Effects of urban heavy metal pollution on organic matter decomposition in Quercus ilex L. woods

arbre forestier biologie du sol biomasa biomass biomasse chrome chromium cinc cromo degradation forest litter forest soils forest trees heavy metals hojarasca forestal italia italie italy lead metales pesados micelio mycelium plomb plomo pollution du sol quercus ilex respiration soil biology soil morphological features soil pollution suelo forestal trait morphologique du sol zinc