Role of Litho-Geomorphological Factors in Productivity of Ecosystems of Nothern Taiga in Archangelsk Region
Distinctions of wood phytomass stores and rates of its amount of growth in ecosystems of northern taiga in various soil-geomorphological conditions of the Arkhangelsk region are investigated. Geogenic factors can more, than in 10 times to change the productivity of forest ecosystems of northern taiga, influencing both on a growth, and on a canopy of a forest stand. The open karst with prevalence of soils on poor in nutrients Perm gypses results in occurrence of open woodlands with a store of wood phytomass about 15 t/ha. In conditions of calcareous substrata and/or not stagnant overmoistening the store of wood phytomass reaches 170-190 t/ha, while in zonal glacial landscapes ca 100 t/ha. The amount of wood growth of spruce on calcareous semihydromorphic soils is in 2 times higher than in zonal spruce forests of glacial landscapes.