Snow cover is one of the important indicators of changes in weather and climate indicators that have a huge impact on the forests of Russia. The article analyzes changes in the average annual depth of snow cover in the period from 1966 to 2018. We used data from 23 meteorological stations located in 20 modal regions of Russia, reflecting the diversity of forest growth conditions in the country. For ease of analysis the indicators were grouped by decade (1966-1970, 1971-1980, 1981-1990, 1991-2000, 2001-2010, 2011-2018), for the main 30-year periods (1966-1990, 1991-2018) and for the last two five-year periods (2009-2013, 2014-2018). The results of the analysis show that the current trend of increasing the average annual snow depth on the territory of Russia, when compared with the base period of 1966-1990 manifests itself in the absolute majority of observation points. Only in two points – on the coast of the Baltic (26063 Saint Petersburg) and White (22550 Arkhangelsk) sea, it is not so pronounced. The nature of the dynamics of the average annual snow depth has zonal features and similarities within the forest zones of Russia.

积雪是天气和气候指标变化的重要指标之一，对俄罗斯的森林产生巨大影响。文章分析了 1966 年至 2018 年期间年平均积雪深度的变化。我们使用了位于俄罗斯 20 个模态区域的 23 个气象站的数据，反映了该国森林生长条件的多样性。为便于分析，指标按十年分组（1966-1970、1971-1980、1981-1990、1991-2000、2001-2010、2011-2018），主要的 30 年期间（1966-1990、1991- 2018 年）和最近两个五年期（2009-2013 年、2014-2018 年）。分析结果表明，目前俄罗斯境内年平均积雪深度增加的趋势，与 1966-1990 年基期相比，观测点占绝对多数。仅在两点 - 在波罗的海（26063 圣彼得堡）和白海（22550 阿尔汉格尔斯克）海岸，它并不那么明显。年平均积雪深度动态的性质在俄罗斯森林区内具有区域特征和相似性。