人居视角地貌基本形态分类与山地聚落建设生态适宜性评价——以四川省渠县为例

Landform Classification From the Perspective of Human Settlements and the Ecological Suitability Assessment About the Construction of Mountain Settlements——A Case of Quxian County in Sichuan Province

适宜地貌是山地城乡聚落生态建设的首要条件,而当前地貌基本形态分类所沿用的区域地貌学方法,其视角为"从空中俯瞰大地",其结果不仅与人的实际感受存在较大差别,更缺乏与自然生态环境的相关性,难以有效地指导山地聚落生态建设。针对该问题,本研究基于地貌基本形态分类视角向"站在山下观山势(更符合人的实际感受)"的人居视角的转变,通过分析相对高度和坡度两大地貌基本形态分类因子与生态环境及城乡聚落建设条件的相关性,在寻找地貌基本形态分类与山地聚落建设生态适宜性评价的关系中,构建出:以相对高度为一级分类因子,以坡度为二级分类因子的地貌基本形态分类方法,有效地引导城乡聚落的选址和聚落建设用地的选择具有更强的生态适宜性。

The suitability of the landform is the primary condition of the urban and rural ecological construction for the community in mountain areas.The perspective of current landform classification method is a bird＇s eye view,and usually the result is different with the real feeling of people who live in the human settlements.And this method lacks the relevance to natural ecological environment,which cannot efficiently guide the ecological suitability assessment of the construction of mountain settlements.To address this problem,this paper proposes and tests a new method to classif y landfor ms,that the perspective is ＂bottom up＂,which is more accordant to the feeling of the obser vers.It analyzes the correlation between the classified factors such as height and slope and the condition of the urban and rural ecological construction for the community in mountain areas,discusses the relationship between the classif ication of basic landform shape and ecological suitability assessment in the construction of community in mountain areas,and finally it constructs the classification method of the basic landform shape：the relative height is the first level classification factor and the slope is the second level classification factor,which can guide the site selection of the urban and rural community in mountain areas and construction land more effectively,and provide more ecological suitability.