| humus quality after eucalypt reforestations in asturias (northern spain). | the impact on soil properties of recent and ancient reforestations with eucalyptus globulus labill. has been studied in cambisols and leptosols under temperate semi-oceanic climate in asturias (northern spain). eucalypt forests showed a high potential of c accumulation in soil, mainly the ancient forest, where the organic matter concentration in the uppermost horizon (up to 415 c g x kg(-1)) was greater than in all neighbouring soil formations (climacic oak forests, up to 84 c g x kg(-1); podsol ... | 2003 | 12922075 |