| 大湄公河次区域宏观地貌形态类型划分研究 |
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| 引用本文： | 赵晋陵.大湄公河次区域宏观地貌形态类型划分研究[J].测绘科学,2013,38(2). |
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| 作者姓名： | 赵晋陵 |
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| 作者单位： | 北京市农林科学院北京农业信息技术研究中心,北京100097;中国科学院遥感应用研究所,北京100101 |
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| 基金项目： | 国家自然科学基金资助项目，中国博士后科学基金面上项目 |
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| 摘 要： | 本文基于ArcMap数据处理和分析平台,以90m分辨率的SRTM-4 DEM为数据源,对大湄公河次区域GMS的宏观地貌形态类型进行定性和定量分析。参考坡度分类标准和《1∶400万中国及其毗邻地区地貌图》地貌形态类型划分的海拔高度和地势起伏度标准,结合GMS东南亚5国和中国2省的特殊地貌形态,采用海拔高度和地势起伏度组合的阈值划分方法,生成包含7种地貌形态类型的分类图。结果显示:海拔1900m以下的地貌类型所占比例最大;GMS以山地地貌为主。
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| 关 键 词： | 大湄公河次区域 宏观地貌形态 类型划分 DEM 地势起伏度 |
A study on classifying macro-scale geomorphologic form types of Greater Mekong Subregion |
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| Abstract: | Based on the data processing and analysis platform of ArcMap,quantifying and quantifying the macro-scale geomorphologic form types were performed using SRTM-4 DEM with 90m resolution in the paper.According to the classification standard of slope levels and 1∶ 400 000 000 Geomorphologic Map of China and Its Adjacent Regions,combining with specific geomorphologic features of five countries and two provinces of China,macro-scale geomorphologic form types including highest mountain,high mountain,high mid-mountain,low mid-mountain,low mountain,hill and plains were classified by integrating altimeter with relief amplitude.The analysis result showed that those types with altitudes lower than 1 900m account for 91.67%,and GMS is dominated by mountain geomorphologic types. |
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| Keywords: | Greater Mekong Subregion(GMS) macro-scale morphologic form type classification DEM relief amplitude |
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