The results also suggested that PPI/MI was sensitive to mowing practice, which changed the composition of functional groups of soil nematodes, especially that of free-living soil nematodes.

• 样地间PPI／MI值差异明显, 表明刈割活动在一定程度上确实改变了土壤线虫功能类群组成, 其中受影响的主要是非植物寄生线虫。