van der Maaten Ernst, van der Maaten-Theunissen Marieke, Smiljanic Marko, Rossi Sergio, Simard Sonia, Wilmking Martin, Deslauriers Annie, Fonti Patrick, von Arx Georg et Bouriaud Olivier. (2016). dendrometeR : analyzing the pulse of trees in R. Dendrochronologia, 40, (1), p. 12-16.
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URL officielle: http://dx.doi.org/doi:10.1016/j.dendro.2016.06.001
Résumé
Dendrometers are measurement devices proven to be useful to analyze tree water relations and growth responses in relation to environmental variability. To analyze dendrometer data, two analytical methods prevail: (1) daily approaches that calculate or extract single values per day, and (2) stem-cycle approaches that separate high-resolution dendrometer records into distinct phases of contraction, expansion and stem-radius increment. Especially the stem-cycle approach requires complex algorithms to disentangle cyclic phases. Here, we present an R package, named dendrometeR, that facilitates the analysis of dendrometer data using both analytical methods. By making the package freely available, we make a first step towards comparable and reproducible methods to analyze dendrometer data. The package contains customizable functions to prepare, verify, process and plot dendrometer series, as well as functions that facilitate the analysis of dendrometer data (i.e. daily statistics or extracted phases) in relation to environmental data. The functionality of dendrometeR is illustrated in this note.
Type de document: | Article publié dans une revue avec comité d'évaluation |
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Volume: | 40 |
Numéro: | 1 |
Pages: | p. 12-16 |
Version évaluée par les pairs: | Oui |
Date: | 2016 |
Sujets: | Sciences naturelles et génie > Sciences mathématiques > Statistiques Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes |
Département, module, service et unité de recherche: | Départements et modules > Département des sciences fondamentales |
Mots-clés: | Stem-size variation, data analysis, tree-growth monitoring, tree water status, dendrometer, radial growth |
Déposé le: | 26 janv. 2017 02:56 |
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Dernière modification: | 01 janv. 2019 05:10 |
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