| 基于Google Earth影像的黄河上游干流地区滑坡特征分析 |
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| 引用本文： | 何玉花,张东水,李燕婷,韩用顺,薛彬.基于Google Earth影像的黄河上游干流地区滑坡特征分析[J].测绘与空间地理信息,2017,40(7). |
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| 作者姓名： | 何玉花 张东水 李燕婷 韩用顺 薛彬 |
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| 作者单位： | 1. 湖南科技大学 地理空间信息技术国家地方联合工程实验室,湖南 湘潭,411201;2. 青海大学,青海 西宁,810000 |
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| 基金项目： | 湖南省自然科学基金项目，湖南省教育厅优秀青年基金项目，地理空间信息技术国家地方联合工程实验室开放基金项目 |
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| 摘 要： | 黄河上游干流地区由于特殊的地形地貌和地质构造使得滑坡灾害频发,对其开展滑坡灾害监测、分析研究,具有十分重要的意义。本文利用2015年间Google Earth遥感数据,提取并分析了该地区的滑坡灾害分布信息,取得了如下成果及认识:1)研究区的空间展布形态主要有7种,滑体性质类型有6种,岩质滑坡数量最多。2)从空间分布特征看,共发现研究区有各类滑坡162处,滑坡主要集中分布在群科-尖扎盆地;从滑坡类型看,研究区滑坡主要为大型滑坡和巨型滑坡。3)滑坡体长、宽主要集中在0~1 500 m和500~1 500 m之间,且长、宽呈两极化方向延伸,滑坡体面积分布不均,滑坡数量随着方量的增大呈现减少的趋势,发生的滑坡主要是滑坡体厚度在25~50 m的深层滑坡。4)滑坡数量在0°~90°之间有峰值出现,然后向两端逐渐减少。
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| 关 键 词： | 黄河上游 滑坡特征 GoogleEarth 遥感 |
Analysis of Landslide Characteristics in Main Stream Area of the Upper Reaches of the Yellow River Based on Google Earth Image |
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| HE Yu-hua,ZHANG Dong-shui,LI Yan-ting,HAN Yong-shun,XUE Bin.Analysis of Landslide Characteristics in Main Stream Area of the Upper Reaches of the Yellow River Based on Google Earth Image[J].Geomatics & Spatial Information Technology,2017,40(7). |
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| Authors: | HE Yu-hua ZHANG Dong-shui LI Yan-ting HAN Yong-shun XUE Bin |
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| Abstract: | Landslide disasters occur frequently in main stream areaof the upper reaches of the Yellow River because of the special topography and the strong geological structure.It is of great significance to carry out the research on the monitoring and analysis of landslide disaster.Based on the Google earth remote sensing data in 2015 years, Extracted and analyzed the landslide hazard distribution information of this area, and obtained the following results and understanding:(1) Spatial distribution pattern can be divided into seven categories, the properties of landslide body can be divided into six categories , the number of rock landslides is the most;(2) From the view of spatial distribution the of study area, It is founded that there are 162 landslides in all, mainly concentrated in the Qunke-Jianzha Basin, from the point of view of the type of landslide, the landslide are mainly large landslides and huge landslides;(3) the lengths and widths of landslide masses are mainly concentrated on 0 to 1 500 m and 500 to 1 500 m, They are extended directions by different polarizations.The areas of landslide body distribute uneven.Landslides number shows a decreasing trend with increasing volume.Landslides are mainly deep landslides, thickness of landslide body concentrated on 25 to 50m;(4)in the range of 0 degrees to 90 degrees,the number of the landslides appears the peak value, and then gradually decreases to the two ends. |
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| Keywords: | the upper reaches of the Yellow River landslide characteristics Google Earth remote sensing |
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