Radial Growth Response of Siberian Pines to Climate Warming in the Sayan Mountains, Southern Siberia, Russian Federation

Climate warming and subsequent drought are predicted to alter local forest production carbon budgets, the sensitivity of which may be site- species-specific. Although a warmer drier climate often constrains tree growth, whether trees grown in cool, wet regions across Siberian can turn promoted remains unknown. Here, we aimed investigate historical growth tendency forests Sayan Mountain areas explore how interacts regulate their growth. We used ring-width data from pine (Pinus sibirica Du Tour) sampled three sites this area establish regional chronology calculate percentage change (%GC) over past 250 years. Bootstrapped correlation analysis between climatic factors indicates mean air temperature, though not precipitation, is more positively linked radial pines. The %GC series shows that, 1966 2006, rising temperatures May resulted significant increase radial-growth rate pines (r = 0.47, p < 0.05). Our study suggests that positive anomaly likely occur as rise Southern Siberia.