应用环境星监测北部湾地区采伐和造林动态的研究  

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

作　　者：代玉丽[1] 

机构地区：[1]国家林业局调查规划设计院,北京100714

出　　处：《林业资源管理》2011年第4期122-126,共5页Forest Resources Management

基　　金：国防科技工业民用专项科研技术研究项目

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。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.

关 键 词：北部湾 环境星 采伐 造林 动态 监测 

分 类 号：TP7[自动化与计算机技术—检测技术与自动化装置] S757.2[自动化与计算机技术—控制科学与工程]