Climate influence on coniferous species radial growth in Moldovita River Basin

The thoroughness of knowledge concerning the relation between climate and coniferous species forest ecosystems from Romania is a very present theme among the scientific community from environmental field, nationally and internationally. This study presents an incorporated dendroclimatological analysis regarding coniferous species response to climate variation from Moldovita River Basin. A network of dendrochronological series was accomplished, composed of 4 silver fir (Abies alba) series, 3 Norway spruce (Picea abies) series, 2 Scots pine (Pinus sylvestris) series and 2 European larch (Larix decidua) series. There have been taken 480 samples of radial growth from 240 trees. All individual radial growth series were standardized using the 67% spline function. Trees reaction to climate variation was analyzed through Pearson correlation coefficients. A certain period of time, when temperature significantly influences trees radial growth, corresponds to each coniferous species. Knowing in future the way temperature fluctuates has a major importance in ecological distribution of coniferous species from Moldovita River Basin.