von Wühlisch, Georg - 2016
The most recent National Forest Inventory (Thünen Institute of Forest Ecosystems, National Forest Inventory) subdivides the areas not devoted to short rotation coppice (SRC) as follows: Aspen 81,000 ha, black poplar & hybrid varieties 38,500 ha, grey poplar 5,500 ha, white poplar 2,600 ha,...