Beschreibung:
<jats:p> Height-increment and tree-ring width data of Scots pine from northern Fennoscandia were updated and their sample replication increased considerably. Standard chronologies as well as low-frequency chronologies were built and compared during their common period in ad 745–2007. The two chronologies correlate significantly ( r = 0.58) with each other and have several extreme years in common, e.g. 1089 and 1601. The low-frequency chronologies indicate four significant periods of above-average growth and eight periods of below-average growth, which occur in both chronologies. These include the early 20th century growth surges that occurred during 1917–1955 in height increment and during 1919–1961 in ring width. In both chronologies, this latest increasing trend unequivocally turns to a fall and comes to an end by the 1960s. Tree-ring chronologies of Scots pine from northern Sweden and the Khibiny Low Mountains region (northwestern Russia) as well as from Siberia show coincidence in the decadal- to century-scale with our chronologies. </jats:p>