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. 2022 Feb 7;12:832044. doi: 10.3389/fpls.2021.832044

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Copyright © 2022 Lv, Zhao, Zhang, Zhang, Yue, Meng, Li, Cui, Sun, Zhang, Chang, Li, Yi and Shen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The schematic diagram of the reprocessing of aerial photos. NDVI_quadrat denotes the NDVI value of aerial photos, NDVI_shrub and NDVI_herbaceous denote the NDVI values of shrub and herbaceous, respectively.