LONG-TERM DEVELOPMENT OF DRAINED PEATLAND FORESTS IN ROSHINO, NORTH-WEST RUSSIA

摘要

Long term development of tree stands and surface vegetation in peatland forests, originally drained in 1930, is described on the basis of a repeated measurement in 1999-2000, after ca 70 years of nearly undisturbed development. In spite of no or limited ditch network maintenance at two sites in Roshino, Carelian Isthmus, Russia, tree stands still continued their development, even if signs of rewetting could be observed in the surface vegetation. It seems that the deterioration of the ditch network can partly be compensated by the transpiration and interception of the stands.