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Abstract:
【目的】研究无人机遥感影像估算马铃薯Solanum tuberosum叶面积指数(Leaf area index,LAI)方法,提高马铃薯LAI反演精度。【方法】利用大疆P4M无人机采集2021年2-4月南方冬种马铃薯幼苗期、现蕾期、块茎膨大期多光谱影像,用LAI-2000冠层分析仪实测LAI数据。提取影像光谱、纹理等信息,分析植被指数、纹理特征与LAI的相关性,基于R~(2)_(adj)的全子集分析优选特征变量。采用主成分分析,融合光谱和纹理特征,用PCA-MLR(Principal component analysis-multiple linear regression)模型估算马铃薯L...
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华南农业大学学报
ISSN: 1001-411X
CN: 44-1110/S
Year: 2023
Issue: 01
Page: 1-12
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WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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