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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
25/07/2017 |
Data da última atualização: |
21/01/2020 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ESQUERDO, J. C. D. M.; PARIZZI, T. N. T.; COUTINHO, A. C.; ANTUNES, J. F. G.; BERTOLO, L. S. |
Afiliação: |
JÚLIO CÉSAR DALLA MORA ESQUERDO, CNPTIA; TALITA NOGUEIRA TERRA PARIZZI, Funcate; ALEXANDRE CAMARGO COUTINHO, CNPTIA; JOÃO FRANCISCO GONÇALVES ANTUNES, CNPTIA; LÍDIA SANCHES BERTOLO, Funcate. |
Título: |
Dinâmica do uso e cobertura da terra na mesorregião Nordeste Mato-grossense. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... Santos: Inpe, 2017. |
Páginas: |
p. 4659-4666. |
ISBN: |
978-85-17-00088-1 |
Idioma: |
Português |
Conteúdo: |
O objetivo deste estudo foi identificar e quantificar as mudanças do uso e cobertura da terra que ocorreram no estado de Mato Grosso, num período de dez anos, especificamente na mesorregião Nordeste Mato-grossense, considerando os mapeamentos de 2004 e 2014 do Projeto TerraClass. |
Palavras-Chave: |
Cobertura da terra; Mapeamento; TerraClass. |
Thesagro: |
Sensoriamento remoto; Uso da terra. |
Thesaurus Nal: |
Land cover; Land use; Remote sensing. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162028/1/Esquerdo-XVIIISBSR-2017.pdf
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Marc: |
LEADER 01124nam a2200277 a 4500 001 2073126 005 2020-01-21 008 2017 bl uuuu u00u1 u #d 020 $a978-85-17-00088-1 100 1 $aESQUERDO, J. C. D. M. 245 $aDinâmica do uso e cobertura da terra na mesorregião Nordeste Mato-grossense.$h[electronic resource] 260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... Santos: Inpe$c2017 300 $ap. 4659-4666. 520 $aO objetivo deste estudo foi identificar e quantificar as mudanças do uso e cobertura da terra que ocorreram no estado de Mato Grosso, num período de dez anos, especificamente na mesorregião Nordeste Mato-grossense, considerando os mapeamentos de 2004 e 2014 do Projeto TerraClass. 650 $aLand cover 650 $aLand use 650 $aRemote sensing 650 $aSensoriamento remoto 650 $aUso da terra 653 $aCobertura da terra 653 $aMapeamento 653 $aTerraClass 700 1 $aPARIZZI, T. N. T. 700 1 $aCOUTINHO, A. C. 700 1 $aANTUNES, J. F. G. 700 1 $aBERTOLO, L. S.
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Embrapa Agricultura Digital (CNPTIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
04/12/2023 |
Data da última atualização: |
04/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MENG, L.; CHAMBERS, J.; KOVEN, C.; PASTORELLO, G.; GIMENEZ, B.; JARDINE, K.; TANG, Y.; McDOWELL, N.; NEGRON-JUAREZ, R.; LONGO, M.; ARAUJO, A. C. de; TOMASELLA, J.; FONTES, C.; MOHAN, M.; HIGUCHI, N. |
Afiliação: |
LIN MENG, Lawrence Berkeley National Laboratory; JEFFREY CHAMBERS, Lawrence Berkeley National Laboratory / University of California Berkeley; CHARLES KOVEN, Lawrence Berkeley National Laboratory; GILBERTO PASTORELLO, Lawrence Berkeley National Laboratory; BRUNO GIMENEZ, INPA / Smithsonian Tropical Research Institute; KOLBY JARDINE, Lawrence Berkeley National Laboratory; YAO TANG, Lawrence Berkeley National Laboratory; NATE MCDOWELL, Pacific Northwest National Laboratory; ROBINSON NEGRON-JUAREZ, Lawrence Berkeley National Laboratory; MARCOS LONGO, Lawrence Berkeley National Laboratory; ALESSANDRO CARIOCA DE ARAUJO, CPATU; JAVIER TOMASELLA, Centro Nacional de Monitoramento e Alertas de Desastres Naturais—CEMADEN; CLARISSA FONTES, University of California; MIDHUN MOHAN, Lawrence Berkeley National Laboratory / University of California Berkeley; NIRO HIGUCHI, INPA. |
Título: |
Soil moisture thresholds explain a shift from light-limited to water-limited sap velocity in the Central Amazon during the 2015-16 El Niño drought. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Environmental Research Letters, v. 17, n. 6, 064023, 2022. |
DOI: |
https://doi.org/10.1088/1748-9326/ac6f6d |
Idioma: |
Inglês |
Conteúdo: |
Transpiration is often considered to be light- but not water-limited in humid tropical rainforests due to abundant soil water, even during the dry seasons. The record-breaking 2015?16 El Niño drought provided a unique opportunity to examine whether transpiration is constrained by water under severe lack of rainfall. We measured sap velocity, soil water content, and meteorological variables in an old-growth upland forest in the Central Amazon throughout the 2015?16 drought. We found a rapid decline in sap velocity (-38 ± 21%, mean ± SD.) and in its temporal variability (-88%) during the drought compared to the wet season. Such changes were accompanied by a marked decline in soil moisture and an increase in temperature and vapor pressure deficit. Sap velocity was largely limited by net radiation during the wet and normal dry seasons; however, it shifted to be primarily limited by soil moisture during the drought. The threshold in which sap velocity became dominated by soil moisture was at 0.33 m3 m-3 (around -150 kPa in soil matric potential), below which sap velocity dropped steeply. Our study provides evidence for a soil water threshold on transpiration in a moist tropical forest, suggesting a shift from light limitation to water limitation under future climate characterized by increased temperature and an increased frequency, intensity, duration and extent of extreme drought events. |
Palavras-Chave: |
Ciclo da água; Soil moisture; Water cycle. |
Thesagro: |
Evapotranspiração; Floresta Tropical; Seca; Umidade do Solo. |
Thesaurus NAL: |
Drought; Evapotranspiration; Tropical forests. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02623naa a2200421 a 4500 001 2159119 005 2023-12-04 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1088/1748-9326/ac6f6d$2DOI 100 1 $aMENG, L. 245 $aSoil moisture thresholds explain a shift from light-limited to water-limited sap velocity in the Central Amazon during the 2015-16 El Niño drought.$h[electronic resource] 260 $c2022 520 $aTranspiration is often considered to be light- but not water-limited in humid tropical rainforests due to abundant soil water, even during the dry seasons. The record-breaking 2015?16 El Niño drought provided a unique opportunity to examine whether transpiration is constrained by water under severe lack of rainfall. We measured sap velocity, soil water content, and meteorological variables in an old-growth upland forest in the Central Amazon throughout the 2015?16 drought. We found a rapid decline in sap velocity (-38 ± 21%, mean ± SD.) and in its temporal variability (-88%) during the drought compared to the wet season. Such changes were accompanied by a marked decline in soil moisture and an increase in temperature and vapor pressure deficit. Sap velocity was largely limited by net radiation during the wet and normal dry seasons; however, it shifted to be primarily limited by soil moisture during the drought. The threshold in which sap velocity became dominated by soil moisture was at 0.33 m3 m-3 (around -150 kPa in soil matric potential), below which sap velocity dropped steeply. Our study provides evidence for a soil water threshold on transpiration in a moist tropical forest, suggesting a shift from light limitation to water limitation under future climate characterized by increased temperature and an increased frequency, intensity, duration and extent of extreme drought events. 650 $aDrought 650 $aEvapotranspiration 650 $aTropical forests 650 $aEvapotranspiração 650 $aFloresta Tropical 650 $aSeca 650 $aUmidade do Solo 653 $aCiclo da água 653 $aSoil moisture 653 $aWater cycle 700 1 $aCHAMBERS, J. 700 1 $aKOVEN, C. 700 1 $aPASTORELLO, G. 700 1 $aGIMENEZ, B. 700 1 $aJARDINE, K. 700 1 $aTANG, Y. 700 1 $aMcDOWELL, N. 700 1 $aNEGRON-JUAREZ, R. 700 1 $aLONGO, M. 700 1 $aARAUJO, A. C. de 700 1 $aTOMASELLA, J. 700 1 $aFONTES, C. 700 1 $aMOHAN, M. 700 1 $aHIGUCHI, N. 773 $tEnvironmental Research Letters$gv. 17, n. 6, 064023, 2022.
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