雅砻江上游地区河岸带类型研究

Classification of Riparian Types in the Regions in the Upper Reaches of the Yalong River

本文在宏观上初步划分了雅砻江上游地区河岸带的结构,并分析了其影响因素。依据河岸带自然结构的质地和坡度,把雅砻江上游地区河岸带划分为30种类型。江心洲有无作为1级分类依据,河岸质地作为2级划分标准,缓冲坡坡度作为3级划分标准,缓冲区坡度和类型作为4级划分标准。本文还分析了地形地貌、人为干扰和植被特征等因素在河岸带类型形成中的塑造作用。

The structure of riparian areas was preliminarily classified and the influencing factors were macroscopically analyzed in this paper. According to the texture and slope of riparian nature structure, the riparian areas in the upper reaches of the Yalong River were classified as 30 types. In terms of riparian structure the standard of grade 1 was the existence or nonexistence of the islet in the middle of a river; the standard of grade 2 was the riparian texture ; the standard of grade 3 was the grade of cushion slopes ; the standard of grade 4 was the slope grade and types of buffer areas. Additionally, the factors of terrain, physiognomy, artificial disturbance and vegetation characters ware of great significance to shaping or adjusting the diversity of riparian structure.