Diversidade de invertebrados em diferentes usos do solo na floresta da Amazônia

Abstract

The objective was to evaluate the effects of different land use systems on soil quality. The study was carried out at the Confiança Experimental Field - Embrapa - RR. Eight land uses were evaluated in 50 x 50 m plots; forest, capoeira (a kind of secondary forest), managed capoeira, agroforestry without using inputs, agroforestry using inputs, altered pasture, managed pasture and a peach palm/heart palm production system. Mesofauna was obtained using a Berlese-Tullgren funnel, samples were collected with a 5 x 5 cm probe, introduced into the soil at a depth of 5 cm. The samples were sorted using the group experts key. The following were evaluated: biological characterization of the mesofauna and frequency and diversity of the Collembola group. The environments showed high diversification of mesofauna orders, with the highest frequencies in environments with greater ground cover. The use of peach palm/heart palm soil stood out, with high diversity of order and individuals, equivalent to environments with greater soil cover. Invertebrates soil diversity can be better studied and is a good indicator of soil quality.