Large lakes and wetlands control local and regional climate conditions. Since climate controls tree-ring formation, it is expected that air-water-land interaction at Lake Baikal region (southern Siberia), the world's largest freshwater reservoir, could potentially impact tree growth in the surrounding areas. Therefore, we aimed to determine if Lake Baikal influences Pinus sylvestris L. tree-ring growth by modifying climate conditions and alleviating climate limiting factors of tree growth in its neighboring areas. Here we combine dendrochronological measurements with tree growth modeling to evaluate the variability in the climate response of Scots pine annual (tree-ring width) and intra-annual (earlywood and latewood widths) growth and phenology at four sites (two inland and two coastal sites) in the Baikal region for the 1960–2016 period. Tree growth was significantly higher, with longer growing seasons, at the inland sites than at coastal sites. However, an increasingly negative effect of summer temperature and a positive effect of relative humidity on tree-ring growth were observed with increasing distance to the lake. The results suggest that although Lake Baikal's thermal mass lessens the climate control on the tree growth by acting as a thermal and hydric buffer in the downwind coastal sites, other factors than climate might potentially control tree growth in the region. Our results also suggest that the high plasticity of P. sylvestris to thrive in different environmental conditions will probably allow a better adaptation to the projected warmer regional climate than non-drought tolerant species inhabiting the same region.

大型湖泊和湿地控制着当地和区域的气候条件。由于气候控制着树木年轮的形成，预计世界上最大的淡水水库贝加尔湖地区（西伯利亚南部）的空气-水-陆相互作用可能会影响周边地区的树木生长。因此，我们旨在确定贝加尔湖是否会影响樟子松L. 通过改变气候条件和减轻邻近地区树木生长的气候限制因素来实现树木年轮生长。在这里，我们将树木年代学测量与树木生长模型相结合，以评估四个地点（两个内陆和两个沿海地点）苏格兰松一年生（树轮宽度）和年内（早材和晚材宽度）生长和物候学的气候响应变化) 在贝加尔湖地区 1960-2016 年期间。内陆地区的树木生长明显高于沿海地区，生长季节更长。然而，随着与湖泊距离的增加，观察到夏季温度的负面影响越来越大，而相对湿度对树木年轮生长的积极影响越来越大。结果表明，虽然贝加尔湖 s 的热质量通过在下风向沿海地区充当热和氢缓冲，减轻了对树木生长的气候控制，气候以外的其他因素可能会控制该地区的树木生长。我们的结果还表明，高可塑性P. sylvestris在不同的环境条件下茁壮成长，可能比居住在同一地区的非耐旱物种更好地适应预计的温暖区域气候。