the tree species black locust. Due to its low demand for water
and nutrients, this tree species can be highly productive even
in the most sensitive of areas such as former mining sites. The
aboveground biomass of black locust in the experiment
described here was harvested 9 years after planting. Since
some of the experimental plots were already harvested 3 years
before, the above ground biomass was 3 and 9 year olds
respectively, whereas the roots were 9 years old for all the