通州、如皋是长江下游北岸毗连的两个市,地形地貌属河口相冲积沉积平原,土壤质地粉砂壤土,与扬州市的靖江、泰兴以及泰州、泰县、江都的南半部通称通南高砂土区。东临黄海,南滨长江,境内河网港汊密布,引江灌溉,农业生产发达,近年乡镇工业正在兴起,是苏南、苏 Tongzhou and Rugao are two cities adjoined on the north bank of the lower reaches of the Yangtze River. The topography is an alluvial sedimentary plain with estuaries and silty loam with soil texture. The Tongzhou and Taixing and the southern half of Taizhou, Taixian and Jiangdu, Soil area. East of the Yellow Sea, the southern coast of the Yangtze River, the territory of the Hong Kong Harbor densely covered, irrigation, advanced agricultural production in recent years, township industries are rising, the southern Jiangsu and the Soviet Union