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一、自然地理概况 淮河三角洲系淮河下游段(1194年被黄河袭夺)在入海河口一带的滨线锥体沉积,位于江苏东北隅,为黄、淮冲积平原的一部分;由清江市向北东沿废黄河道呈50°辐射的乌足状展布。其前缘在灌河口—射阳河口一线。地形标高由顶部的13米向东缓降至2米左右;平均坡降为万分之一,面积约7000平方公里(图1)。 三角洲地势低缓,气候温润,水系发育,
First, the natural and geographical overview Huaihe River Delta Department of the lower reaches of the Huaihe River (1194 by the Yellow River) captured in the estuary estuary along the coastline cone deposition, located in the northeast corner of Jiangsu, as part of the Yellow River and Huaihe River alluvial plain; from Qingjiang City to the north east Along the waste Yellow River was 50 ° radiation Wuzuo-shaped radiation. Its front edge in the irrigation estuary - Sheyang estuary line. Topographic elevation from the top of the 13 meters eastward slowed down to 2 meters; the average gradient is one ten thousandth, an area of about 7000 square kilometers (Figure 1). Delta low-lying, warm climate, water system development,