京杭大运河贯穿高邮市南北，境内全长４３ｋｍ。 １９７７年～１９８２年对两岸干砌块石护坡采用混凝土灌浆和水泥砂浆勾缝灭螺（简称“灌浆勾缝”），有效地控制了螺情。现将灭螺后１６年螺情观察结果报告如下。１观察方法 每年由沿运河的乡村组织查螺员进行普查，然后市查螺 Beijing-Hangzhou Grand Canal runs through Gaoyou North-South, the territory of a total length of 43km. From 1977 to 1982, the construction of dry-embanked stone revetments on both sides of the Strait was controlled by screw-grouting with concrete grouting and cement mortar hooking (“Grouting”). Now 16 years after snail snail observation results reported below. 1 Observation Method Every year, censuses are conducted by rural organizations along the canal, and then the city snails