一、潮滩环境江苏海岸北起赣榆绣针河口,南至长江口北,全长了37.5公里,其中约667.5公里为粉砂淤泥质海岸。历史上长江曾在今河口以北入海,黄河多次在苏北入黄海,给江苏海岸带来大量沉积物。江苏沿岸潮差较大(2—4米),潮汐作用强。潮滩发育完善,潮滩平均宽10—13公里,最宽36公里(弶港),平均坡度仅0.2%。潮滩呈明显的分带性,自 First, the tide beach environment Jiangsu coast of Jiangxi Yu embroidered needle north of the mouth, south of the mouth of the Yangtze River estuary, a total length of 37.5 kilometers, of which about 667.5 kilometers of silt silt coast. Historically, the Yangtze River had entered the sea to the north of this estuary. The Yellow River many times entered the Yellow Sea in northern Jiangsu and brought a large amount of sediments to the coast of Jiangsu. The tidal range is relatively large (2-4 meters) along the coast of Jiangsu Province. Tidal flat developed well, the average width of 10-13 km tidal flat, the widest 36 km (Hong Kong), the average gradient of only 0.2%. Tidal flat was obvious zonation, since