| 基于MERSI数据的山西森林覆盖监测 |
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| 引用本文： | 武永利,田国珍.基于MERSI数据的山西森林覆盖监测[J].林业科学,2011,47(2). |
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| 作者姓名： | 武永利 田国珍 |
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| 作者单位： | 山西省气候中心,太原,030006 |
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| 摘 要： | 利用FY3-3A/MERSI可见光和近红外波段数据合成得到假彩色卫星数字图像,结合区域土地利用、植被类型及森林资源分布等数字化图件,在对图像进行目视解译及多波段数据非监督分类基础上,将地物覆盖划分为林地、冬小麦、水体和裸地4种类型;采用4种监督分类方法(最大似然分类法、平行算法、最小距离法和马氏距离法)进行地物分类;在分析分类结果可行基础上,依据区域森林覆盖数字化图件对林地分类结果进行精度评估,确定研究区域林地空间分布结果.结果表明:4种监督分类方法中,最大似然分类法分类结果的精度最高,达到85%,其次是最小距离和马氏距离法,平行算法的结果较差.可见,利用MERSI数据采用监督分类和非监督分类相结合的方法提取的山西省森林资源分布结果精度较高,符合实际情况,可作为区域宏观森林资源分布监测的有效手段.
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| 关 键 词： | MERSI数据 监督分类 森林 |
Forest Remote Monitoring Based on MERSI Data in Shanxi |
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| Wu Yongli,Tian Guozhen.Forest Remote Monitoring Based on MERSI Data in Shanxi[J].Scientia Silvae Sinicae,2011,47(2). |
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| Authors: | Wu Yongli Tian Guozhen |
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| Institution: | Wu Yongli Tian Guozhen(Shanxi Climate Center Taiyuan 030006) |
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| Abstract: | In this study,the false color images of visible and near-infrared spectra of FY3 /MERSI data were used,combined with other digital maps of regional land use,vegetation type and distribution of forests.The multi-channel data were classified into 4 categories:forest,winter wheat,water and bare land,by visual interpretation and unsupervised classification.These features were then analyzed their spectral statistical characteristics of visible and near-infrared spectra.Based on all of these analyses,the multi-ch... |
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| Keywords: | MERSI data supervised classification forest |
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