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Nowadays, various climate data sources offer free-access information regarding interpolated climatological data, used in forest research studies (dendroecology and dendroclimatology). The most utilised are the international data grids, for reasons of length of time series and offboard coverage. Changes in the climate extremes from the last decades are frequently monitored using global climate gridded datasets (we used CRU-TS and E-OBS). Our study evaluates their accuracy relative to the national data grid (ROCADA)...

Oak stands decline has been several times reported in the scientific literature, starting with the beginning of the twenty century. A brief overview is presented regarding the occurrence of oak decline in the Romanian extra-Carpathian region since 1900 until present. Six oak species having a significant economic and ecological status are affected - Quercus robur L., Quercus petraea (Matt.) Liebl.), Quercus pedunculiflora K. Koch., Quercus frainetto Ten., Quercus cerris L., and Quercus pubescens Willd. The literatu...