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- W2000733812 abstract "Abstract The ability to map vegetation and in particular individual trees is a key component in forest management and long-term forest monitoring. Here we present a novel approach for mapping individual tree species based on ensemble modeling, i.e. combining the projections of several modeling techniques in order to reduce uncertainty. Using statistical modeling in conjunction with high-resolution aerial imagery (50 cm spatial resolution) and topo-climatic variables (5 m spatial resolution), we map the distributions of six major tree species (3 broadleaf and 3 conifers) in a study area of North-Eastern Switzerland. We also compare the relative predictive power of both topo-climatic and remote-sensing variables for mapping the spatial tree patterns and assess the importance of calibration data quality on model performance. We evaluate our projections using cross-validation as well as with independent data. Overall, the evaluations that we obtain for our vegetation maps are in line with, or higher than, those in similar studies. Depending on the considered tree species, 47.8–85.6% of our samples were correctly predicted, and we obtain an overall CCR (correct classification rate) of 0.72 and a Cohen’s kappa of 0.65. Comparing the predictive power of the different modeling techniques, we find that ensemble modeling (i.e. combining the projections of different individual modeling techniques) generally performs better than individual modeling techniques." @default.
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- W2000733812 date "2013-12-01" @default.
- W2000733812 modified "2023-09-26" @default.
- W2000733812 title "Combining ensemble modeling and remote sensing for mapping individual tree species at high spatial resolution" @default.
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- W2000733812 doi "https://doi.org/10.1016/j.foreco.2013.07.059" @default.
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