EMBRAPA FLORESTAS | Soil macrofauna communities in a long-term soil tillage experiment at Coamo in Campo Mourão, Paraná, Brazil

The soil macrofauna community was assessed in a long-term soil tillage systems experiment established in 1991 at the Coamo Agroindustrial Cooperativa experimental farm in Campo Mourão, Paraná state, Brazil. The experiment includes three soil tillage systems (no-tillage, conventional tillage and minimum tillage) planted with two crop rotation systems: soybean-wheat continuous double cropping and a more complex rotation (including maize, wheat, oats, soybean and lupine). However, only four treatments were evaluated: no-tillage with complex rotation; no-tillage with double cropping; conventional (disk) tillage with double cropping, minimum tillage (chisel plowing every 3 years) with double cropping. Four samples were taken per treatment in April 2004, using the standard methodology of the Tropical Soil Biology and Fertility Programme (TSBF). Monoliths were hand-sorted for all litter and soil-dwelling taxa (down to 30 cm depth), and the abundance of a total of 42 taxa assessed.

自1991年起，在巴西巴拉那州卡莫乌阿罗的科阿莫农业工业合作社试验农场，对长期土壤耕作系统实验中的土壤宏观动物群落进行了评估。该实验涵盖了三种土壤耕作系统（免耕、传统耕作和最小耕作），并采用两种轮作系统种植：大豆-小麦连作双季和一种更为复杂的轮作（包括玉米、小麦、燕麦、大豆和豌豆）。然而，仅对四种处理进行了评估：免耕与复杂轮作相结合；免耕与双季作相结合；传统（圆盘）耕作与双季作相结合，以及最小耕作（每三年一次的锄耕）与双季作相结合。2004年4月，每项处理采集了四个样本，采用了热带土壤生物与肥力计划（TSBF）的标准方法。对所有凋落物和土壤栖息物种（至30厘米深度）进行了人工分拣，并对总计42个物种的丰度进行了评估。