Cargando…

Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes

Various studies report substantial increases in intrinsic water-use efficiency (W (i)), estimated using carbon isotopes in tree rings, suggesting trees are gaining increasingly more carbon per unit water lost due to increases in atmospheric CO(2). Usually, reconstructions do not, however, correct fo...

Descripción completa

Detalles Bibliográficos
Autores principales: Brienen, R. J. W., Gloor, E., Clerici, S., Newton, R., Arppe, L., Boom, A., Bottrell, S., Callaghan, M., Heaton, T., Helama, S., Helle, G., Leng, M. J., Mielikäinen, K., Oinonen, M., Timonen, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561090/
https://www.ncbi.nlm.nih.gov/pubmed/28819277
http://dx.doi.org/10.1038/s41467-017-00225-z
_version_ 1783257772192694272
author Brienen, R. J. W.
Gloor, E.
Clerici, S.
Newton, R.
Arppe, L.
Boom, A.
Bottrell, S.
Callaghan, M.
Heaton, T.
Helama, S.
Helle, G.
Leng, M. J.
Mielikäinen, K.
Oinonen, M.
Timonen, M.
author_facet Brienen, R. J. W.
Gloor, E.
Clerici, S.
Newton, R.
Arppe, L.
Boom, A.
Bottrell, S.
Callaghan, M.
Heaton, T.
Helama, S.
Helle, G.
Leng, M. J.
Mielikäinen, K.
Oinonen, M.
Timonen, M.
author_sort Brienen, R. J. W.
collection PubMed
description Various studies report substantial increases in intrinsic water-use efficiency (W (i)), estimated using carbon isotopes in tree rings, suggesting trees are gaining increasingly more carbon per unit water lost due to increases in atmospheric CO(2). Usually, reconstructions do not, however, correct for the effect of intrinsic developmental changes in W (i) as trees grow larger. Here we show, by comparing W (i) across varying tree sizes at one CO(2) level, that ignoring such developmental effects can severely affect inferences of trees’ W (i). W (i) doubled or even tripled over a trees’ lifespan in three broadleaf species due to changes in tree height and light availability alone, and there are also weak trends for Pine trees. Developmental trends in broadleaf species are as large as the trends previously assigned to CO(2) and climate. Credible future tree ring isotope studies require explicit accounting for species-specific developmental effects before CO(2) and climate effects are inferred.
format Online
Article
Text
id pubmed-5561090
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-55610902017-08-28 Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes Brienen, R. J. W. Gloor, E. Clerici, S. Newton, R. Arppe, L. Boom, A. Bottrell, S. Callaghan, M. Heaton, T. Helama, S. Helle, G. Leng, M. J. Mielikäinen, K. Oinonen, M. Timonen, M. Nat Commun Article Various studies report substantial increases in intrinsic water-use efficiency (W (i)), estimated using carbon isotopes in tree rings, suggesting trees are gaining increasingly more carbon per unit water lost due to increases in atmospheric CO(2). Usually, reconstructions do not, however, correct for the effect of intrinsic developmental changes in W (i) as trees grow larger. Here we show, by comparing W (i) across varying tree sizes at one CO(2) level, that ignoring such developmental effects can severely affect inferences of trees’ W (i). W (i) doubled or even tripled over a trees’ lifespan in three broadleaf species due to changes in tree height and light availability alone, and there are also weak trends for Pine trees. Developmental trends in broadleaf species are as large as the trends previously assigned to CO(2) and climate. Credible future tree ring isotope studies require explicit accounting for species-specific developmental effects before CO(2) and climate effects are inferred. Nature Publishing Group UK 2017-08-18 /pmc/articles/PMC5561090/ /pubmed/28819277 http://dx.doi.org/10.1038/s41467-017-00225-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Brienen, R. J. W.
Gloor, E.
Clerici, S.
Newton, R.
Arppe, L.
Boom, A.
Bottrell, S.
Callaghan, M.
Heaton, T.
Helama, S.
Helle, G.
Leng, M. J.
Mielikäinen, K.
Oinonen, M.
Timonen, M.
Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title_full Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title_fullStr Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title_full_unstemmed Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title_short Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes
title_sort tree height strongly affects estimates of water-use efficiency responses to climate and co(2) using isotopes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561090/
https://www.ncbi.nlm.nih.gov/pubmed/28819277
http://dx.doi.org/10.1038/s41467-017-00225-z
work_keys_str_mv AT brienenrjw treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT gloore treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT clericis treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT newtonr treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT arppel treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT booma treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT bottrells treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT callaghanm treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT heatont treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT helamas treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT helleg treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT lengmj treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT mielikainenk treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT oinonenm treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes
AT timonenm treeheightstronglyaffectsestimatesofwateruseefficiencyresponsestoclimateandco2usingisotopes