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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Florestas; Embrapa Hortaliças; Embrapa Roraima. |
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Data corrente: |
15/06/1998 |
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Data da última atualização: |
13/03/2008 |
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Autoria: |
EMBRAPA (Brasilia, DF). |
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Título: |
25 anos fazendo um Brasil melhor. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Brasilia, 1998. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Outros
Português |
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Palavras-Chave: |
Brasil; EMBRAPA; Research institute. |
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Thesagro: |
Agricultura; Instituição de Pesquisa; Pesquisa. |
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Thesaurus Nal: |
agriculture; Brazil; research; research institutions. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00560nam a2200229 a 4500
001 1289882
005 2008-03-13
008 1998 bl uuuu 0 #d
100 1 $aEMBRAPA (Brasilia, DF).
245 $a25 anos fazendo um Brasil melhor.
260 $aBrasilia$c1998
300 $c1 CD-ROM.
650 $aagriculture
650 $aBrazil
650 $aresearch
650 $aresearch institutions
650 $aAgricultura
650 $aInstituição de Pesquisa
650 $aPesquisa
653 $aBrasil
653 $aEMBRAPA
653 $aResearch institute
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
10/11/2021 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BOURGOIN, C.; BETBEDER, J.; LE ROUX, R.; GOND, V.; OSZWALD, J.; ARVOR, D.; BAUDRY, J.; BOUSSARD, H.; LE CLECH, S.; FREITAS, L. J. M. de; DESSARD, H.; LÄDERACH, P.; REYMONDIN, L.; BLANC, L. |
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Afiliação: |
CLÉMENT BOURGOIN, CIRAD / CIAT; JULIE BETBEDER, CIRAD / CATIE; RENAN LE ROUX, CIRAD; VALÉRY GOND, CIRAD; JOHAN OSZWALD, Université Rennes 2; DAMIEN ARVOR, Université Rennes 2; JACQUES BAUDRY, BAGAP, INRAE, Institut Agro; HUGUES BOUSSARD, BAGAP, INRAE, Institut Agro; SOLEN LE CLECH, Wageningen University and Research; LUCAS JOSE MAZZEI DE FREITAS, CPATU; HÉLÈNE DESSARD, CIRAD; PETER LÄDERACH, CIAT; LOUIS REYMONDIN, CIAT; LILIAN BLANC, CIRAD. |
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Título: |
Looking beyond forest cover: an analysis of landscape-scale predictors of forest degradation in the Brazilian Amazon. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Environmental Research Letters, v. 16, n. 11, 114045, Nov. 2021. |
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DOI: |
https://doi.org/10.1088/1748-9326/ac31eb |
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Idioma: |
Inglês |
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Conteúdo: |
While forest degradation rates and extent exceed deforestation in the Brazilian Amazon, less attention is given to the factors controlling its spatial distribution. No quantified correlation exists between changes of forest structure due to anthropogenic disturbances and dynamics of land use and cover change occurring at broader spatial levels. This study examines the influence of multi-scale landscape structure factors (i.e. spatial composition, configuration and dynamic of land use/cover) on primary forest's aboveground biomass (AGB), spanning from low to highly degraded, in Paragominas municipality (Pará state). We used random forest models to identify the most important landscape predictors of degradation and clustering methods to analyze their distribution and interactions. We found that 58% of the variance of AGB could be explained by metrics reflecting land use practices and agricultural dynamics around primary forest patches and that their spatial patterns were not randomly distributed. Forest degradation is mainly driven by fragmentation effects resulting from old deforestation and colonization events linked with cropland expansion (e.g. soybean and maize) coupled with high accessibility to market. To a lesser extent, degradation is driven by recent and ongoing (1985?2015) deforestation and fragmentation in slash-and-burn agricultural areas, characterized by heterogeneous mosaics of pastures and fallow lands combined with high use of fire. Our findings highlight the potential of landscape-level framework and remotely sensed land cover data for a thorough understanding of the distribution of forest degradation across human-modified landscapes. Addressing these spatial determinants by looking at agricultural dynamics beyond forest cover is necessary to improve forest management which has major implications for biodiversity, carbon and other ecosystem services. MenosWhile forest degradation rates and extent exceed deforestation in the Brazilian Amazon, less attention is given to the factors controlling its spatial distribution. No quantified correlation exists between changes of forest structure due to anthropogenic disturbances and dynamics of land use and cover change occurring at broader spatial levels. This study examines the influence of multi-scale landscape structure factors (i.e. spatial composition, configuration and dynamic of land use/cover) on primary forest's aboveground biomass (AGB), spanning from low to highly degraded, in Paragominas municipality (Pará state). We used random forest models to identify the most important landscape predictors of degradation and clustering methods to analyze their distribution and interactions. We found that 58% of the variance of AGB could be explained by metrics reflecting land use practices and agricultural dynamics around primary forest patches and that their spatial patterns were not randomly distributed. Forest degradation is mainly driven by fragmentation effects resulting from old deforestation and colonization events linked with cropland expansion (e.g. soybean and maize) coupled with high accessibility to market. To a lesser extent, degradation is driven by recent and ongoing (1985?2015) deforestation and fragmentation in slash-and-burn agricultural areas, characterized by heterogeneous mosaics of pastures and fallow lands combined with high use of fire. Our findings highlight the... Mostrar Tudo |
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Thesagro: |
Degradação Ambiental; Sensoriamento Remoto; Uso da Terra. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227627/1/Bourgoin-2021-Environ.-Res.-Lett.-16-114045.pdf
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Marc: |
LEADER 02866naa a2200325 a 4500
001 2135995
005 2021-11-10
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1088/1748-9326/ac31eb$2DOI
100 1 $aBOURGOIN, C.
245 $aLooking beyond forest cover$ban analysis of landscape-scale predictors of forest degradation in the Brazilian Amazon.$h[electronic resource]
260 $c2021
520 $aWhile forest degradation rates and extent exceed deforestation in the Brazilian Amazon, less attention is given to the factors controlling its spatial distribution. No quantified correlation exists between changes of forest structure due to anthropogenic disturbances and dynamics of land use and cover change occurring at broader spatial levels. This study examines the influence of multi-scale landscape structure factors (i.e. spatial composition, configuration and dynamic of land use/cover) on primary forest's aboveground biomass (AGB), spanning from low to highly degraded, in Paragominas municipality (Pará state). We used random forest models to identify the most important landscape predictors of degradation and clustering methods to analyze their distribution and interactions. We found that 58% of the variance of AGB could be explained by metrics reflecting land use practices and agricultural dynamics around primary forest patches and that their spatial patterns were not randomly distributed. Forest degradation is mainly driven by fragmentation effects resulting from old deforestation and colonization events linked with cropland expansion (e.g. soybean and maize) coupled with high accessibility to market. To a lesser extent, degradation is driven by recent and ongoing (1985?2015) deforestation and fragmentation in slash-and-burn agricultural areas, characterized by heterogeneous mosaics of pastures and fallow lands combined with high use of fire. Our findings highlight the potential of landscape-level framework and remotely sensed land cover data for a thorough understanding of the distribution of forest degradation across human-modified landscapes. Addressing these spatial determinants by looking at agricultural dynamics beyond forest cover is necessary to improve forest management which has major implications for biodiversity, carbon and other ecosystem services.
650 $aDegradação Ambiental
650 $aSensoriamento Remoto
650 $aUso da Terra
700 1 $aBETBEDER, J.
700 1 $aLE ROUX, R.
700 1 $aGOND, V.
700 1 $aOSZWALD, J.
700 1 $aARVOR, D.
700 1 $aBAUDRY, J.
700 1 $aBOUSSARD, H.
700 1 $aLE CLECH, S.
700 1 $aFREITAS, L. J. M. de
700 1 $aDESSARD, H.
700 1 $aLÄDERACH, P.
700 1 $aREYMONDIN, L.
700 1 $aBLANC, L.
773 $tEnvironmental Research Letters$gv. 16, n. 11, 114045, Nov. 2021.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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