Progress and challenges in using stable isotopes to trace plant carbon and water relations across scales
Christiane Werner,Hans Schnyder,Matthias Cuntz,Claudia Keitel,Matthias Zeeman,Todd E. Dawson,Franz-W. Badeck,Enrico Brugnoli,Jaleh Ghashghaie,Thorsten E. E. Grams,Zachary Kayler,Michael Lakatos,Xuhui Lee,Cristina Máguas,Jérôme Ogée,Katherine G. Rascher,Rolf T. W. Siegwolf,Stephan Unger,Jeffrey M. Welker,Lisa Wingate,Arthur Gessler +20 more
TLDR
In this article, the authors highlight specific areas of recent progress and new research challenges in plant carbon and water relations, using selected examples covering scales from the leaf to the regional scale.Abstract:
. Stable isotope analysis is a powerful tool for assessing plant carbon and water relations and their impact on biogeochemical processes at different scales. Our process-based understanding of stable isotope signals, as well as technological developments, has progressed significantly, opening new frontiers in ecological and interdisciplinary research. This has promoted the broad utilisation of carbon, oxygen and hydrogen isotope applications to gain insight into plant carbon and water cycling and their interaction with the atmosphere and pedosphere. Here, we highlight specific areas of recent progress and new research challenges in plant carbon and water relations, using selected examples covering scales from the leaf to the regional scale. Further, we discuss strengths and limitations of recent technological developments and approaches and highlight new opportunities arising from unprecedented temporal and spatial resolution of stable isotope measurements.read more
Citations
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Linking plant and ecosystem functional biogeography
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Oxygen isotope fractionation effects in soil water via interaction with cations (Mg, Ca, K, Na) adsorbed to phyllosilicate clay minerals
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TL;DR: In this article, the isotope effects caused by high cation exchange capacity (CEC) clays in mineral-water systems were investigated by creating a series of monominerallic-water mixtures at gravimetric water contents.
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Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale
Wouter Peters,Wouter Peters,Ivar R. van der Velde,Ivar R. van der Velde,Erik van Schaik,John B. Miller,Philippe Ciais,Henrique F. Duarte,Ingrid T. van der Laan-Luijkx,Michiel K. van der Molen,Marko Scholze,Kevin Schaefer,Pier Luigi Vidale,Anne Verhoef,David Wårlind,Dan Zhu,Pieter Tans,Bruce H. Vaughn,James W. C. White +18 more
TL;DR: The 13C/12C stable isotope ratio in atmospheric CO2 is analysed to provide new observational evidence of the impact of droughts on the WUE across areas of millions of square kilometres and spanning one decade of recent climate variability, suggesting that current climate models may underestimate carbon–drought feedbacks.
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Ideas and perspectives: Tracing terrestrial ecosystem water fluxes using hydrogen and oxygen stable isotopes – challenges and opportunities from an interdisciplinary perspective
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TL;DR: In this article, the authors summarize and build upon discussions that emerged during the workshop "Isotope-based studies of water partitioning and plant-soil interactions in forested and agricultural environments" held in San Casciano in Val di Pesa, Italy, in September 2017.
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Tracing the flow of carbon dioxide and water vapor between the biosphere and atmosphere A review of optical isotope techniques and their application
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References
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FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
Dennis D. Baldocchi,Eva Falge,Lianhong Gu,Richard J. Olson,David Y. Hollinger,Steven W. Running,P. M. Anthoni,Ch. Bernhofer,Kenneth J. Davis,Robert G. Evans,Jose D. Fuentes,Allen H. Goldstein,Gabriel G. Katul,Beverly E. Law,Xuhui Lee,Yadvinder Malhi,Tilden P. Meyers,William Munger,Walter C. Oechel,Kim Pilegaard,Hans Peter Schmid,Riccardo Valentini,Shashi B. Verma,Timo Vesala,Kell B. Wilson,S. C. Wofsy +25 more
TL;DR: The FLUXNET project as mentioned in this paper is a global network of micrometeorological flux measurement sites that measure the exchanges of carbon dioxide, water vapor, and energy between the biosphere and atmosphere.
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
Dennis D. Baldocchi,Eva Falge,Lianhong Gu,Richard J. Olson,David Y. Hollinger,Steven W. Running,P. M. Anthoni,Christian Bernhofer,Kenneth J. Davis,Robert G. Evans +9 more