云南省各州市泥石流灾害与水系分布的规律分析

Analysis on the Law of Debris Flow Disasters and Water System Distribution in Each City of Yunnan Province

云南省多山地高原地形,是我国泥石流灾害发生频率极高的省份之一。本文基于Arc GIS和线性回归的方法对云南省各州市泥石流灾害与水系分布的规律进行研究和分析。首先运用Arc GIS软件将泥石流灾害数据和云南省水系分布地图进行导入和连接,其次计算出每个泥石流灾害点与附近水系的欧氏距离,然后按照云南省行政区划在整合后的地图中提取出各州市,最后运用线性回归的方法对泥石流灾害数据进行统计。实验结果表明,泥石流灾害多发生在水系附近的区域,且水系分布密集的州市发生的更容易泥石流灾害。

The mountainous and plateau topography of Yunnan Province is one of the provinces with a high frequency of debris flow disasters in China.Based on ArcGIS and linear regression methods,this paper studies and analyzes the relationship between debris flow disasters and water systems in various cities in Yunnan Province.First,use ArcGIS software to extract maps of cities in the ad⁃ministrative map of Yunnan Province,then import and connect debris flow disaster data with river maps in Yunnan Province,and fi⁃nally use linear regression to collect statistics on debris flow disasters.Based on the analysis of the distribution of the river system,the debris flow disasters in each city of Yunnan Province were analyzed,and the distribution law of debris flow disasters in each city was obtained.