Тип публикации: статья из журнала
Год издания: 2024
Идентификатор DOI: 10.3103/S009639252460090X
Ключевые слова: dendroecology, tree growth, tree-ring chronology, climate change, permafrost, larch
Аннотация: Warming trends in high latitudes will lead to changes in the thermo-hydrological regime of permafrost soils, affecting the structure and functioning of northern ecosystems. The study of radial tree growth response to current environmental conditions is commonly used to understand the future reaction of trees. This study evaluates tПоказать полностьюhe response of four Cajander larch (<i>Larix cajanderi</i> Mayr) sites in the continuous permafrost region to different environmental conditions in northern and central Yakutia (Republic of Sakha). Correlation coefficients between tree-ring width indexes and climate parameters were calculated over the 1966–2021 period. The results showed that air temperature is the main factor limiting the radial tree growth in all the sites (mainly June temperature; <i>r</i> = 0.38–0.41; <i>p</i> < 0.01). However, the timing and intensity of the temperature sensitivity increases with the latitude. The most sensitive to climate woody plants grow in the northern part of the study region, where growing season is rather short. Running correlations showed a general decreasing trend in intensity of the temperature response in radial growth chronologies. It is probably linked to the increase in summer temperatures in recent decades, thus highlighting the ecological plasticity of the larch trees. These results can help to assess changes in the productivity of the forest ecosystems in particular regions of boreal zone.
Журнал: Moscow University Biological Sciences Bulletin
Выпуск журнала: Т. 79, № 2
Номера страниц: 94-100
ISSN журнала: 00963925
Место издания: Москва
Издатель: Московский государственный университет им. М.В. Ломоносова