| 基于GIS的三江并流区泥石流危险性评价 |
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| 引用本文： | 王欢,丁明涛,陈廷方.基于GIS的三江并流区泥石流危险性评价[J].水土保持通报,2011,31(5):167-170. |
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| 作者姓名： | 王欢 丁明涛 陈廷方 |
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| 作者单位： | 西南科技大学环境与资源学院,四川绵阳,621010 |
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| 基金项目： | 国家科技基础性工作专项项目“澜沧江中下游与大香格里拉地区综合科学考察”(2008FY110300-06-1); 国家科技支撑计划项目“重大滑坡、泥石流灾害综合风险评估技术”(2008BAK50B04) |
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| 摘 要： | 三江并流区位于怒江、澜沧江、金沙江三江并流地带,是中国泥石流灾害频发地区。在分析泥石流灾害特征的基础上,选取坡度、岩性、断裂、植被和人类工程活动作为三江并流区泥石流危险性评价指标。基于ArcGIS平台建立了泥石流危险性评价数据库、图形数据库和属性数据库,通过对各评价因子归一、分级和赋权处理,建立了泥石流危险性评价模型,对三江并流区泥石流危险性进行了评价,得到危险性区划图。研究结果与实际灾情吻合,可为确定减灾目标,优化防灾措施,制定减灾决策等提供重要依据。
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| 关 键 词： | 泥石流 危险性评价 GIS 三江并流区 |
| 收稿时间： | 2010/12/4 0:00:00 |
| 修稿时间： | 2011/1/12 0:00:00 |
GIS-based Risk Assessment of Debris Flows in Three-Parallel-River Are |
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| Wang Huan,Ding Ming-tao and Chen Ting-fang.GIS-based Risk Assessment of Debris Flows in Three-Parallel-River Are[J].Bulletin of Soil and Water Conservation,2011,31(5):167-170. |
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| Authors: | Wang Huan Ding Ming-tao and Chen Ting-fang |
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| Institution: | WANG Huan,DING Ming-tao,CHEN Ting-fang(School of Environment and Resources,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China) |
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| Abstract: | The three-parallel-river area is referred to as the parallel drainage basins of Nujiang,Lancang and Jinsha rivers,where debris flows occur frequently.Based on analyzing the characteristics of debris flow disasters occurred in this area,five indexes including slope,lithology,fracture,vegetation and human activity,were chosen as the evaluation indices of debris flow hazards.Supported by ArcGIS,databases of debris flow hazard assessment,graphics and attribute tables were established.The study developed models ... |
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| Keywords: | debris flow hazard assessment GIS three-parallel-river area |
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