30m空间分辨率土地覆被产品在福建省的一致性分析和精度评价
首发时间:2022-03-11
摘要:本研究基于4套30m空间分辨率土地覆被产品和2019年福建省土地覆被类型样本点数据集,通过偏差系数和相关系数分析了面积一致性,通过误差矩阵和产品间两两叠置分析了空间一致性和类型混淆程度。结果表明:4套土地覆被产品之间相关系数均较高,对福建省的刻画基本一致,在林地、水体、人造地表和耕地4种类型上偏差较小,草地、灌木地、湿地和裸地偏差较大;总体精度CLCD(84.89%)>FROM-GLC30(81.90%)>GLC-FCS30(81.75%)>GlobeLand30(72.95%),林地、水体和人造地表的生产者精度和用户精度均较高,类型混淆程度也较低,简言之,林地是表现最好的土地覆被类型。综合来看,在福建省应注意结合不同应用需求选择土地覆被产品。
关键词: 土地利用/土地覆被 土地覆被产品 一致性分析 精度评价 福建省
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Consistency analysis and accuracy assessment of 30m spatial resolution land cover products in Fujian Province
Abstract:In this paper,we based on four sets of 30m spatial resolution land cover products and sample point datasets of land cover types in Fujian Province in 2019, this study analyzed the area consistency by deviation coefficient and correlation coefficient, and analyzed the spatial consistency and type confusion degree by error matrix and the overlappingof products. The results showed that the correlation coefficients among all four sets of land cover products were high, and the portrayal of Fujian Province was basically consistent, with less deviation on four types of forest land, water bodies, artificial surface and cropland, and the deviationsof grassland, shrubland, wetland and bare land were large.The overall accuracy was CLCD (84.89%) > FROM-GLC30 (81.90%) > GLC-FCS30 (81.75%) > GlobeLand30 (72.95%), with higher produce accuracy and user accuracy and lower type confusion for forest, water bodies and artificial surfaces; in short, forestis the best performing land cover type. In general, attention should be paid to the application of land cover products in fujian province based on different application requirements.
Keywords: Land use/land cover land cover products consistency analysis accuracy assessment Fujian Province
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30m空间分辨率土地覆被产品在福建省的一致性分析和精度评价
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