ZOU Jiaqi,QUAN Hechun*.Analysis of flood disaster risk of Tumen RiverBasin based on GIS[J].Journal of Yanbian University,2019,45(04):370-374.
基于GIS的图们江流域洪水灾害危险性分析
- Title:
- Analysis of flood disaster risk of Tumen River Basin based on GIS
- 文章编号:
- 1004-4353(2019)04-0370-05
- 分类号:
- S422
- 文献标志码:
- A
- 摘要:
- 为了研究延边朝鲜族自治州内图们江流域洪水灾害的危险性,基于GIS平台,以延边州境内图们江流域所在的7个县市为研究对象,采用层次分析法和GIS空间分析方法,通过选取与洪灾危险性相关较大的5个因子(地形、降雨、河流、土壤类型和水库分布),建立了洪水灾害危险性评价模型; 根据模型,将图们江流域洪水灾害危险性划分为5个等级,并得到了该研究区的危险等级分布图.结果表明:研究区内容易受洪水灾害的分布范围较广,其中汪清县东北部及和龙市南部地区灾害危险性最低; 安图县东部、龙井市北部和图们市危险性最高,其中安图县二道白河水系和图们市图们江水系两岸附近最为危险.
- Abstract:
- In order to study the risk of flood disaster in the Tumen River Basin of Yanbian Korea Autonomous Prefecture, based on the GIS platform, taking 7 counties and cities where the Tumen River Basin is located in Yanbian Prefecture as the research object, using the analytic hierarchy process and GIS spatial analysis method, by selecting 5 factors(topography, rainfall, river, soil type and reservoir distribution)that are more related to the risk of flood disaster, the flood disaster is established. According to the model, the flood risk of Tumen River Basin is divided into five levels, and the risk distribution map of the study area is obtained. The results show that the distribution of flood disaster in the study area is wide, among which the northeast of Wangqing County and the south of Helong City are the lowest; the east of Antu County, the north of Longjing City and Tumen City are the highest, among which the Erdaobai River System in Antu County and the two banks of Tumen River System in Tumen City are the most dangerous.
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备注/Memo
收稿日期: 2019-09-22基金项目: 吉林省教育厅“十三五”科学技术研究项目(JJKH20191123KJ)
*通信作者: 权赫春(1979—),男,博士,副教授,研究方向为防灾减灾、GIS &RS应用.