南京林业大学学报(自然科学版) ›› 2009, Vol. 33 ›› Issue (02): 69-.doi: 10.3969/j.jssn.1000-2006.2009.02.017

• 研究论文 • 上一篇    下一篇

一种利用地形图和遥感影像提取小班界线的方法

李卫正1,艾畅2,彭世揆1*   

  1. 1.南京林业大学森林资源与环境学院,江苏南京210037;2.国家林业局森林资源监督管理办公室,北京100714
  • 出版日期:2009-04-18 发布日期:2009-04-18
  • 基金资助:
    收稿日期:2008-01-05修回日期:2008-11-20基金项目:国家林业局科技攻关项目(20003270080)作者简介:李卫正(1978—),博士生。*彭世揆(通讯作者),教授,研究方向为森林资源监测。Email: nfupsk@163.com引文格式:李卫正,艾畅,彭世揆. 一种利用地形图和遥感影像提取小班界线的方法[J]. 南京林业大学学报:自然科学版,2009,33(2):69-72.

A method to extract the subcompartment boundary from contour of the relief map supported using GIS technology

LI Weizheng1, AI Chang2, PENG Shikui1*   

  1. 1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Office of Forestry Resources Supervision and Administration, State Forestry Administration, Beijing 100714, China
  • Online:2009-04-18 Published:2009-04-18

摘要: 利用地形图提供的等高线生成不同空间分辨率的数字高程模型(DEM),从中选择最佳分辨率DEM提取坡向图,并在GIS支持下对坡向图进行图像处理形成矢量多边形。对于DEM无法提取的部分区域则通过遥感影像分类后再分割的方法提取。在此基础上分析了所有矢量化结果与人工地面调查的小班线,结果表明:使用10 m左右空间分辨率DEM提取小班界线较好,经图像处理后,矢量多边形与小班线的重合率可以达到70%,进一步编辑修改后可以作为小班区划的工作底图。

Abstract: Drawing the subcompartment boundary is an important step in establishing the subcompartmentbased forest resources inventory. It not only needs great ground work, but also is expensive and low efficient. This paper proposed a new method, the using contour of the relief map to extract the slope map. In order to use the slope map, the subcompartment boundary has to be drawn. During the extracting work, DEM and image processing were used via GIS technology. The results show that 70% of the extracted polygon lines can be superposed to the investigated subcompartment boundary.

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