Tree diversity patterns along the latitudinal gradient in the northwestern Russia

Forest Ecosystems

Table 1 Key climatic characteristics for each of the major bioclimatic divisions represented in the study area

Landscape	Average annual temperature	Max warm month temperature	Min cold month temperature	Annual precipitation	Summer precipitation	Winter precipitation
Forest-tundra	0.1	14.6	−13.6	344	126	38
North taiga	0.2	16.2	−15.3	523	161	67
Middle taiga	3.6	20.1	−11.4	751	197	108
South taiga	3.7	20.3	−10.5	752	211	107
Hemiboreal	6.4	21.6	−7.0	788	222	116

The provided values are based on the results of temporal averaging and spatial interpolation within the landscape subdivisions of long term (1930–2010) observations from 25 meteorological stations located in the study area