The Shannon-Wiener index in Phragmites australis community surveyed by plant-harvesting method was highest in Autumn and lowest in Summer.

• 通过植株收割法所得芦苇群落中昆虫群落的Shannon-Wiener多样性指数在秋季最高，夏季最低，而互花米草的在春季最高，秋季最低；