| 不同比例尺数字高程模型在水土保持信息提取中的应用分析 |
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| 引用本文： | 赵帮元,喻权刚,马红斌,张香娟,马卫星.不同比例尺数字高程模型在水土保持信息提取中的应用分析[J].中国水土保持,2004(2):33-34. |
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| 作者姓名： | 赵帮元 喻权刚 马红斌 张香娟 马卫星 |
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| 作者单位： | 黄河水利委员会,黄河上中游管理局,陕西,西安,710021 |
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| 摘 要： | 在ARCGIS软件支持下 ,基于不同比例尺的DEM提取坡度信息 ,与土地利用类型、植被覆盖度和土壤侵蚀强度等专题信息叠置 ,提取水土保持专题信息 ,并对提取结果进行应用分析。研究结果表明 ,1∶1万比例尺的DEM可在小流域规划设计、水土流失监测、信息系统建设等工作中应用 ,1∶5万比例尺的DEM可用在重点支流、重点治理区 (片 )等尺度上的三维可视化系统建立、水土保持规划等 ,1∶2 5万比例尺的DEM只能在较大区域中进行宏观信息提取时使用。
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| 关 键 词： | 数字高程模型 水土保持 遥感 地理信息系统 |
| 文章编号： | 1000-0941(2004)02-0033-02 |
| 修稿时间： | 2003年12月15 |
Analysis on Application of Digital Elevation Model with Different Scales in Information Collection of Soil and Water Conservation |
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| ZHAO Bang-yuan,YU Quan-gang,MA Hong-bin,et al..Analysis on Application of Digital Elevation Model with Different Scales in Information Collection of Soil and Water Conservation[J].Soil and Water Conservation In China,2004(2):33-34. |
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| Authors: | ZHAO Bang-yuan YU Quan-gang MA Hong-bin |
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| Abstract: | The paper collects the information of special topic on soil and water conservation and conduct applied analysis on the collected data with the support of ARCGIS software, based on DEM collected slope information in different scales and overlapping the special information of types of land utilization, rate of vegetation coverage and intensity of soil erosion. It is shown by the results of study that 1∶10 000 scale DEM can be applied in small watershed planning and design, soil and water loss monitoring and establishment of information system. 1∶50 000 scale DEM can be used in the establishment of 3D visible system and planning of soil and water conservation of key tributaries and regions. 1∶250 000 scale DEM can be used in collecting macro information of only larger regions. |
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| Keywords: | digital elevation model soil and water conservation remote sensing GIS |
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