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- 2016
HJ-1B CCD2与SPOT4 HRVIR数据在森林地上生物量反演中的比较分析
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Abstract:
以贡嘎山地区为研究区，选取HJ-1B CCD2和SPOT4 HRVIR为数据源，结合地面同步实测数据，分别采用植被指数法和主成分分析法对森林地上生物量进行估算，并基于交叉验证的方法对比分析了两种传感器估算贡嘎山森林地上生物量的效果：针对单一植被指数，基于比值植被指数构建的生物量反演模型明显优于其他植被指数，且HJ-1B CCD2的表现好于SPOT4 HRVIR；在联合多种植被指数建立的生物量反演模型方面，两种数据源的估算能力基本相当，交叉验证的相关系数分别为0.545 8和0.563 4，均方根误差分别为27.811 4 t·ha和27.169 6 t·ha；主成分分析法则为HJ-1B CCD2传感器的表现优于SPOT4 HRVIR
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