松嫩平原湖泊的分类与分区

松嫩湖泊群的湖泊具有面积小，湖盆浅，密度大，类型多的特点。根据“成因－水量－水质”三要素的综合分类方案，运用三要素的三个主导指标和三个辅助指标，简明地将松湖泊进行了分类。根据湖泊群的区域环境及湖泊主导类型与类型结合的区域差异，将松嫩湖泊群划分为６个亚区。

CLASSIFICATION AND REGIONALIZATION OF LAKES IN THE SONGNEN PLAIN

Lake groups in the Songnen Plain are low plain lake groups, which are located in the temperate semihumid area in China. They are characterized by small area, shallow basin, thick density and various types.In the try for classifying comprehensively the lake groups, a classification system is developed based on three main factors, i. e. forming cause, water quantity and water quality. The most internal character can be concisely grasped through three principal indexes and three auxiliary indexes of the three main factors. A simple or complicated changeable path is put forward for further analyzing and outlining these basic types, in the meantime, it's linking up easily with the classification system of the single factor.According to the regional environment, the regional differences of the type composition and the principal types, the lake groups in the Songnen Plain can be divided into 6 sub-regions.