Grass and Forest Litter in the Mountain Forest-Steppe of Tuva
A. A. Titlyanova, S. V. Shibareva, A. D. Sambuu
Abstract
The transect in the mountain forest-steppe of Tuva including petrophyte steppe, meadow vegetation and forest illustrates a gradual transformation of the grass litter into the forest one. Smooth changes in the properties of plant residues and the formation of stratified profile of the litter occur in the sequence of phytocenoses from petrophyte steppe to larch forest. On the basis of the established features of the structural arrangement and stratification of the profile of litter, we assume that the grass subjacent layer, similarly to the forest subjacent layer, is the organogenic soil horizon.
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