Radial Growth of Cajandera Larch (Larix Cajanderi) in the Conditions of the Introduction of the Voronezh Region

Conservation and restoration of biological diversity, as one of the main forms of environmental protection activities, is impossible without studying the condition and productivity of introduced species, taking into account the influence of climatic factors. As part of the research, the features of the formation of early and late Kayander larch wood were studied, taking into account meteorological parameters. Among the main macrostructural indicators of wood, the average width of the annual layer, the proportion of early and late wood are determined. After standardization and indexing, a generalizing chronology was obtained, which has a weak autocorrelation component. It was found that in the first 10 years of plant development, the proportion of late wood is 31.3%. At the perch stage, its share increases to 41.9%. The gradual decrease in growth begins at the age of 40, when the average annual increase is 1.1 mm. It is noted that the formation of early wood is influenced by the temperatures of July (r – 0.46), August (r – 0.60) and September (r – 0.36). The formation of late wood is due to the influence of positive temperatures in May (r – 0.41), July (r – 0.47) and August (r – 0.61). In terms of precipitation, a weak link to wood growth is observed by March (r – 0.23) April (r – 0.11) precipitation.