在仪征市新城镇长江中东滩和十二圩沙河滩进行“兴林灭螺”试验初步结果表明 :在植树当年 ,因机耕将钉螺翻入土中未有发现钉螺。在植树后 ,于洪水到来之前进行林地间种 ,或 2～ 3a耕翻 1次 ,钉螺密度回升较慢 ;若无法间作 ,采用药物防治 ,亦可控制钉螺密度回升。但纯林 ,又不加任何管理 ,则效果较差 Preliminary results of “Xinglin snails” experiment conducted in the middle east beach of Changjiang River in the new town of Yizheng and at Xinshahe Beach of Twelve Weeds showed that in the year of tree planting, snail was not found because of turning the snail into the soil by machine. After tree planting, species of woodlands were planted before the flooding, or the soil was tweaked twice a day for 2 ~ 3 years. The density of snails slowed down slowly. If intercropping was not possible, drug control could also control the density of snails. However, pure forest, without any management, the effect is poor