GIS支持下的迪庆州少数民族人口分布与地形分异研究  

The Minority Population Distribution and its Differentiated Relationship With Terrain in Diqing Using GIS

作　　者：董云林 朱大明[1] 周峻松[2] 李石华[2] 郑璞冰 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]云南省基础地理信息中心,云南昆明650034

出　　处：《软件导刊》2018年第2期208-212,共5页Software Guide

摘　　要：利用云南省地理国情普查成果和区域少数民族专题资料,在GIS技术的支持下,定量分析了云南省迪庆州各少数民族人口分布与高程、坡度、坡向以及地形起伏度的关系,对迪庆州建设民族团结示范区,促进人口、经济、资源与环境协调发展具有重要意义。研究结果表明:迪庆州少数民族的分布呈现大杂居小聚居的特点,藏族人口分布北密南疏,傈僳族和其他少数民族人口分布均北疏南密;当高程超过1 900m时,各少数民族人口密度随高程增加呈下降趋势;迪庆州各少数民族人口集中分布在坡度小于25°的区域;坡向对迪庆州各少数民族人口分布影响不明显;地形起伏度对迪庆州各少数民族人口分布影响显著,各少数民族人口密度与地形起伏度的曲线拟合度较高。Diqing,the only Tibetan region in Yunnan,China,has striking similarity with what’s describe in the tale regarding on natural scenery.Based on the results of geographical census and topical information of minority,the population density map of1 km grid is obtained.Using spatial analysis and zoning statistics of ArcGIS,this paper analyzes the relationship between minority population distribution in Diqing,Yunnan province and elevation,slope,aspect and relief degree of land surface（RDLS）.This study is important for Diqing to construct national demonstration zone of unity and progress.This study has important significance for harmonious development of population,economy,resources and environment.The results show that：characteristics of minority distribution in Diqing is＂one minority lives compactly in a small community but mixedly in a large area＂.Tibetan population distribution pattern is sparse in southern and dense in northern.Population distribution pattern of Lisu and other minorities is dense in southern and sparse in northern.When the elevation exceeds 1 900 m,each minority population density shows a falling with elevation.Main population of each minority in Diqing distributes in an area with slope less than 25 degree.Aspect has no significant influence on each minority population distribution in Diqing.RDLS has a strong impact on minority population distribution.The curved fitting of each minority population density and RDLS is very high.

关 键 词：GIS 少数民族 人口分布 地形分异 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]