Удельная чистая первичная продукция темнохвойных пород Урала

It is revealed that the indices of forest net primary production (NPP), which characterizes photosynthesis intensity and carbon sequestration, differ significantly in terms of both forest origin and the establishment and formation of Picea plantations. Specific NPP indices, which characterize the rate of the process of matter cycling, differs significantly in terms of forest origin, but in plantations the difference of this index does not exceed 3-6%. This means that the intensity of matter cycling is related mainly to the forest age, and within the same age group it practically does not depend on site growing conditions.