RESUMO:O objetivo do trabalho foi comparar atributos químicos dos solos de terra preta de índio com solos não antropogênicos. As coletas de solo foram realizadas no sitio arqueológico Jabuti e na área adjacente ao sítio em Bragança/PA. O solo desse sítio pertence à Ordem dos Gleissolos. As coletas foram realizadas em três áreas do sitio arqueológico (E1S1; E1S2 e área adjacente). Para esse estudo foram realizadas coletas a 5-10 cm de profundidade. Foram retiradas dez amostras simples para compor uma amostra composta. O delineamento utilizado foi inteiramente casualizado, sendo três áreas de estudo e um tipo de solo com 10 repetições, sendo que cada área de coleta dentro do sitio mede 10m. Foram calculadas as variáveis: soma de bases trocáveis, saturação por base, alumínio trocável, saturação por alumínio e CTC efetiva e CTC a pH 7,0.
CHARACTERIZATION OF CHEMICAL ATTRIBUTES OF A HORIZON ANTHROPIC IN NORTHEAST GLEYSOLS PARAENSEABSTRACT: The aim of this study was to compare the chemical properties of soils of Indian black earth soils with no anthropogenic. The soil samples were taken in Tortoise archaeological site in Bragança / PA, which has a total area of 100m x 100m. The soil of this website belongs to the Order of Gleissolos. Samples were collected in three areas of the archaeological site (E1S1; E1S2 and adjacent area). For this study were collected at 5-10 cm depth. Ten simple samples were taken to compose a composite sample. The experimental design was completely randomized, with three areas of study and a soil type with 10 repetitions, each collection area within the site measures 10m. Total exchangeable bases, base saturation, exchangeable aluminum, aluminum saturation and effective CEC and CEC at pH 7: the variables were calculated. The average values of sum of bases, base saturation were higher in areas of Dark Earth. However, the average values of m% were lower in
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.