Land use can alter processes such as the decomposition of organic matter, nutrient cycling and
particle aggregation, thereby influencing the occurrence of macrofauna. Agroforestry systems
(SAF) are productive systems that can enhance the sustainability of agricultural production,
balancing economic, social and environmental gains and the recovery of degraded systems. The
aim of this study was to see if the different soil managements influence the edaphic macrofauna
in five areas (three areas with an agroforestry system, degraded pasture and native forest) in the
south of Amazonas. The soil was collected in the 0.00-0.10 m, 0.10-0.20 m and 0.20-0.40 m
layers, by opening trenches 10 meters apart along a predetermined transect according to the
characteristics and layout of each sampling area. The macrofauna was sampled using the
method recommended by the Tropical Soil Biology and Fertility Program (TSBF), which
consisted of collecting soil monoliths (in block form) using a metal template 0.25 x 0.25 m wide
and 0.10 m high. The abundance, richness, diversity and uniformity of the edaphic macrofauna
were analyzed, and the Shannon-Wiener Index and the Pielou Index were used to analyze the
attributes of the edaphic macrofauna. It was found that the area with natural forest had the
highest total number of individuals, the highest absolute and relative abundance, and the highest
richness compared to the other areas. The orders Hymenoptera and Isoptera were the most
abundant, accounting for 85.7% together. SAF2 and SAF 4 showed the greatest diversity,
followed by the native forest. The agroforestry system with Guaraná showed the greatest
uniformity among all the systems, as this area had the lowest richness, with twice the uniformity
when compared to the forest. The established land use and management systems reduced soil
organisms in relation to the natural forest area, showing less richness and abundance, but greater
diversity and uniformity.
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