Библиографическое описание:Tree canopy accession strategy changes along the latitudinal gradient of temperate Northeast Asia : научное издание / P. Janda [et al.]. - Текст : непосредственный // Global Ecology and Biogeography. - 2021. - № . - ISSN 1466-822X. - ISSN 1466-8328, DOI 10.1111/geb.13259.
Аннотация:Aim: Understanding how natural forest disturbances control tree regeneration is key to predicting the consequences of globally accelerating forest diebacks on carbon stocks and forest biodiversity. Tropical cyclones (TCs) are important drivers of forest dynamics in Eastern Asia, and it is predicted that their importance will increase. However, little is known about the impact of TCs on forest regeneration. Location: Latitudinal gradient from south Korea (33° N) to the Russian Far East (45° N). Time period: Last 300 years. Major taxa studied: Quercus mongolica, Abies nephrolepis and Pinus koraiensis. Methods: We explored the effects of TC activity on canopy accession strategies derived from long-term tree radial growth patterns along a 1,500-km latitudinal gradient of decreasing TC activity. We analysed canopy accession strategies for > 800 trees of three widely distributed tree species by dividing them into gap trees (GTs), which established immediately after gap formation, and released trees (RTs), which accessed the upper canopy after a period of competitive suppression. Results: We found a substantial decrease in GTs and increase in RTs proportionally along the gradient of decreasing TC activity. Pinus koraiensis and A. nephrolepis exhibited high variability in the proportions of the individual canopy accession strategies along the latitudinal gradient, whereas it was more stable for Q. mongolica. We identified the gradient of TC activity as the main driver influencing canopy dynamics and thus changes in life-history traits for P. koraiensis and Q. mongolica, whereas maximal growth rate was the main driver for A. nephrolepis. Main conclusions: Flexibility in growth strategies enabled the studied species to cover extensive areas and indicates that they will be able to cope with shifts in disturbance regimes induced by the poleward migration of TCs and increasing TC intensity. Our results highlight the canopy accession strategy as an ecological indicator of past disturbance activity.
Держатель оригинала документа:Botanical Garden-Institute of the Far Eastern Branch of the Russian Academy of Sciences, Department of Biological Science,College of Natural Sciences,Andong National University, Department of Botany,Faculty of Science,University of South Bohemia, Faculty of Forestry and Wood Processing,Czech University of Life Sciences in Prague, Far Eastern Branch of the Russian Academy of Sciences,Federal Scientific Center of the East Asia Terrestrial Biodiversity, Institute of Botany,Czech Academy of Sciences, Siberian Federal University
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