测绘通报 ›› 2020, Vol. 0 ›› Issue (2): 121-125.doi: 10.13474/j.cnki.11-2246.2020.0057

• 技术交流 • 上一篇    下一篇

遥感解译与地理国情相结合的石漠化监测

李伟1, 魏曼2   

  1. 1. 自然资源部海南测绘资料信息中心, 海南 海口 570203;
    2. 自然资源部第四航测遥感院, 海南 海口 570203
  • 收稿日期:2019-09-02 修回日期:2019-12-09 出版日期:2020-02-25 发布日期:2020-03-04
  • 作者简介:李伟(1984-),男,硕士,工程师,研究方向为遥感影像及地理信息技术的应用。E-mail:241346287@qq.com

Study on monitoring rocky desertification based on the combination of remote sensing interpretation and geographical conditions

LI Wei1, WEI Man2   

  1. 1. Hainan Surveying and Mapping Information Center of the Ministry of Natural Resources, Haikou 570203, China;
    2. Fourth Aerial Survey and Remote Sensing Institute of the Ministry of Natural Resources, Haikou 570203, China
  • Received:2019-09-02 Revised:2019-12-09 Online:2020-02-25 Published:2020-03-04

摘要: 考虑到地表石漠化的复杂性,借鉴林业部门的石漠化状况与程度评定方法,充分利用地理国情地表覆盖与DEM成果,结合遥感监测技术,计算地表的基岩裸露度与植被综合盖度,以野外实地调查为佐证,获取研究区域石漠化监测评定因子,确定研究区域石漠化的状况与程度,构建一套基于遥感解译的石漠化监测技术方法。结果表明,研究区自2008-2016年,石漠化发生率明显下降,区域生态环境逐步恢复;本文研究的技术方法可行,在节约人力资源的基础上,可快速获取石漠化状况与程度。

关键词: 遥感解译, 地理国情, 石漠化, 植被综合盖度, 基岩裸露度

Abstract: Considering the complexity of the surface rocky desertification, drawing on the evaluation methods of the state and degree of the rocky desertification of the forestry department, making full use of the results of the geographical conditions of the land surface coverage and DEM, combining with the remote sensing monitoring technology to calculate the comprehensive coverage of the bedrock and vegetation on the surface, taking the field investigation as the evidence, obtaining the monitoring and evaluation factors of the rocky desertification in the study area, and determining the state and degree of the rocky desertification in the study area, a set of rock desertification monitoring technology is constructed based on remote sensing interpretation. The results show that from 2008 to 2016, the occurrence rate of rocky desertification in the study area has decreased significantly, and the regional ecological environment has been gradually restored. The technical methods of this study are feasible, and on the basis of saving human resources, the status and degree of rocky desertification can be quickly obtained.

Key words: remote sensing interpretation, geographical conditions, rocky desertification, percentage of bare rocks, vegetation coverage

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