Quantitative and Qualitative Composition of Soil Organic Matter in Samples of Ice Complex from Central Yakutia, Eastern Siberia

Table 1

Morphological description of Cryosols Haplic Cambisols Dystric soil section on the ice complex.

Horizon	Depth (cm)	Diagnostics
Оi	0–4	Forest litter from pine needles, lichens, cones, dead parts of plants
А1	4–10	Coarse humus horizon, dark brown, strongly permeated with living roots of woody and herbaceous plants, loose, moist, jagged, wavy border
А2	10–30	Pale, dense, horizontal swims of humus, the presence of thin roots, slightly moist, the transition is sharp, the boundary is uneven
Вa	30–40	Gray, dense, slightly permeated with small living roots, slightly moist, gradual transition, smooth boundary
ВСa	40–60	Gray, single presence of thin roots, gradual transition, weak effervescence from 10% HCl
Сr	60–120	Gray, rare inclusions of iron oxide, lies on the surface of permafrost