Influence of climate on seasonal patterns of stem increment of balsam fir in a boreal forest of Québec, Canada

Intra-Annual Xylem Growth of Larix principis-rupprechtii at Its Upper and Lower Distribution Limits on the Luyashan Mountain in North-Central China

“…The same trend of large variability in the timing of ending was also observed in some other reports studying growth along montane altitude transects [13,20,50]. Based on previous studies, the cessation of xylem growth may be triggered not only by the photoperiod and/or air temperature, but is also probably regulated by tree social status [32], resource availability [51], or other internal physiological mechanisms [52]. Considering from the cause and correlation of xylem cell phenology, some studies demonstrated that the delayed cessation of wood formation could contribute to a greater amount of xylem cell, which was required more time for cell differentiation [53][54][55].…”

Drought legacies are dependent on water table depth, wood anatomy and drought timing across the eastern US

“…4). This observation is intuitive as an early season drought affects trees at their peak of biomass accumulation ( Cufar et al 2008;Duchesne et al 2012;Delpierre et al 2016;D'Orangeville et al 2018), creating large drought effects apparent in ring width. In contrast, late season droughts likely do not give trees adequate time to recover lost foliage, rebuild C stores, or repair embolism before senescence, affecting their ability to leaf out and grow in the following spring (Br eda et al 2006).…”

Diverse growth trends and climate responses across Eurasia’s boreal forest

“…Tree growth within the boreal forest, which is often characterized by low temperatures from autumn to spring, is hence mainly constrained by rather short vegetation periods between early-June and late-August (Shiyatov 1986, Seo et al 2011, Bryukhanova et al 2013, Jyske et al 2014. During the limited number of warm summer days, small variations in temperature means and/or extremes can already trigger substantial fluctuations in tree-ring width (TRW) , Duchesne et al 2012, and more general in the production rate of entire forest ecosystems (Babst et al 2013, Kauppi et al 2014. Growing season lengths within Eurasia's boreal forest are known to vary by latitude and continentality from relatively long intervals including influences of May and September in the southwest (Linderholm 2001, Zhang et al 2016, such as Scandinavia, to extremely short vegetation periods starting not before July and often already ending in August in the northern coastal areas of eastern Siberia Naurzbaev 2002, Piao et al 2007), for instance.…”