Cavitron extraction of xylem water suggests cryogenic extraction biases vary across species but are independent of tree water stress DOI Open Access
Clément Duvert, Adrià Barbeta, Lindsay B. Hutley

et al.

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 15, 2023

Cryogenic vacuum distillation (CVD) is a widely used technique for extracting plant water from stems isotopic analysis, but concerns about potential biases have emerged. Here, we leverage the Cavitron centrifugation to extract xylem and compare its signature that of CVD-extracted stem as well source water. Conducted under field conditions in tropical northern Australia, our study spans seven tree species naturally experiencing range stress levels. Our findings reveal significant deuterium bias bulk when compared (median -14.9‰), whereas closely aligned with offset -1.9‰). We find substantial variations among (bias ranging -19.3 -9.1‰), intriguingly, CVD-induced were unrelated environmental factors such relative content pre-dawn leaf potential. These results imply inter-specific differences may be driven by anatomical traits rather than hydraulic functioning. Additionally, data highlight use site-specific offset, based on local water, correcting biases.

Language: Английский

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

11
UAV‐Based Land Surface Temperatures and Vegetation Indices Explain and Predict Spatial Patterns of Soil Water Isotopes in a Tropical Dry Forest DOI Creative Commons
Matthias Beyer, Alberto Iraheta,

Malkin Gerchow

et al.

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(2)

Published: Feb. 1, 2025

Abstract The spatial variation of soil water isotopes (SWI)—representing the baseline for investigating root uptake (RWU) depths with stable isotope techniques—has rarely been investigated. Here, we use SWI depth profile sampling in combination unmanned aerial vehicle (UAV) based land surface temperature estimates and vegetation indices (VI) order to improving process understanding relationships between variability content patterns canopy status, represented form VI. We carried out a 10 profiles tropical dry forest. UAV data were collected analyzed obtain detailed characterization status. then performed statistical analysis VI temperatures values at different resolutions (3 cm–5 m). Best used generating isoscapes entire study area. Results suggest that are strongly mediated by parameters (VI). Various correlate across all depths. depend on ( R 2 0.66 δ 18 O 0.64 H). Strongest overall correlations found resolution 0.5 m. speculate this might be ideal spatially characterizing investigate RWU forest environments. Supporting analyses UAV‐based approaches future avenue representation credibility such studies.

Language: Английский

Citations

1
Advancing isotope‐enabled hydrological modelling for ungauged calibration of data‐scarce humid tropical catchments DOI Creative Commons
Andrew Watson, Sven Kralisch, Jodie Miller

et al.

Hydrological Processes, Journal Year: 2024, Volume and Issue: 38(2)

Published: Feb. 1, 2024

Abstract Realistic projections of the future climate and how this translates to water availability is crucial for sustainable resource management. However, data constrains capacity simulate streamflow corresponding hydrological processes. Developing more robust models methods that can circumvent need large amounts hydro‐climatic support water‐related decisions, particularly in developing countries. In study, we use natural isotope tracers addition hydro‐climate within a newly developed version spatially‐distributed J2000iso as an isotope‐enabled rainfall‐runoff model simulating both stable (δ 2 H) fluxes. We pilot humid tropical San Carlos catchment (2500 km ) northeastern Costa Rica, which has limited time series, but spatially distributed data. The added benefit isotopes was assessed by comparing different observation using three calibration strategies (i) gauges, (ii) gauges with stream (iii) only. achieved Kling–Gupta efficiency (KGE) 0.55–0.70 across all differences process simulations emerged when including calibration. Hydrological simulation varied between standard J2000 high simulated surface runoff proportion 37% opposed 84%–89% baseflow or interflow. solutions used only exhibited interflow, performance captured bulk balances reasonable match observed hydrographs. conclude shown potential balance modelling ungauged catchments isotope, satellite global reanalysis sets.

Language: Английский

Citations

8
Cavitron extraction of xylem water suggests cryogenic extraction biases vary across species but are independent of tree water stress DOI Creative Commons
Clément Duvert, Adrià Barbeta, Lindsay B. Hutley

et al.

Hydrological Processes, Journal Year: 2024, Volume and Issue: 38(2)

Published: Feb. 1, 2024

Abstract Cryogenic vacuum distillation (CVD) is a widely used technique for extracting plant water from stems isotopic analysis, but concerns about potential biases have emerged. Here, we leverage the Cavitron centrifugation to extract xylem and compare its signature that of CVD‐extracted bulk stem as well source water. Conducted under field conditions in tropical northern Australia, our study spans seven tree species naturally experiencing range stress levels. Our findings reveal significant deuterium bias when compared (median −14.9‰), whereas closely aligned with offset −1.9‰). We find substantial variations among (bias ranging −19.3‰ −9.1‰), intriguingly, CVD‐induced were unrelated environmental factors such relative content predawn leaf potential. These results imply inter‐specific differences may be driven by anatomical traits rather than hydraulic functioning. Additionally, data highlight use site‐specific offset, based on local water, correcting biases.

Language: Английский

Citations

4
Towards an isotope-based conceptual catchment model of the ecohydrological cycle in the Critical Zone on the Loess Plateau of China DOI
Jinzhao Liu, Daniele Penna, Xiong Xiao

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133042 - 133042

Published: March 1, 2025

Language: Английский

Citations

0
Does high resolution in situ xylem and atmospheric vapor isotope data help improve modeled estimates of ecohydrological partitioning? DOI Creative Commons
Christian Birkel, Doerthe Tetzlaff, Ann‐Marie Ring

et al.

Agricultural and Forest Meteorology, Journal Year: 2025, Volume and Issue: 365, P. 110467 - 110467

Published: March 1, 2025

Language: Английский

Citations

0
Inter-comparison of extraction methods for plant water isotope analysis and its indicative significance DOI
Mingyi Wen,

Xining Zhao,

Bingcheng Si

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 625, P. 130015 - 130015

Published: Aug. 10, 2023

Language: Английский

Citations

8
Tracing isotope precipitation patterns across Mexico DOI Creative Commons
Ricardo Sánchez‐Murillo,

Luis González‐Hita,

Miguel A. Mejía-González

et al.

PLOS Water, Journal Year: 2023, Volume and Issue: 2(10), P. e0000136 - e0000136

Published: Oct. 11, 2023

Mexico encompasses a large spectrum of landscapes with topographic, geographic, and climatic factors interacting in complex ecohydrological setting. For decades, isotope hydrogeological tools have been applied using short-term or seasonal local meteoric water lines as valid input functions. Yet, systematic evaluation characteristics is still lacking. Here we report on the spatial temporal variations 21 precipitation monitoring stations across Mexico. Our database includes 608 monthly samples collected from 2018 to 2021 over four regions (between 5 2,365 m asl): Pacific coast, Gulf Mexico/Caribbean Sea region, Central Northern plateaus. Precipitation δ 18 O seasonality dry (winter) wet season (summer) was characterized by notable W-shaped variability. Monthly amounts compositions exhibited poor strong linear regressions ( Adj . r 2 <0.01 0.75), inverse (positive) relationships northern monsoon-affected region. Low d -excess (5.1 9.7‰) corresponded greater terrestrial moisture contributions (20.5%) arid regions. Moisture inputs Ocean were associated near-equilibrium values (8.8 14.3‰), respectively. The best-fit models for = 0.85) H 0.88) determined topographic geographical predictors, resulting an updated high-resolution isoscape (100 grid) Orographic barriers (-2.10‰ O/km) coupled interaction tropical cyclones cold fronts, evolution North American Monsoon system, passage easterly trade winds play remarkable role controlling rainfall findings provide robust baseline ecohydrological, climatic, forensic, archeological, paleoclimate studies America.

Language: Английский

Citations

5
Tracing isotope precipitation patterns across Mexico DOI Creative Commons
Ricardo Sánchez‐Murillo,

Luis González‐Hita,

Miguel Mejía-González

et al.

EarthArXiv (California Digital Library), Journal Year: 2023, Volume and Issue: unknown

Published: May 4, 2023

Mexico encompasses a large spectrum of landscapes with topographic, geographic, and climatic factors interacting in complex ecohydrological setting. For decades, isotope hydrogeological tools have been applied using short-term or seasonal local meteoric water lines as valid input functions. Yet, systematic evaluation characteristics is still lacking. Here we report on the spatial temporal variations 21 precipitation monitoring stations across Mexico. Our database includes 608 monthly samples collected from 2018 to 2021 over four regions (between 5 2,365 m asl): Pacific coast, Gulf Mexico/Caribbean Sea region, Central Northern Plateaus. Precipitation δ18O seasonality dry (winter) wet season (summer) was characterized by notable W-shaped variability. Monthly amounts compositions exhibited poor strong linear regressions (Adj. r20.01 0.75), inverse (positive) relationships northern monsoon-affected region. Low d-excess (5.1 9.7‰) corresponded greater terrestrial moisture contributions (20.5%) arid regions. Moisture inputs Ocean were associated near-equilibrium values (8.8 14.3‰), respectively. The best-fit models for r2=0.85) δ2H r2=0.88) determined topographic geographical predictors, resulting an updated high-resolution isoscape (100 m2 grid) Orographic barriers (-2.10‰ δ18O/km) coupled interaction tropical cyclones cold fronts, evolution North American Monsoon system, passage easterly trade winds play remarkable role controlling rainfall findings provide robust baseline ecohydrological, climatic, forensic, archeological, paleoclimate studies America.

Language: Английский

Citations

2
Ecohydrological Dynamics and Temporal Water Origin in a European Mediterranean Vineyard DOI Creative Commons
Paolo Benettin, Massimo Tagliavini, Carlo Andreotti

et al.

Ecohydrology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 2, 2024

ABSTRACT Viticulture is an essential sector in agriculture as wine production plays a vital role the socio‐economic life of many countries, especially Mediterranean area. Grapevines are valuable, long‐lived species able to grow hot and dry regions. We currently do not know whether rain‐fed grapevines entirely rely on deep soil water or make substantial use shallow from summer precipitation events. Without knowing this, we poorly understand what fraction inputs contributes grapevine transpiration. This has implications for how quantify grapevine‐relevant budgets predicting impacts climate change grape production. investigated vineyard Chianti region, central Italy. During growing season 2021, monitored moisture at 30‐ 60‐cm depth. collected over 250 samples stable isotope analysis rainfall, soil, plants. Since traditional plant sampling problematic grapevines, shoots, leaves, condensed leaf transpiration after sealed plastic bags were wrapped around shoot. these alternative reconstruct isotopic signal xylem infer plant's seasonal origin throughout season. The revealed that, season, received disproportional contributions by rain that had fallen winter, even when compensating Only late did amounts whose contribution occasionally became dominant. These results provide better understanding ecohydrological interactions uptake dynamics valuable agroecosystems such vineyards.

Language: Английский

Citations

0