Vertical Fractional Structure of Aboveground Phytomass of the Trees Layer of the Pine Forests in Northern Ural Foothills
The results of the vertical distribution of the aboveground phytomass in ripe and overripe pine taiga of Northern Ural foothills are presented. The study demonstrates that the distribution of separate phytomass fractions of trees in vertical profile of the trees layered can be described mathematically. The aboveground phytomass of pine forests can go up to 17–26 meters, depending on the forest type, with the major fraction of organics being the trunks wooden biomass, accumulating in layer 0–4 m above ground. The crowns layer’s thickness in pine forests of different types can reach from 15 to 26 meters, while the most of the assimilating apparatus being accumulated within the 8–24 m zone. An index of the leaves surface in different pine forests can reach from 4.9 to 5.2 ha ha–1. The vertical distribution profile depends on structure and composition of the pine forests, although its maximum in most pine forest types is located in the uppermost part of the crowns layer.