Abstract:

To create a reference by which to select optimal planting patterns, and maintain sustainable development of farmland ecosystems, the hand retrieval and Tullgren dry funnel methods were used to study community composition and diversity of soil fauna in three different cropping patterns; fallow rotation cycles (FRCs), rice-vegetable rotation cycles (RVCs), and vegetable continuous cropping cycles (VCCs). A total of 526 fauna were observed within the three rotation systems, belonging to 9 different phylogenetic classes and 14 different orders. The soil fauna diversity of the VCC, RFC and RVC patterns within the 0-15 cm soil layer averaged respective 15.7%, 86.6% and 110.0% higher than the 15-30 cm soil layer. The Shannon-Wiener index (H), Pielou evenness index (E), and Simpson Dominance index (C) of RVC treatment all reflected highest diversity within the RVC rotation system, as compared to the other two rotation patterns.