Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery

The world's forests are experiencing rapid changes due to land use and climate change. However, a detailed map of global forest gain at fine spatial and temporal resolutions is still missing. To fill this gap, we developed an automatic framework for mapping annual forest gain globally usi...

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Main Authors: Zhenrong Du, Le Yu, Jianyu Yang, David Coomes, Kasturi Kanniah, Haohuan Fu, Peng Gong
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10103610/
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author Zhenrong Du
Le Yu
Jianyu Yang
David Coomes
Kasturi Kanniah
Haohuan Fu
Peng Gong
author_facet Zhenrong Du
Le Yu
Jianyu Yang
David Coomes
Kasturi Kanniah
Haohuan Fu
Peng Gong
author_sort Zhenrong Du
collection DOAJ
description The world's forests are experiencing rapid changes due to land use and climate change. However, a detailed map of global forest gain at fine spatial and temporal resolutions is still missing. To fill this gap, we developed an automatic framework for mapping annual forest gain globally using Landsat time series, the Landsat-based detection of trends in disturbance and recovery (LandTrendr) algorithm, and the Google Earth engine platform. First, stable forest samples collected based on the first all-season sample set and an automated sample migrate method were used to determine annual normalized burn ratio (NBR) thresholds for forest gain detection. Second, with the NBR time series from 1982 to 2021 and LandTrendr algorithm, we produced a dataset of global forest gain year from 1983 to 2021 based on a set of decision rules. Our results reveal that over 60% gains occurred in Russia, Canada, the United States, Indonesia, and China, and approximately half of global forest gain occurred between 2001 and 2010. The forest gain map developed in this study exhibited good consistency with statistical inventories and independent regional and global products. Our dataset can be useful for policy-relevant research on the global carbon cycle, and our method provides an efficient and transferable approach for monitoring other types of land cover dynamics.
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spelling doaj.art-ade06b88618e43d3b8bc0d59290e6a4e2023-05-09T23:00:11ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352023-01-01164195420410.1109/JSTARS.2023.326779610103610Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat ImageryZhenrong Du0https://orcid.org/0000-0003-4439-8543Le Yu1https://orcid.org/0000-0003-3115-2042Jianyu Yang2David Coomes3https://orcid.org/0000-0002-8261-2582Kasturi Kanniah4https://orcid.org/0000-0001-6736-4819Haohuan Fu5https://orcid.org/0000-0002-6982-2235Peng Gong6College of Land Science and Technology, China Agricultural University, Beijing, ChinaMinistry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, ChinaCollege of Land Science and Technology, China Agricultural University, Beijing, ChinaConservation Research Institute and the Department of Plant Sciences, University of Cambridge, Cambridge, U.K.Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment and Faculty of Geoinformation and Real Estate, Universiti Teknologi Malaysia, Johor Bahru, MalaysiaMinistry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, ChinaMinistry of Education Ecological Field Station for East Asia Migratory Birds, Tsinghua University, Beijing, ChinaThe world's forests are experiencing rapid changes due to land use and climate change. However, a detailed map of global forest gain at fine spatial and temporal resolutions is still missing. To fill this gap, we developed an automatic framework for mapping annual forest gain globally using Landsat time series, the Landsat-based detection of trends in disturbance and recovery (LandTrendr) algorithm, and the Google Earth engine platform. First, stable forest samples collected based on the first all-season sample set and an automated sample migrate method were used to determine annual normalized burn ratio (NBR) thresholds for forest gain detection. Second, with the NBR time series from 1982 to 2021 and LandTrendr algorithm, we produced a dataset of global forest gain year from 1983 to 2021 based on a set of decision rules. Our results reveal that over 60% gains occurred in Russia, Canada, the United States, Indonesia, and China, and approximately half of global forest gain occurred between 2001 and 2010. The forest gain map developed in this study exhibited good consistency with statistical inventories and independent regional and global products. Our dataset can be useful for policy-relevant research on the global carbon cycle, and our method provides an efficient and transferable approach for monitoring other types of land cover dynamics.https://ieeexplore.ieee.org/document/10103610/Change detectionforest disturbanceland coverLandsat-based detection of trends in disturbance and recovery (LandTrendr)
spellingShingle Zhenrong Du
Le Yu
Jianyu Yang
David Coomes
Kasturi Kanniah
Haohuan Fu
Peng Gong
Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Change detection
forest disturbance
land cover
Landsat-based detection of trends in disturbance and recovery (LandTrendr)
title Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
title_full Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
title_fullStr Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
title_full_unstemmed Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
title_short Mapping Annual Global Forest Gain From 1983 to 2021 With Landsat Imagery
title_sort mapping annual global forest gain from 1983 to 2021 with landsat imagery
topic Change detection
forest disturbance
land cover
Landsat-based detection of trends in disturbance and recovery (LandTrendr)
url https://ieeexplore.ieee.org/document/10103610/
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AT kasturikanniah mappingannualglobalforestgainfrom1983to2021withlandsatimagery
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