Biomass production in a 15-year-old poplar short-rotation coppice culture in Belgium
Faculty of Sciences. Biology
Aspects of applied biology. - Wellesbourne
, p. 99-106
University of Antwerp
Biomass production of a 15-year-old multiclonal poplar short-rotation coppice (SRC) in Flanders, Belgium, is presented in this study. A wide range of 17 clonal varieties from six different parentages were planted in 1996 and no irrigation, fertilizers or fungicides were applied after the establishment year. After 15 years or four rotations, clones from pure species displayed significantly higher yields than hybrid clones. Specifically, clone Wolterson (Populus nigra) and clones Columbia River, Fritzi Pauley and Trichobel (P. trichocarpa) proved to be good candidates for SRC in temperate regions of Northwestern Europe. During the fourth rotation, lowest biomass yields were observed for the D×T and T×D clones, despite fast juvenile growth for the latter. Trends observed in the dynamics of biomass production during earlier rotations continued in the fourth rotation though differences among clones became more pronounced after 15 years of low-input SRC. For some clones, re-sprouting from root suckers likely affected stool survival values during the fourth rotation.