INTRAPARCELLA HETEROGENEITY OF FOREST LITTER IN PINE PHYTOCENOSES

The properties of the litter significantly change with the distance fr om the tree trunk to the ''clearing'' of the parcella. Its thickness a nd weight decrease, and the share of the ''active'' fraction of litter fall increases. Conditions for more complete humification are formed. Ash content and P and K supplies increase, but supplies of N, Ca, and Mg decrease. The transect method makes it possible to account efficien tly for these peculiarities and to obtain representative data on the c omposition and features of the litter.