Altered climate memory characterizes tree growth during forest dieback
نویسندگان
چکیده
Warming temperatures and droughts are driving widespread forest dieback growth decline worldwide. In forests experiencing dieback, declining trees may exhibit altered climate memory of growth, indicative physiological impairment. Thus, we evaluated climate-growth responses in four drought-disturbed dominated either by gymnosperms (Abies alba, Pinus sylvestris) or angiosperms (Fagus sylvatica, Quercus humilis) Northern Spain, where compared (heavily defoliated) non-declining (slightly not trees. To disentangle the effects past on tree applied stochastic antecedent modeling (SAM) framework to annual tree-ring widths quantify climatic memory. Declining had lower recent than conspecifics. All species responded positively precipitation temperature, independent their vigor class, except for silver fir (A. alba) European beech (F. sylvatica) individuals, which showed a negative effect warmer growth. these two were also more sensitive temperature conditions, whilst conditions further into important Silver from both classes coupled during markedly different seasons, with dry summer particularly affecting Scots pine (P. sylvetris) pubescent oak (Q. did show climate. While drought-triggered differentially impacted suffered chronic process loss vigor. Our results highlight differences sensitivity ongoing dieback.
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ژورنال
عنوان ژورنال: Agricultural and Forest Meteorology
سال: 2022
ISSN: ['1873-2240', '0168-1923']
DOI: https://doi.org/10.1016/j.agrformet.2021.108787