Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: XI Всероссийская научная конференция с международным участием "Экологические функции лесных почв и биоразнообразие лесов"; Красноярск; Красноярск
Год издания: 2025
Ключевые слова: permafrost thawing, gravimetric measurement, cryolithozone
Аннотация: Permafrost thawing is potentially a crucial but poorly investigated factor that influences vegetation dynamics in the Arctic. We studied the permafrost thaw rate beyond the Polar Circle in Siberia and found a continuous negative trend in the terrestrial water content (r2 = 0.67) caused by permafrost thawing beyond the Polar Circle.Показать полностьюRunoff is maximal in West and Mid Siberia (9.7 ± 2.9 kg/m2/y) and decreases in the eastward direction with minimal values in the Chukotka Peninsula sector (−2.9 ± 3.2 kg/m2/y). The growth increment of larch trees positively correlated with meltwater runoff (0.5…0.6), whereas the correlation with soil water content was negative (−0.55…−0.85). Permafrost thawing leads to an increase in the Arctic vegetation productivity. Generally, permafrost degradation leads to improved hydrothermal conditions for trees and vegetation growth and contributes to the preservation of the Arctic as a carbon sink despite the increase in burning rate.
Номера страниц: 158-159
Место издания: Красноярск