Regional trends for bud burst and flowering of woody plants in Norway as related to climate change.

International Journal of Biometeorology
Øyvind NordliO Skre

Abstract

Data series for bud burst, beginning of flowering and petal fall for 20 species of deciduous trees and conifers at four sites in different regions of southern Norway have been analysed and related to temperature series. On average, the spring phenophases occurred 7 days earlier during the period 1971-2005. The most significant linear trends were observed for the earliest phases. The trends in this period were compared with trends in other periods, the longest one starting in 1927. Those starting in cold decades and ending in 2005 were in most instances statistically significant, whereas hardly any significant trend appeared for series starting in warm decades. This fact showed that the results of trend studies are very sensitive to the choice of starting year. There were significant decadal variations in 40% of the series. The dates of occurrence of the phenophases, varying from the first days of May to the first days of June, correlated with seasonal temperature series, in most cases strongest to mean temperatures for the seasons March-May and April-May. The North Atlantic Oscillation Index (NAOI) for January and February appeared to have some predictive power for the date of occurrence of the recorded phases. The basis for th...Continue Reading

Citations

Aug 2, 2011·International Journal of Biometeorology·Frans E WielgolaskiStein Rune Karlsen
Sep 29, 2011·International Journal of Biometeorology·Yukitaka OhashiNobuko Yamamoto
Dec 19, 2009·Proceedings. Biological Sciences·Christiaan BothRuud P B Foppen
Mar 25, 2011·Proceedings. Biological Sciences·Deepa SenapathiKen Norris
Jun 12, 2012·BMC Evolutionary Biology·Jean-Paul Soularue, Antoine Kremer
Dec 22, 2015·International Journal of Biometeorology·Jarmo PoikolainenEero Kubin
Jul 19, 2011·The New Phytologist·Caroline A Polgar, Richard B Primack
Oct 4, 2015·International Journal of Biometeorology·Zdenek Hubálek
May 21, 2017·International Journal of Biometeorology·Alison Donnelly, Rong Yu
Jan 8, 2020·International Journal of Biometeorology·Song Hie JungChang Seok Lee
Aug 25, 2020·Forest Ecosystems·Johannes BreidenbachRasmus Astrup

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