基于适宜性评价的小流域人居环境生态发展模式研究

The Ecological Development Mode of Human Settlements in Small Basin Based on Suitability Evaluation

根据地形地貌和人居环境分布特点,将小流域人居环境分为三种基本类型:台塬型、丘陵型和丘塬型。通过对三种基本类型小流域人居环境实地调查和分析,建立了流域人居环境适宜性评价体系和模型,确定了小流域人居环境适宜性指数,并分析了三种类型的小流域人居环境适宜性等级及空间分布特征;在此基础上结合小流域人居环境村镇分布特点和规律,提出了丘陵型、台塬型和丘塬型小流域人居环境生态发展模式,为小流域人居环境的规划提供样板和参照。

According to the characteristics of terrain and human settlements,we divide human settlements in small basin of loess plateau into three basic types:plateau-type,hill-type and hill-plateau-type.Based on the field survey and analysis of three basic types of human settlements in small basin,we establish a human settlements suitability evaluation systems and index models,and determine the human settlements suitability index in the small basin,then we analyze suitability level and spatial distribution characteristics of three types of human settlements in small basin.On the basis of this,combined with the characteristics and laws of distribution of human settlements and villages in small basin,we put forward the ecological development model of human settlements in plateau-type,hill-type and hill-plateautype,so as to provide a model and reference for the planning of human settlements in the small basin.