Os solos de uma Topossequencia na ilha de Algodoal/ Maiandeua, nordeste do estado do Pará, Brasil: composição química e produção de matéria orgânica

This paper shows the results of a survey in Algodoal/Mainadeua Island, Para State Coastal Zone (00° 34' 35" S, 00° 40'00" S e 47° 39'35" WGr, 47° 3125" WGr). Samples were colleted from the organic surface layer (litter), light organic matter and soil (depths 0-5 cm, 5-10 cm and 10-20 cm) along a toposequence with diversified soils and vegetation cover. There were no statistical differences between the chemical components of the fulvic acid fraction in the soils ander study.