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Forest Ecosystems
Fig. 6 | Forest Ecosystems

Fig. 6

From: Combining WV-2 images and tree physiological factors to detect damage stages of Populus gansuensis by Asian longhorned beetle (Anoplophora glabripennis) at the tree level

Fig. 6

Graphs of variable importance in the model for damage stages of Populus gansuensis caused by ALB. (a) Mean decrease in the accuracy of the model if that variable were to be removed; (b) mean decrease in the Gini coefficient. Variables that result in nodes with higher purity have a higher decrease in Gini coefficient

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