleted than (SW-excess < 0) 3.02±0.65 ‰ (P 0.05 according estimates our linear mixed model weighted sample size studies). In 95 % cases where SW-excess negative, indicating had not undergone evaporative enrichment (such as groundwater) unlikely explain observed soil–plant offsets. Soil class did any significant effect negative cold wet sites, whereas it positive warm sites. The climatic suggest methodological artefacts sole cause results would imply may lead inaccuracies when using bulk proxy infer sources.

Language: Английский

Citations

35
Species-specific growth and transpiration response to changing environmental conditions in floodplain forest DOI
Justyna Szatniewska, Ina Zavadilová, Ondřej Nezval

et al.

Forest Ecology and Management, Journal Year: 2022, Volume and Issue: 516, P. 120248 - 120248

Published: April 29, 2022

Language: Английский

Citations

29
Challenges in studying water fluxes within the soil-plant-atmosphere continuum: A tracer-based perspective on pathways to progress DOI
Natalie Orlowski, Michael Rinderer, Maren Dubbert

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 881, P. 163510 - 163510

Published: April 12, 2023

Language: Английский

Citations

18
Tracing and Closing the Water Balance in a Vegetated Lysimeter DOI
Paolo Benettin, Magali F. Nehemy, Mitra Asadollahi

et al.

Water Resources Research, Journal Year: 2021, Volume and Issue: 57(4)

Published: March 22, 2021

Abstract Closure of the soil water balance is fundamental to ecohydrology. But closing with hydrometric information offers no insight into age distribution transiting column via deep drainage or combination evaporation and transpiration. This a major challenge in our discipline currently; tracing needed next step. Here we report results from controlled tracer experiment aimed at both its individual components. was carried out on 2.5 m 3 lysimeter planted willow tree. We applied 25 mm isotopically enriched top tracked it for 43 days through water, bottom drainage, plant xylem. then destructively sampled system quantify remaining isotope mass. More than 900 samples were collected stable analysis trace labeled irrigation. used these data when where irrigation became source uptake percolation. Evapotranspiration dominated outflow (88%). Tracing transpiration flux showed further that had fallen as precipitation 1–2 months prior. The breakthrough complex different curves observed within drainage. Given lack direct experimental travel time transpiration, provide first closure all relevant outflows are traced.

Language: Английский

Citations

37