THE VARIABILITY OF BIOMETRIC MEASURMENTS USED TO DETERMINE THE STAND ADAPTATION OF FRAXINUS EXCELSIOR TREES AFTER AFFORESTATION OF DEGRADED LAND BY EROSION

Abstract

The aim of the research is to establish the improvement degree of the degraded ecotop through differences registered between expected relative class of production and biometric data determined in situ. The biometric measurements (trees height and diameter) were done on trees being over 30 years old, the afforestation of degraded land started in 1983. The results characterize the increasing gradient of variability factors through exploitation and inappropriate management. The research problem looks to establish the effect of stand conditions upon biomass accumulation at individual level of trees, knowing that on degraded lands trees could rich a biological potential included in maximum the 4th relative class of production.