POINTER et DENDRO: Deux applications sous R pour l'analyse de la réponse des arbres au climat par approche dendroécologique

Abstract

In the wake of the discovery of climate change some twenty years ago, many studies on the response of trees to climate and its variations using a dendroecological approach (i.e., using ring width as an estimator for overall tree growth) were conducted to quantify the impact of those changes on the growth and vitality of forests. The more and more frequent use of ever-larger data sets led to longer statistical processing times for the data. This article presents two applications - POINTER and DENDRO - developed under the free R software that automate computing procedures for dendroecological analyses, offer simple interfaces for entering calculation parameters that are user-friendly and in French, and provide files and graphs by way of output with results that can be readily interpreted. By saving computing time and pre-analysing the output data, these are valuable tools are for French-speaking scientists, Masters' students and engineers. © AgroParisTech, 2013.