Degradation state and development tendencies of soil under intensive agricultural use

agotamiento del suelo agriculture extensive arable soils biologie du sol chemical reactions compactage du sol conservation des sols cultivated land deterioro del suelo extensive farming farmland fertilisation fertilizer application heavy metals land use metales pesados mouvement de l'eau dans le sol movimiento del agua en el suelo pesticide pesticides plaguicidas plante pour restauration du sol poland pollution du sol pologne polonia reclamation residues residuos soil biology soil chemicophysical properties soil compaction soil conservation soil deterioration soil exhaustion soil hydraulic properties soil morphological features soil organic matter soil pollution soil reclamation plants soil water movement sol arable suelos cultivables terre agricole tierras cultivadas trait morphologique du sol utilisation des terres water erosion