Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar
The island of Madagascar has a unique biodiversity, mainly located in the tropical forests of the island. This biodiversity is highly threatened by anthropogenic deforestation. Existing historical forest maps at national level are scattered and have substantial gaps which prevent an exhaustive assessment of long-term deforestation trends in Madagascar. In this study, we combined historical national forest cover maps (covering the period 1953–2000) with a recent global annual tree cover loss dataset (2001–2014) to look at six decades of deforestation and forest fragmentation in Madagascar (from 1953 to 2014). We produced new forest cover maps at 30 m resolution for the year 1990 and annually from 2000 to 2014 over the full territory of Madagascar. We estimated that Madagascar has lost 44% of its natural forest cover over the period 1953–2014 (including 37% over the period 1973–2014). Natural forests cover 8.9 Mha in 2014 (15% of the national territory) and include 4.4 Mha (50%) of moist forests, 2.6 Mha (29%) of dry forests, 1.7 Mha of spiny forests (19%) and 177 000 ha (2%) of mangroves. Since 2005, the annual deforestation rate has progressively increased in Madagascar to reach 99 000 ha/yr during 2010–2014 (corresponding to a rate of 1.1%/yr). Around half of the forest (46%) is now located at less than 100 m from the forest edge. Our approach could be replicated to other developing countries with tropical forest. Accurate forest cover change maps can be used to assess the effectiveness of past and current conservation programs and implement new strategies for the future. In particular, forest maps and estimates can be used in the REDD+ framework which aims at “Reducing Emissions from Deforestation and forest Degradation” and for optimizing the current protected area network.
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Subjects: | K01 - Foresterie - Considérations générales, K70 - Dégâts causés aux forêts et leur protection, P01 - Conservation de la nature et ressources foncières, forêt, forêt tropicale, déboisement, biodiversité, http://aims.fao.org/aos/agrovoc/c_3062, http://aims.fao.org/aos/agrovoc/c_24904, http://aims.fao.org/aos/agrovoc/c_15590, http://aims.fao.org/aos/agrovoc/c_33949, http://aims.fao.org/aos/agrovoc/c_4510, |
Online Access: | http://agritrop.cirad.fr/587679/ http://agritrop.cirad.fr/587679/1/Vieilledent2018-BiologicalConservation.pdf |
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dig-cirad-fr-5876792024-01-29T00:59:13Z http://agritrop.cirad.fr/587679/ http://agritrop.cirad.fr/587679/ Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar. Vieilledent Ghislain, Grinand Clovis, Rakotomalala Fety, Ranaivosoa Rija, Rakotoarijaona Jean-Roger, Allnutt Thomas F., Achard Frédéric. 2018. Biological Conservation, 222 : 189-197.https://doi.org/10.1016/j.biocon.2018.04.008 <https://doi.org/10.1016/j.biocon.2018.04.008> Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar Vieilledent, Ghislain Grinand, Clovis Rakotomalala, Fety Ranaivosoa, Rija Rakotoarijaona, Jean-Roger Allnutt, Thomas F. Achard, Frédéric eng 2018 Biological Conservation K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 Madagascar http://aims.fao.org/aos/agrovoc/c_4510 The island of Madagascar has a unique biodiversity, mainly located in the tropical forests of the island. This biodiversity is highly threatened by anthropogenic deforestation. Existing historical forest maps at national level are scattered and have substantial gaps which prevent an exhaustive assessment of long-term deforestation trends in Madagascar. In this study, we combined historical national forest cover maps (covering the period 1953–2000) with a recent global annual tree cover loss dataset (2001–2014) to look at six decades of deforestation and forest fragmentation in Madagascar (from 1953 to 2014). We produced new forest cover maps at 30 m resolution for the year 1990 and annually from 2000 to 2014 over the full territory of Madagascar. We estimated that Madagascar has lost 44% of its natural forest cover over the period 1953–2014 (including 37% over the period 1973–2014). Natural forests cover 8.9 Mha in 2014 (15% of the national territory) and include 4.4 Mha (50%) of moist forests, 2.6 Mha (29%) of dry forests, 1.7 Mha of spiny forests (19%) and 177 000 ha (2%) of mangroves. Since 2005, the annual deforestation rate has progressively increased in Madagascar to reach 99 000 ha/yr during 2010–2014 (corresponding to a rate of 1.1%/yr). Around half of the forest (46%) is now located at less than 100 m from the forest edge. Our approach could be replicated to other developing countries with tropical forest. Accurate forest cover change maps can be used to assess the effectiveness of past and current conservation programs and implement new strategies for the future. In particular, forest maps and estimates can be used in the REDD+ framework which aims at “Reducing Emissions from Deforestation and forest Degradation” and for optimizing the current protected area network. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/587679/1/Vieilledent2018-BiologicalConservation.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1016/j.biocon.2018.04.008 10.1016/j.biocon.2018.04.008 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocon.2018.04.008 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.biocon.2018.04.008 info:eu-repo/semantics/reference/purl/https://doi.org/10.18167/DVN1/2FP7LR info:eu-repo/semantics/reference/purl/https://doi.org/10.18167/DVN1/275TDF info:eu-repo/semantics/reference/purl/https://doi.org/10.18167/DVN1/AUBRRC info:eu-repo/grantAgreement/EC///// |
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K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_4510 K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_4510 |
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K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_4510 K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_4510 Vieilledent, Ghislain Grinand, Clovis Rakotomalala, Fety Ranaivosoa, Rija Rakotoarijaona, Jean-Roger Allnutt, Thomas F. Achard, Frédéric Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
description |
The island of Madagascar has a unique biodiversity, mainly located in the tropical forests of the island. This biodiversity is highly threatened by anthropogenic deforestation. Existing historical forest maps at national level are scattered and have substantial gaps which prevent an exhaustive assessment of long-term deforestation trends in Madagascar. In this study, we combined historical national forest cover maps (covering the period 1953–2000) with a recent global annual tree cover loss dataset (2001–2014) to look at six decades of deforestation and forest fragmentation in Madagascar (from 1953 to 2014). We produced new forest cover maps at 30 m resolution for the year 1990 and annually from 2000 to 2014 over the full territory of Madagascar. We estimated that Madagascar has lost 44% of its natural forest cover over the period 1953–2014 (including 37% over the period 1973–2014). Natural forests cover 8.9 Mha in 2014 (15% of the national territory) and include 4.4 Mha (50%) of moist forests, 2.6 Mha (29%) of dry forests, 1.7 Mha of spiny forests (19%) and 177 000 ha (2%) of mangroves. Since 2005, the annual deforestation rate has progressively increased in Madagascar to reach 99 000 ha/yr during 2010–2014 (corresponding to a rate of 1.1%/yr). Around half of the forest (46%) is now located at less than 100 m from the forest edge. Our approach could be replicated to other developing countries with tropical forest. Accurate forest cover change maps can be used to assess the effectiveness of past and current conservation programs and implement new strategies for the future. In particular, forest maps and estimates can be used in the REDD+ framework which aims at “Reducing Emissions from Deforestation and forest Degradation” and for optimizing the current protected area network. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales K70 - Dégâts causés aux forêts et leur protection P01 - Conservation de la nature et ressources foncières forêt forêt tropicale déboisement biodiversité http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_15590 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_4510 |
author |
Vieilledent, Ghislain Grinand, Clovis Rakotomalala, Fety Ranaivosoa, Rija Rakotoarijaona, Jean-Roger Allnutt, Thomas F. Achard, Frédéric |
author_facet |
Vieilledent, Ghislain Grinand, Clovis Rakotomalala, Fety Ranaivosoa, Rija Rakotoarijaona, Jean-Roger Allnutt, Thomas F. Achard, Frédéric |
author_sort |
Vieilledent, Ghislain |
title |
Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
title_short |
Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
title_full |
Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
title_fullStr |
Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
title_full_unstemmed |
Combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in Madagascar |
title_sort |
combining global tree cover loss data with historical national forest cover maps to look at six decades of deforestation and forest fragmentation in madagascar |
url |
http://agritrop.cirad.fr/587679/ http://agritrop.cirad.fr/587679/1/Vieilledent2018-BiologicalConservation.pdf |
work_keys_str_mv |
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