Intra-annual density fluctuations (IADFs) in Pinus nigra (J. F. Arnold) at high-elevation in the central Apennines (Italy)

0524955 - ÚVGZ 2021 RIV DE eng J - Článek v odborném periodiku
Piermattei, A. - Campelo, F. - Büntgen, Ulf - Crivellaro, A. - Garbarino, M. - Urbinati, C.
Intra-annual density fluctuations (IADFs) in Pinus nigra (J. F. Arnold) at high-elevation in the central Apennines (Italy).
Trees: structure and function. Roč. 34, č. 3 (2020), s. 771-781. ISSN 0931-1890. E-ISSN 1432-2285
Institucionální podpora: RVO:86652079
Klíčová slova: Anthropogenic forest limit * European black pine * Pioneer vs planted * Standardization * Weibull and Chapman functions
Obor OECD: Forestry
Impakt faktor: 2.529, rok: 2020
Způsob publikování: Open access
https://link.springer.com/content/pdf/10.1007/s00468-020-01956-1.pdf

Although wood anatomical features can provide yearly resolved climatic information at sub-seasonal resolution, the occurrence of intra-annual density fluctuations (IADFs) might be triggered by several abiotic factors under different ecological settings. Here, we use information on cambial age and tree-ring width to standardize the frequency of IADFs in European black pines from three different mountain slopes in the central Apennines (Italy). At each site, we sampled isolated 15–30-year pioneer pines above the forest limit, as well as close-grown 40–60-year planted pines at the forest limit. Mainly restricted to the latewood of both pioneer and planted trees, the occurrence of IADFs reveals a significant positive relationship with cambial age and ring width. Although the standardized IADFs are well synchronized between the planted and pioneer pines, the frequency of IADFs in narrow rings was higher in the pioneer pines. Drought conditions in July and August are responsible for the highest IADFs frequency in planted and pioneer pines, respectively. Our study underlines the value of IADFs to obtain a more nuanced understanding of the climatic drivers of wood formation at the intra-annual scale.
Trvalý link: http://hdl.handle.net/11104/0317766