Above- and belowground phytomass and carbon storage in a Belgian Scots pine stand Ivan A. Janssens, David A. Sampson, Jan Cermak, Linda Meiresonne, Francesca Riguzzi, Stijn Overloop and Reinhart Ceulemans Ann. For. Sci., 56 2 (1999) 81-90 DOI: 10.1051/forest:19990201