江汉平原湖泊的成因类型及其特征

对江汉平原湖泊的成因进行了探讨和分类，并描述了各类湖泊的特征，江汉平原是一典型的洪泛平源，江汉湖群大多是长江，汉江及其支流演化过程中的伴生湖泊，是长江，汉江的侵蚀与堆积地貌的有机组成部分，江汉湖群在成因上可划分为6种类型，即河间洼地湖，岗边湖，壅塞湖，河谷沉溺湖，牛轭湖，河堤决口湖，由于它们是在共同的自然地理背景下形成的，所受内外营务相似，因而有着许多共同的特征，如湖水浓度一般不超过8m，湖底平坦，湖底淤泥深厚，有机质含量高等。

The origin types and their characteristics of the lakes in Jianghan Plain

The paper has discussed the origin and classification of the lakes in Jianghan Plain and described the characteristics of each type of the lakes. It shows that the lakes are all concomitant of the revolution of Yangtze River, Han River and their branches, in other word, it is one impartible part of the eroded and deposited geomorphic formed by Yangtze River and Han River. The lakes can be divided into six types: interfluvial depression lakes; hill side lakes; piled up lakes; sink river valley lakes; yoke lakes; bank burst lakes. Since they were formed in the same physic geography background and affected by the similar inner and outer agencies, they have many common characteristics. For example, lake water is not deeper than 8 m; lake bottom is quite flat; bank line is unstable; lake sediment is quite thick and abundant of organic material.