Growth and Yield of Black Locust (Robinia pseudoacacia L.) Stands in Nyírség Growing Region (North-East Hungary)

Abstract

In Hungary the black locust (Robinia pseudoacacia L.) can be considered as the most important fast-growing stand-forming exotic tree species. Due to its favourite growing technological characteristics as well as its wood utilization possibilities the present area occupied by black locust stands amounts to 460 thousand hectares. Of its growing districts Nyrsg (North-East Hungary) has a distinguished importance where the area of black locust stands is appr. 22 700 hectares. The Nyrsg region can also be considered as one of the best black locust growing regions in the Carpathian basin. To determine their growth rate and yield as exact as possible a local numerical yield table has been constructed on the basis of surveys of the experimental plots established in pure, managed black locust stands.