宁夏南部山区流域分类及其综合治理模式

Watershed Classification and It's Comprehensive Management Model on Loess Plateau Area of Southern Ningxia

以宁南山区固原市原州区、彭阳县、隆德县的48个典型小流域作为研究对象,选取小流域内沟壑密度、人均耕地、立地类型(耕地、林地、牧草地)等作为指标,对研究区48个小流域进行聚类分析分为4个类型,即:低人口密度流域类型、中高人口密度流域类型、中人口密度流域类型Ⅰ、中人口密度流域类型Ⅱ。在此分类的基础上提出了各类型区综合治理模式。

Taking 48 typical small watersheds in Loess Plateau area of South Ningxia（Yuanzhou district, Pengyang county and Longde county of Guyuan city）, that are clustered base on five affection factors which are the hilly density, per capita of cultivated farmland, cultivated farmland, forest land and grass land by SPSS soft. The results show that： the area could be sorted into four watershed types which are the low density of person watershed, high density of person watershed, mid-density of person watershed Ⅰ and mid-density of person watershed Ⅱ. And then, the different comprehensive management models for the four types of watershed are provided.