Climatic signal in scots pine linear increment in boreal phytocenosis of White sea coast
Scots pine linear increment measuring were fulfilled on the “Polar Circle” natural area which is placed on the White sea Kandalaksha bay coast. The issue was focused on linear increment climatic signal detecting, so as on interstices variability evaluation in differing by humidification conditions pine habitats. The caudex internodes were an object of measuring. The detecting of increment indexes response on perennial meteorological anomalies was proceeded using correlation analysis method; increment parameters variability was evaluated by means of variance analysis. In all biotopes types significant negative correlation between increment series and monthly precipitation sums in current as well as previous vegetation seasons were revealed. Increment series variability parameters, similar in dry, humid and moderate biotopes are obtained. A conclusion about precipitation overbalance role as a limiting factor for pine stands growth irrespectively of target population vegetation conditions is drawn.