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More than one quarter of Africa’s tree cover is found outside areas previously classified as forest

The consistent monitoring of trees both inside and outside of forests is key to sustainable land management. Current monitoring systems either ignore trees outside forests or are too expensive to be applied consistently across countries on a repeated basis. Here we use the PlanetScope nanosatellite...

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Autores principales: Reiner, Florian, Brandt, Martin, Tong, Xiaoye, Skole, David, Kariryaa, Ankit, Ciais, Philippe, Davies, Andrew, Hiernaux, Pierre, Chave, Jérôme, Mugabowindekwe, Maurice, Igel, Christian, Oehmcke, Stefan, Gieseke, Fabian, Li, Sizhuo, Liu, Siyu, Saatchi, Sassan, Boucher, Peter, Singh, Jenia, Taugourdeau, Simon, Dendoncker, Morgane, Song, Xiao-Peng, Mertz, Ole, Tucker, Compton J., Fensholt, Rasmus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10154416/
https://www.ncbi.nlm.nih.gov/pubmed/37130845
http://dx.doi.org/10.1038/s41467-023-37880-4
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author Reiner, Florian
Brandt, Martin
Tong, Xiaoye
Skole, David
Kariryaa, Ankit
Ciais, Philippe
Davies, Andrew
Hiernaux, Pierre
Chave, Jérôme
Mugabowindekwe, Maurice
Igel, Christian
Oehmcke, Stefan
Gieseke, Fabian
Li, Sizhuo
Liu, Siyu
Saatchi, Sassan
Boucher, Peter
Singh, Jenia
Taugourdeau, Simon
Dendoncker, Morgane
Song, Xiao-Peng
Mertz, Ole
Tucker, Compton J.
Fensholt, Rasmus
author_facet Reiner, Florian
Brandt, Martin
Tong, Xiaoye
Skole, David
Kariryaa, Ankit
Ciais, Philippe
Davies, Andrew
Hiernaux, Pierre
Chave, Jérôme
Mugabowindekwe, Maurice
Igel, Christian
Oehmcke, Stefan
Gieseke, Fabian
Li, Sizhuo
Liu, Siyu
Saatchi, Sassan
Boucher, Peter
Singh, Jenia
Taugourdeau, Simon
Dendoncker, Morgane
Song, Xiao-Peng
Mertz, Ole
Tucker, Compton J.
Fensholt, Rasmus
author_sort Reiner, Florian
collection PubMed
description The consistent monitoring of trees both inside and outside of forests is key to sustainable land management. Current monitoring systems either ignore trees outside forests or are too expensive to be applied consistently across countries on a repeated basis. Here we use the PlanetScope nanosatellite constellation, which delivers global very high-resolution daily imagery, to map both forest and non-forest tree cover for continental Africa using images from a single year. Our prototype map of 2019 (RMSE = 9.57%, bias = −6.9%). demonstrates that a precise assessment of all tree-based ecosystems is possible at continental scale, and reveals that 29% of tree cover is found outside areas previously classified as tree cover in state-of-the-art maps, such as in croplands and grassland. Such accurate mapping of tree cover down to the level of individual trees and consistent among countries has the potential to redefine land use impacts in non-forest landscapes, move beyond the need for forest definitions, and build the basis for natural climate solutions and tree-related studies.
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spelling pubmed-101544162023-05-04 More than one quarter of Africa’s tree cover is found outside areas previously classified as forest Reiner, Florian Brandt, Martin Tong, Xiaoye Skole, David Kariryaa, Ankit Ciais, Philippe Davies, Andrew Hiernaux, Pierre Chave, Jérôme Mugabowindekwe, Maurice Igel, Christian Oehmcke, Stefan Gieseke, Fabian Li, Sizhuo Liu, Siyu Saatchi, Sassan Boucher, Peter Singh, Jenia Taugourdeau, Simon Dendoncker, Morgane Song, Xiao-Peng Mertz, Ole Tucker, Compton J. Fensholt, Rasmus Nat Commun Article The consistent monitoring of trees both inside and outside of forests is key to sustainable land management. Current monitoring systems either ignore trees outside forests or are too expensive to be applied consistently across countries on a repeated basis. Here we use the PlanetScope nanosatellite constellation, which delivers global very high-resolution daily imagery, to map both forest and non-forest tree cover for continental Africa using images from a single year. Our prototype map of 2019 (RMSE = 9.57%, bias = −6.9%). demonstrates that a precise assessment of all tree-based ecosystems is possible at continental scale, and reveals that 29% of tree cover is found outside areas previously classified as tree cover in state-of-the-art maps, such as in croplands and grassland. Such accurate mapping of tree cover down to the level of individual trees and consistent among countries has the potential to redefine land use impacts in non-forest landscapes, move beyond the need for forest definitions, and build the basis for natural climate solutions and tree-related studies. Nature Publishing Group UK 2023-05-02 /pmc/articles/PMC10154416/ /pubmed/37130845 http://dx.doi.org/10.1038/s41467-023-37880-4 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Reiner, Florian
Brandt, Martin
Tong, Xiaoye
Skole, David
Kariryaa, Ankit
Ciais, Philippe
Davies, Andrew
Hiernaux, Pierre
Chave, Jérôme
Mugabowindekwe, Maurice
Igel, Christian
Oehmcke, Stefan
Gieseke, Fabian
Li, Sizhuo
Liu, Siyu
Saatchi, Sassan
Boucher, Peter
Singh, Jenia
Taugourdeau, Simon
Dendoncker, Morgane
Song, Xiao-Peng
Mertz, Ole
Tucker, Compton J.
Fensholt, Rasmus
More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title_full More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title_fullStr More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title_full_unstemmed More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title_short More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
title_sort more than one quarter of africa’s tree cover is found outside areas previously classified as forest
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10154416/
https://www.ncbi.nlm.nih.gov/pubmed/37130845
http://dx.doi.org/10.1038/s41467-023-37880-4
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