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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/06/2023 |
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Data da última atualização: |
22/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DA PONTE, E.; ALCASENA, F.; BHAGWAT, T.; HU, Z.; EUFEMIA, L.; TURETTA, A. P. D.; BONATTI, M.; BARR, P.-L. |
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Afiliação: |
EMMANUEL DA PONTE, BIOCARBON PARTNERS; FERMÍN ALCASENA, UNIVERSITY OF LLEIDA; TEJAS BHAGWAT, UNIVERSITY OF GOTTINGEN; ZHONGYANG HU, UTRECHT UNIVERSITY; LUCA EUFEMIA, LEIBNIZ CENTRE FOR AGRICULTURAL LANDSCAPE RESEARCH; ANA PAULA DIAS TURETTA, CNPS; MICHELLE BONATTI, LEIBNIZ CENTRE FOR AGRICULTURAL LANDSCAPE RESEARCH; POPPY-LOUISE BARR, BIOCARBON PARTNERS. |
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Título: |
Assessing wildfire activity and forest loss in protected areas of the Amazon basin. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Applied Geography, v. 157, 102970, Aug. 2023. |
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DOI: |
https://doi.org/10.1016/j.apgeog.2023.102970 |
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Idioma: |
Inglês |
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Conteúdo: |
Wildfires annually burn extensive areas in the Amazonia. Still, more is needed to know about the complex combination of triggering socioeconomic factors and environmental policies that motivate and explain the growing wildfire activity and forest losses. This study assessed wildfire occurrence, exposure, and transmission to natural forests in protected natural areas (n = 438) from 9 countries encompassing 140 million hectares of the Amazon basin. The fire ignitions and burned areas were first detected using remote sensing products from 2001 to 2018. We then conducted a wildfire transmission analysis to determine the neighboring fire source hotspots and land uses associated with human-caused ignitions encroaching on protected areas. Finally, we analyzed the environmental policies to understand the failure of such regulations to prevent the escape of fires burning large areas within protected sites. The results showed that recurrent wildfire hotspots cover a reduced portion but account for the bulk of the burned area. We found that, on average, wildfires burned 86,700 ha yr-1 of natural forests in protected sites, of which 10.5% corresponded to large incoming fires. Savanna and grasslands concentrated 29% and 41% of fire ignitions, where farmers and ranchers use fire periodically to clear extensive grazing properties. However, this high ignition density did not necessarily correlate with burned areas. The lack of a clear understanding of environmental policies and insufficient law enforcement was likely the main reasons for the continuous wildfire transmission to protected forests. The quantitative outcomes provide science-based criteria for detecting the high-priority areas within the Amazon where management efforts could help reverse the growing wildfire risk to protected natural forests. MenosWildfires annually burn extensive areas in the Amazonia. Still, more is needed to know about the complex combination of triggering socioeconomic factors and environmental policies that motivate and explain the growing wildfire activity and forest losses. This study assessed wildfire occurrence, exposure, and transmission to natural forests in protected natural areas (n = 438) from 9 countries encompassing 140 million hectares of the Amazon basin. The fire ignitions and burned areas were first detected using remote sensing products from 2001 to 2018. We then conducted a wildfire transmission analysis to determine the neighboring fire source hotspots and land uses associated with human-caused ignitions encroaching on protected areas. Finally, we analyzed the environmental policies to understand the failure of such regulations to prevent the escape of fires burning large areas within protected sites. The results showed that recurrent wildfire hotspots cover a reduced portion but account for the bulk of the burned area. We found that, on average, wildfires burned 86,700 ha yr-1 of natural forests in protected sites, of which 10.5% corresponded to large incoming fires. Savanna and grasslands concentrated 29% and 41% of fire ignitions, where farmers and ranchers use fire periodically to clear extensive grazing properties. However, this high ignition density did not necessarily correlate with burned areas. The lack of a clear understanding of environmental policies and insufficient... Mostrar Tudo |
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Palavras-Chave: |
Environmental policies; Forest loss; Human ignitions; Wildfire regime. |
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Thesagro: |
Incêndio Florestal; Política Ambiental. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02685naa a2200301 a 4500
001 2154557
005 2023-06-22
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.apgeog.2023.102970$2DOI
100 1 $aDA PONTE, E.
245 $aAssessing wildfire activity and forest loss in protected areas of the Amazon basin.$h[electronic resource]
260 $c2023
520 $aWildfires annually burn extensive areas in the Amazonia. Still, more is needed to know about the complex combination of triggering socioeconomic factors and environmental policies that motivate and explain the growing wildfire activity and forest losses. This study assessed wildfire occurrence, exposure, and transmission to natural forests in protected natural areas (n = 438) from 9 countries encompassing 140 million hectares of the Amazon basin. The fire ignitions and burned areas were first detected using remote sensing products from 2001 to 2018. We then conducted a wildfire transmission analysis to determine the neighboring fire source hotspots and land uses associated with human-caused ignitions encroaching on protected areas. Finally, we analyzed the environmental policies to understand the failure of such regulations to prevent the escape of fires burning large areas within protected sites. The results showed that recurrent wildfire hotspots cover a reduced portion but account for the bulk of the burned area. We found that, on average, wildfires burned 86,700 ha yr-1 of natural forests in protected sites, of which 10.5% corresponded to large incoming fires. Savanna and grasslands concentrated 29% and 41% of fire ignitions, where farmers and ranchers use fire periodically to clear extensive grazing properties. However, this high ignition density did not necessarily correlate with burned areas. The lack of a clear understanding of environmental policies and insufficient law enforcement was likely the main reasons for the continuous wildfire transmission to protected forests. The quantitative outcomes provide science-based criteria for detecting the high-priority areas within the Amazon where management efforts could help reverse the growing wildfire risk to protected natural forests.
650 $aAmazonia
650 $aIncêndio Florestal
650 $aPolítica Ambiental
653 $aEnvironmental policies
653 $aForest loss
653 $aHuman ignitions
653 $aWildfire regime
700 1 $aALCASENA, F.
700 1 $aBHAGWAT, T.
700 1 $aHU, Z.
700 1 $aEUFEMIA, L.
700 1 $aTURETTA, A. P. D.
700 1 $aBONATTI, M.
700 1 $aBARR, P.-L.
773 $tApplied Geography$gv. 157, 102970, Aug. 2023.
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Registro original: |
Embrapa Solos (CNPS) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Algodão. Para informações adicionais entre em contato com cnpa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
23/03/2016 |
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Data da última atualização: |
23/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
SILVA, F. A. C.; MELO FILHO, P. DE A.; LIMA, L. M. de; SANTOS, R. C. dos. |
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Afiliação: |
FABIANA APARECIDA CAVALCANTE SILVA, UNIVERSIDADE DE SANTA CRUZ - ILHÉUS, BA; PÉRICLES DE ALBUQUERQUE MELO FILHO, UFRPE; LIZIANE MARIA DE LIMA, CNPA; ROSEANE CAVALCANTI DOS SANTOS, CNPA. |
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Título: |
A chlorophyllase differentially expressed in resistant cotton during infection with Colletotrichum gossypii var. cephalosporioides. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Asian Journal of Microbiology, Biotechnology & Environmental Sciences, v. 17, n. 4, p. 901-906, 2015. |
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ISSN: |
0972-3005 |
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Idioma: |
Inglês |
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Conteúdo: |
Resistant and susceptible cotton cultivars were infected with Colletotrichum gossypii var. Cephalosporioides in order to identify differentially expressed transcripts associated to disease tolerance. Plants were grown in greenhouse and sprayed with a fungus suspension at 1 x 106 conidia mL-1. Young leaves were collected to total RNA extraction at 3 and 15 days after inoculation. For molecular procedures, 3 days after inoculation leaves-RNA were used to RT-PCR reactions, with ten pre-selected RAPD primers. Eight of these primers exhibited polymorphic bands and were selected for transcripts analysis. Differential expression was visualized in both cultivars in down and up regulations and also new apparently activated transcripts were registered. A transcript (200 bp) obtained from cv. resistant BRS Antares exhibited homology (86%) with the GmChl 3 gene (AB181949.1) that codifies to Chlorophyllase III in soybean plants. Dot blot analysis revealed that this transcript was over-expressed just in a resistant cv. Antares at 3 and 15 days after inoculation. |
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Palavras-Chave: |
Cephalosporioides; Disease; Ramulosis. |
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Thesagro: |
Algodão; Colletotrichum gossypii; Stress. |
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Thesaurus NAL: |
cotton; fungi. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01890naa a2200265 a 4500
001 2041721
005 2016-03-23
008 2015 bl uuuu u00u1 u #d
022 $a0972-3005
100 1 $aSILVA, F. A. C.
245 $aA chlorophyllase differentially expressed in resistant cotton during infection with Colletotrichum gossypii var. cephalosporioides.$h[electronic resource]
260 $c2015
520 $aResistant and susceptible cotton cultivars were infected with Colletotrichum gossypii var. Cephalosporioides in order to identify differentially expressed transcripts associated to disease tolerance. Plants were grown in greenhouse and sprayed with a fungus suspension at 1 x 106 conidia mL-1. Young leaves were collected to total RNA extraction at 3 and 15 days after inoculation. For molecular procedures, 3 days after inoculation leaves-RNA were used to RT-PCR reactions, with ten pre-selected RAPD primers. Eight of these primers exhibited polymorphic bands and were selected for transcripts analysis. Differential expression was visualized in both cultivars in down and up regulations and also new apparently activated transcripts were registered. A transcript (200 bp) obtained from cv. resistant BRS Antares exhibited homology (86%) with the GmChl 3 gene (AB181949.1) that codifies to Chlorophyllase III in soybean plants. Dot blot analysis revealed that this transcript was over-expressed just in a resistant cv. Antares at 3 and 15 days after inoculation.
650 $acotton
650 $afungi
650 $aAlgodão
650 $aColletotrichum gossypii
650 $aStress
653 $aCephalosporioides
653 $aDisease
653 $aRamulosis
700 1 $aMELO FILHO, P. DE A.
700 1 $aLIMA, L. M. de
700 1 $aSANTOS, R. C. dos
773 $tAsian Journal of Microbiology, Biotechnology & Environmental Sciences$gv. 17, n. 4, p. 901-906, 2015.
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