Global separation of plant transpiration from groundwater and streamflow

Nature
Jaivime EvaristoJeffrey J McDonnell

Abstract

Current land surface models assume that groundwater, streamflow and plant transpiration are all sourced and mediated by the same well mixed water reservoir--the soil. However, recent work in Oregon and Mexico has shown evidence of ecohydrological separation, whereby different subsurface compartmentalized pools of water supply either plant transpiration fluxes or the combined fluxes of groundwater and streamflow. These findings have not yet been widely tested. Here we use hydrogen and oxygen isotopic data ((2)H/(1)H (δ(2)H) and (18)O/(16)O (δ(18)O)) from 47 globally distributed sites to show that ecohydrological separation is widespread across different biomes. Precipitation, stream water and groundwater from each site plot approximately along the δ(2)H/δ(18)O slope of local precipitation inputs. But soil and plant xylem waters extracted from the 47 sites all plot below the local stream water and groundwater on the meteoric water line, suggesting that plants use soil water that does not itself contribute to groundwater recharge or streamflow. Our results further show that, at 80% of the sites, the precipitation that supplies groundwater recharge and streamflow is different from the water that supplies parts of soil water recharg...Continue Reading

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Citations

Sep 4, 2015·Nature·Gabriel Bowen
Aug 26, 2016·Nature·Mathieu JavauxNicolas Brüggemann
Aug 26, 2016·Nature·J EvaristoJ J McDonnell
Nov 20, 2016·Rapid Communications in Mass Spectrometry : RCM·M GajT Himmelsbach
Mar 11, 2017·Scientific Reports·Jaivime Evaristo, Jeffrey J McDonnell
Mar 16, 2017·Physical Chemistry Chemical Physics : PCCP·Rongzheng Wan, Guosheng Shi
Apr 11, 2017·The Science of the Total Environment·Josie GerisChris Soulsby
Apr 4, 2017·Rapid Communications in Mass Spectrometry : RCM·Avner Gross, Alon Angert
Nov 14, 2018·Rapid Communications in Mass Spectrometry : RCM·Lukas ThielemannJens Dyckmans
Jan 4, 2019·The New Phytologist·Maren DubbertChristiane Werner
May 22, 2019·Isotopes in Environmental and Health Studies·Geoff Koehler
Mar 3, 2019·Tree Physiology·Bruno Barçante Ladvocat CintraRoel Brienen
Apr 25, 2019·Rapid Communications in Mass Spectrometry : RCM·Magali F NehemyJeffrey J McDonnell
Jul 8, 2020·Plant, Cell & Environment·Ulises Rodríguez-RoblesJosé Alfreso Ramos-Leal
Aug 22, 2018·Nature Communications·Nicholas R PattonMark S Seyfried
Jun 19, 2019·Nature·Jaivime Evaristo, Jeffrey J McDonnell
Oct 10, 2018·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Mauro BrumRafael S Oiveira
Jun 30, 2018·Oecologia·Gabriel J BowenStephen P Good
Sep 7, 2017·Scientific Reports·Adrià Barbeta, Josep Peñuelas
Nov 30, 2017·Hydrological Processes·Marryanna LionSiti-Aisah Shamsuddin
May 31, 2017·The New Phytologist·Ana I VargasLeonel da Silveira Lobo Sternberg
May 1, 2020·Frontiers in Plant Science·John D MarshallKathrin Kuehnhammer
Dec 16, 2020·Proceedings of the National Academy of Sciences of the United States of America·Yongle ChenXin Song
Jan 27, 2019·The Science of the Total Environment·Beibei ZhangYingbin Ma
Sep 11, 2018·Journal of Colloid and Interface Science·Navaladian SubramanianHimanshu Mishra
Apr 15, 2021·Proceedings of the National Academy of Sciences of the United States of America·Jaivime EvaristoKwok P Chun
Apr 15, 2021·Proceedings of the National Academy of Sciences of the United States of America·Xin SongYouping Zhou
Apr 21, 2021·Proceedings of the National Academy of Sciences of the United States of America·Ying Zhao
Apr 21, 2021·Proceedings of the National Academy of Sciences of the United States of America·Xin SongYouping Zhou

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