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为比较不同环境春秋季变螺的结果，在安徽省和县长江段的一个江心洲，选择4个独立的环境，即种植者畅的东江林区，以鱼塘、大圩和草滩为主的渔区，以意杨、杂草、芦苇为主的西江林区以及以沙土地为主、植被覆盖率较低的老洲西滩。子1995年春、秋季对这《个环境进行了查螺对比分
In order to compare the results of spring and autumn change in different environments, we selected 4 independent environments in Changjiang River in Anhui Province and Changjiang River, Area, the poplar, weeds, reeds dominated the Xijiang forest area and dominated by sandy land, vegetation coverage of Laozhou West Beach lower. In the spring of 1995, the autumn conducted a check on this “environment.”