摘要
以中空间分辨率卫星监测技术自动提取的广东省某时段森林资源变化图斑为研究对象,通过人工目视判读和外业实地验证,计算中空间分辨率卫星监测技术自动提取变化图斑准确率。结果表明:清远市阳山县按图斑个数和图斑面积计算得出的中空间分辨率卫星监测技术自动提取变化图斑准确率均达到80%;在修正监测技术模型参数和算法后,广州市从化区按图斑个数、图斑面积计算得出的中空间分辨率卫星监测技术自动提取变化图斑准确率分别达到95.40%、97.02%。准确度可以满足实际应用推广的要求,可为今后广东省森林资源管理工作提供借鉴。
This paper takes the change patterns of a certain period in Guangdong Province of time for the forest resources automatically extracted with medium resolution satellite monitoring technology as the research object,the accuracy rate of automatically extracting change patterns by medium spatia resolution satellite monitoring technology can be calculated with manual visual judgment and field work.The result shows that the accuracy rates calculating by the amount and propotion of patterns with medium spatia resolution satellite monitoring technology,are both up to 80%,taking Yangshan County,Qingyuan City as the research object,And after revision of parameters and algorithm of monitoring technology,the accuracy rates calculating by the amount and propotion of patterns with medium spatia resolution satellite monitoring technology,are up to 95.40%and 97.02%separately when apply the research for Conghua District,Guangzhou City.With that accuracy,it's concluded that medium spatia resolution satellite monitoring technology can meet the requirement of practical application and will provide great support for Guangdong forest resource management in the future.
作者
张宏伟
胡淑仪
ZHANG Hongwei;HU Shuyi(Guangdong Forest Resources Conservation Center,Guangzhou 510173,Guangdong,China)
出处
《福建林业科技》
2021年第1期74-77,83,共5页
Journal of Fujian Forestry Science and Technology
基金
国家重点研发计划子课题(2017YFA0604401)
广东省林业科技创新项目。
关键词
中空间分辨率卫星
森林督查
变化图斑
森林资源管理
medium spatia resolution satellite
forest supervisionr
change pattern
forest resource management
