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林业资源管理 ›› 2011, Vol. 0 ›› Issue (4): 122-126.

• 科学技术 • 上一篇    下一篇

应用环境星监测北部湾地区采伐和造林动态的研究

代玉丽   

  1. 国家林业局调查规划设计院,北京 100714
  • 收稿日期:2011-04-23 修回日期:2011-06-15 出版日期:2011-08-28 发布日期:2020-12-21
  • 作者简介:代玉丽(1961-),女,辽宁人,高工,学士,从事湿地保护及遥感应用研究。Email:daiyuli_9@yahoo.com.cn
  • 基金资助:
    国防科技工业民用专项科研技术研究项目

Monitoring of Harvest and Reforestation Dynamics with HJ-1 Imagery in Beibu Gulf Region

DAI Yuli   

  1. Academy of Forest Inventory and Planning,Beijing 100714,China
  • Received:2011-04-23 Revised:2011-06-15 Online:2011-08-28 Published:2020-12-21

摘要: 采用2008和2009年末环境星CCD数据,对广西北部湾地区的森林采伐和造林动态进行了监测。结果表明:1)环境星CCD图像有较好的内部几何一致性,几何配准之后,2期图像之间可以达到0.5个像元以内的配准精度,适合进行动态监测;2)采用NDVI差值法,监测的采伐和造林情况与目视判读结果有很高的一致性,可以达到较高的监测精度;3)监测结果显示,监测期内广西北部湾地区桉树林的面积正在扩张,2009年末相对2008年末桉树面积增加为13.4%,其中一半以上为采伐针叶林后种植的桉树。

关键词: 北部湾, 环境星, 采伐, 造林, 动态, 监测

Abstract: This paper describes the monitoring results of harvest and reforestation dynamics between 2008 and 2009 with HJ-1 CCD imagery in Beibu Gulf region. Major results show:1)HJ-1 CCD imagery has good internal geometric consistency. The registration accuracy between two-period imageries can be less than 0.5 pixel,which is suitable for dynamic monitoring. 2)Monitoring the harvest and reforestation by NDVI detection has a high consistency with ocular interpretation,and can reach a high monitoring accuracy. 3)Monitoring results indicate that area of Eucalyptus is expanding,which increased by 13.4% comparing to that of 2008. Among that more than 50% is reforested on harvested conifer woodlands.

Key words: Beibu Gulf region, HJ-1, harvest, reforestation, dynamics, monitoring

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