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Table 2 Mean relative errors (MREs) (%) of the LAI obtained with all the combinations of inversion model, canopy element clumping index (Ωe) algorithm and sampling scheme. For each combination of inversion model and Ωe algorithm, the four sampling schemes with the smallest MREs shown in red and the largest shown in green

From: Evaluating the impact of sampling schemes on leaf area index measurements from digital hemispherical photography in Larix principis-rupprechtii forest plots