Răspunsul comparativ al fagului şi stejarului la secetă în Rezervaţia Naturală Codrii (R. Moldova) [Comparative response of beech and oak to drought in Codrii Natural Reserve (R. Moldova)]
2015
Popa Ionel | Caisîn Valeriu
Drought is main climatic risk factor in Republic of Moldova with major effects on economic and ecologic level. Regional climatic models indicate for Moldova an increase of temperature and decrease of precipitation during the summer in the future decades. We evaluated the response of beech and oak to cumulative water deficit using SPEI index at different time scales. Results of climate-growth correlations indicate a higher sensitivity of beech to drought comparing with oak. Maximum correlation for beech is observed at 18-20 month SPEI scale (0.60) and for oak at time scale of 12-18 month, but lower (0.45). Earlywood growth index of oak are low correlated with SPEI. Oak, a more tolerant drought species, is more adapted compared with beech under the forescasted climatic changes in this region.
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