Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps)
Rhododendron ferrugineum L is a widespread dwarf shrub species growing in high-elevation, alpine environments of the Western European Alps. For this reason, analysis of its growth rings offers unique opportunities to push current dendrochronological networks into extreme environments and way beyond...
Published in: | Science of The Total Environment |
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00057169 2023-05-15T15:15:50+02:00 Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) Francon, L. Corona, C. Roussel, E. Lopez-Saez, J. Stoffel, M. CNRS UMR 6042 GEOLAB CLERMONT FERRAND FRA IRSTEA GRENOBLE UR EMGR FRA UNIVERSITY OF GENEVA CHE 2017 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00057169 Anglais eng http://dx.doi.org/10.1016/j.scitotenv.2017.02.083 https://irsteadoc.irstea.fr/cemoa/PUB00057169 Date de dépôt: 2018-03-01 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 50507 DENDROMETRIE RHODODENDRON CLIMAT CROISSANCE VEGETALE forest mensuration climate plant growth Article de revue scientifique à comité de lecture 2017 ftcemoa https://doi.org/10.1016/j.scitotenv.2017.02.083 2021-06-29T12:08:01Z Rhododendron ferrugineum L is a widespread dwarf shrub species growing in high-elevation, alpine environments of the Western European Alps. For this reason, analysis of its growth rings offers unique opportunities to push current dendrochronological networks into extreme environments and way beyond the treeline. Given that different species of the same genus have been successfully used in tree-ring investigations, notably in the Himalayas where Rhododendron spp. has proven to be a reliable climate proxy, this study aims at (i) evaluating the dendroclimatological potential of R. ferrugineum and at (ii) determining the major limiting climate factor driving its growth. To this end, 154 cross-sections from 36 R. ferrugineum individuals have been sampled above local treelines and at elevations from 1800 to 2100 m asl on northwest-facing slopes of the Taillefer massif (French Alps). We illustrate a 195-year-long standard chronology based on growth-ring records from 24 R. ferrugineum individuals, and document that the series is well-replicated for almost one century (1920-2015) with an Expressed Population Signal (EPS) >0.85. Analyses using partial and moving 3-months correlation functions further highlight that growth of R ferrugineum is governed by temperatures during the growing season (May-July), with increasingly higher air temperatures favoring wider rings, a phenomenon which is well known from dwarf shrubs growing in circum-arctic tundra ecosystems. Similarly, the negative effect of January-February precipitation on radial growth of R. ferrugineum, already observed in the Alps on juniper shrubs, is interpreted as a result of shortened growing seasons following snowy winters. We conclude that the strong and unequivocal signals recorded in the fairly long R. ferrugineum chronologies can indeed be used for climate-growth studies as well as for the reconstruction of climatic fluctuations in Alpine regions beyond the upper limits of present-day forests. Article in Journal/Newspaper Arctic Tundra Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Arctic Science of The Total Environment 586 1020 1031 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
DENDROMETRIE RHODODENDRON CLIMAT CROISSANCE VEGETALE forest mensuration climate plant growth |
spellingShingle |
DENDROMETRIE RHODODENDRON CLIMAT CROISSANCE VEGETALE forest mensuration climate plant growth Francon, L. Corona, C. Roussel, E. Lopez-Saez, J. Stoffel, M. Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
topic_facet |
DENDROMETRIE RHODODENDRON CLIMAT CROISSANCE VEGETALE forest mensuration climate plant growth |
description |
Rhododendron ferrugineum L is a widespread dwarf shrub species growing in high-elevation, alpine environments of the Western European Alps. For this reason, analysis of its growth rings offers unique opportunities to push current dendrochronological networks into extreme environments and way beyond the treeline. Given that different species of the same genus have been successfully used in tree-ring investigations, notably in the Himalayas where Rhododendron spp. has proven to be a reliable climate proxy, this study aims at (i) evaluating the dendroclimatological potential of R. ferrugineum and at (ii) determining the major limiting climate factor driving its growth. To this end, 154 cross-sections from 36 R. ferrugineum individuals have been sampled above local treelines and at elevations from 1800 to 2100 m asl on northwest-facing slopes of the Taillefer massif (French Alps). We illustrate a 195-year-long standard chronology based on growth-ring records from 24 R. ferrugineum individuals, and document that the series is well-replicated for almost one century (1920-2015) with an Expressed Population Signal (EPS) >0.85. Analyses using partial and moving 3-months correlation functions further highlight that growth of R ferrugineum is governed by temperatures during the growing season (May-July), with increasingly higher air temperatures favoring wider rings, a phenomenon which is well known from dwarf shrubs growing in circum-arctic tundra ecosystems. Similarly, the negative effect of January-February precipitation on radial growth of R. ferrugineum, already observed in the Alps on juniper shrubs, is interpreted as a result of shortened growing seasons following snowy winters. We conclude that the strong and unequivocal signals recorded in the fairly long R. ferrugineum chronologies can indeed be used for climate-growth studies as well as for the reconstruction of climatic fluctuations in Alpine regions beyond the upper limits of present-day forests. |
author2 |
CNRS UMR 6042 GEOLAB CLERMONT FERRAND FRA IRSTEA GRENOBLE UR EMGR FRA UNIVERSITY OF GENEVA CHE |
format |
Article in Journal/Newspaper |
author |
Francon, L. Corona, C. Roussel, E. Lopez-Saez, J. Stoffel, M. |
author_facet |
Francon, L. Corona, C. Roussel, E. Lopez-Saez, J. Stoffel, M. |
author_sort |
Francon, L. |
title |
Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
title_short |
Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
title_full |
Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
title_fullStr |
Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
title_full_unstemmed |
Warm summers and moderate winter precipitation boost Rhododendron ferrugineum L. growth in the Taillefer massif (French Alps) |
title_sort |
warm summers and moderate winter precipitation boost rhododendron ferrugineum l. growth in the taillefer massif (french alps) |
publishDate |
2017 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00057169 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
50507 |
op_relation |
http://dx.doi.org/10.1016/j.scitotenv.2017.02.083 https://irsteadoc.irstea.fr/cemoa/PUB00057169 |
op_rights |
Date de dépôt: 2018-03-01 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
op_doi |
https://doi.org/10.1016/j.scitotenv.2017.02.083 |
container_title |
Science of The Total Environment |
container_volume |
586 |
container_start_page |
1020 |
op_container_end_page |
1031 |
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1766346177455849472 |