Zależność grubości ściółki od wieku drzewostanów sosnowych rosnących na glebach porolnych i leśnych

摘要

Forest bed layer developing in a tree stand plays a very important part in functioning of forest ecosystem and is of key importance in soil carbon accumulation. In two different study objects (Niedzwiady and Tuczno), 351 forest bed thickness measurements were taken in 117 pine stands of different age classes, separating them into those growing on forest lands (28 tree stands - 84 measurements) and those on post--agricultural ones (89 tree stands - 27 measurements). The above relationships were analysed, what showed a relation between the thickness of forest bed and the age of tree stand. Forest bed thickness increases together with tree stand age, both on forest and post-agricultural soils.