A Comparison of the Chronologies of Introduced versus Native Coniferous Tree Species Growing in Northwestern Poland during the Period of Global Warming

Anna Cedro () and Grzegorz Nowak
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Anna Cedro: Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16, 70-383 Szczecin, Poland
Grzegorz Nowak: Laboratory of Dendrology and Green Area Management, Department of Landscape Architecture, West Pomeranian University of Technology in Szczecin, Słowackiego 17, 71-434 Szczecin, Poland

Sustainability, 2024, vol. 16, issue 5, 1-16

Abstract: The ongoing climatic changes are causing the extinction of numerous species or their withdrawal from previously occupied areas. The environmental and economic significance of introduced species may increase. The aim of the present study was to examine the rate of growth of coniferous species growing in northwestern Poland and to analyze the tree ring width–climate relationships. Six tree species were selected for this study. Two of these species have natural occurrences in Poland: Pinus sylvestris and Larix decidua . The remaining four species were introduced from North America: Chamaecyparis lawsoniana , Thuja plicata , Pseudotsuga menziesii , and Pinus strobus . Samples were collected from 131 trees using a Pressler borer at 1.3 m above ground. Tree ring widths were measured down to 0.01 mm. Climatic data were retrieved from a weather station located 23 km from the study plot. The average tree ring width reaches the lowest value for the P. sylvestris chronology (1.62 mm/year) and for P. strobus (1.69 mm/year), and the highest value is reached for T. plicata (2.80 mm/year) and P. menziesii (2.56 mm/year). The analysis of weather conditions in the designated pointer years and the response function analysis indicate that winter and early spring air temperature is the factor responsible for the formation of wide tree rings in the following species studied: P. sylvestris , C . lawsoniana , P. menziesii , and T. plicata . For L. decidua and P. strobus , the climate–growth relationships are different: weather conditions in the previous growth year are important, and it is the weather in the late spring and summer months. Two of the investigated introduced species ( T. plicata and P. menziesii ) are characterized by very good acclimatization and are best adapted to the new habitat during the current climate changes. These tree species can constitute a basis for replacing native species, which, due to increasingly severe droughts and higher temperatures, are doing less and less well in their current habitats. Foresters wanting to conduct sustainable forest management will look for replacement species that are well adapted to new habitat conditions in order to maintain the continuity of forest cover.

Keywords: sustainable forestry; Scots pine ( Pinus sylvestris ); common larch ( Larix decidua ); Lawson cypress ( Chamaecyparis lawsoniana ); western red cedar ( Thuja plicata ); Douglas fir ( Pseudotsuga menziesii ); eastern white pine ( Pinus strobus ); dendrochronology; dendroclimatology (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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