Fig. 3From: Site-specific growth responses to climate drivers of Pinus pinea L. tree rings in Italian coastal standsLoadings plot (a) and cluster dendrogram (b) of mean standardised site chronologies. a Axis labels report the percentage of variance explained by the first two components; each arrow corresponds to one of the analysis variables projected onto a two-dimensional plane and proportional to its component loading. b The height values on the y-axis indicate the squared Euclidean distance between variables according to the clustering algorithm, based on Ward’s methodBack to article page