Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment
Climate change can impair ecosystem functions and services in extensive dry forests worldwide. However, attribution of climate change impacts on tree growth and forest productivity is challenging due to multiple inter-annual patterns of climatic variability associated with atmospheric and oceanic ci...
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ftunivgeneve:oai:unige.ch:aou:unige:122237 2023-10-01T03:57:52+02:00 Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment Madrigal-González, Jaime Andivia, Enrique Zavala, Miguel A. Stoffel, Markus Calatayud, Joaquín Sánchez-Salguero, Raúl Ballesteros Canovas, Juan Antonio 2018 https://archive-ouverte.unige.ch/unige:122237 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2018.06.064 https://archive-ouverte.unige.ch/unige:122237 unige:122237 info:eu-repo/semantics/restrictedAccess ISSN: 0048-9697 Science of the Total Environment, vol. 642 (2018) p. 619-628 info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Tree growth Dry forests North Atlantic Oscillation Atlantic Multidecadal Oscillation Mediterranean Oscillation Index Pinus pinaster Ait info:eu-repo/semantics/article Text Article scientifique info:eu-repo/semantics/publishedVersion 2018 ftunivgeneve https://doi.org/10.1016/j.scitotenv.2018.06.064 2023-09-07T07:51:51Z Climate change can impair ecosystem functions and services in extensive dry forests worldwide. However, attribution of climate change impacts on tree growth and forest productivity is challenging due to multiple inter-annual patterns of climatic variability associated with atmospheric and oceanic circulations. Moreover, growth responses to rising atmospheric CO2, namely carbon fertilization, as well as size ontogenetic changes can obscure the climate change signature as well. Here we apply Structural Equation Models (SEM) to investigate the relative role of climate change on tree growth in an extreme Mediterranean environment (i.e., extreme in terms of the combination of sandy-unconsolidated soils and climatic aridity). Specifically, we analyzed potential direct and indirect pathways by which different sources of climatic variability (i.e. warming and precipitation trends, the North Atlantic Oscillation, [NAO]; the Mediterranean Oscillation, [MOI]; the Atlantic Mediterranean Oscillation, [AMO]) affect aridity through their control on local climate (in terms of mean annual temperature and total annual precipitation), and subsequently tree productivity, in terms of basal area increments (BAI). Our results support the predominant role of Diameter at Breast Height (DHB) as the main growth driver. In terms of climate, NAO and AMO are the most important drivers of tree growth through their control of aridity (via effects of precipitation and temperature, respectively). Furthermore and contrary to current expectations, our findings also support a net positive role of climate warming on growth over the last 50 years and suggest that impacts of climate warming should be evaluated considering multi-annual and multi-decadal periods of local climate defined by atmospheric and oceanic circulation in the North Atlantic. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université de Genève: Archive ouverte UNIGE Science of The Total Environment 642 619 628 |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Tree growth Dry forests North Atlantic Oscillation Atlantic Multidecadal Oscillation Mediterranean Oscillation Index Pinus pinaster Ait |
spellingShingle |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Tree growth Dry forests North Atlantic Oscillation Atlantic Multidecadal Oscillation Mediterranean Oscillation Index Pinus pinaster Ait Madrigal-González, Jaime Andivia, Enrique Zavala, Miguel A. Stoffel, Markus Calatayud, Joaquín Sánchez-Salguero, Raúl Ballesteros Canovas, Juan Antonio Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
topic_facet |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Tree growth Dry forests North Atlantic Oscillation Atlantic Multidecadal Oscillation Mediterranean Oscillation Index Pinus pinaster Ait |
description |
Climate change can impair ecosystem functions and services in extensive dry forests worldwide. However, attribution of climate change impacts on tree growth and forest productivity is challenging due to multiple inter-annual patterns of climatic variability associated with atmospheric and oceanic circulations. Moreover, growth responses to rising atmospheric CO2, namely carbon fertilization, as well as size ontogenetic changes can obscure the climate change signature as well. Here we apply Structural Equation Models (SEM) to investigate the relative role of climate change on tree growth in an extreme Mediterranean environment (i.e., extreme in terms of the combination of sandy-unconsolidated soils and climatic aridity). Specifically, we analyzed potential direct and indirect pathways by which different sources of climatic variability (i.e. warming and precipitation trends, the North Atlantic Oscillation, [NAO]; the Mediterranean Oscillation, [MOI]; the Atlantic Mediterranean Oscillation, [AMO]) affect aridity through their control on local climate (in terms of mean annual temperature and total annual precipitation), and subsequently tree productivity, in terms of basal area increments (BAI). Our results support the predominant role of Diameter at Breast Height (DHB) as the main growth driver. In terms of climate, NAO and AMO are the most important drivers of tree growth through their control of aridity (via effects of precipitation and temperature, respectively). Furthermore and contrary to current expectations, our findings also support a net positive role of climate warming on growth over the last 50 years and suggest that impacts of climate warming should be evaluated considering multi-annual and multi-decadal periods of local climate defined by atmospheric and oceanic circulation in the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Madrigal-González, Jaime Andivia, Enrique Zavala, Miguel A. Stoffel, Markus Calatayud, Joaquín Sánchez-Salguero, Raúl Ballesteros Canovas, Juan Antonio |
author_facet |
Madrigal-González, Jaime Andivia, Enrique Zavala, Miguel A. Stoffel, Markus Calatayud, Joaquín Sánchez-Salguero, Raúl Ballesteros Canovas, Juan Antonio |
author_sort |
Madrigal-González, Jaime |
title |
Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
title_short |
Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
title_full |
Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
title_fullStr |
Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
title_full_unstemmed |
Disentangling the relative role of climate change on tree growth in an extreme Mediterranean environment |
title_sort |
disentangling the relative role of climate change on tree growth in an extreme mediterranean environment |
publishDate |
2018 |
url |
https://archive-ouverte.unige.ch/unige:122237 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0048-9697 Science of the Total Environment, vol. 642 (2018) p. 619-628 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2018.06.064 https://archive-ouverte.unige.ch/unige:122237 unige:122237 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2018.06.064 |
container_title |
Science of The Total Environment |
container_volume |
642 |
container_start_page |
619 |
op_container_end_page |
628 |
_version_ |
1778530016099827712 |