| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
27/09/2012 |
|
Data da última atualização: |
27/09/2012 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
SCHWIDERKE, D. K.; CEZAR, R. M.; VEZZANI, F. M.; FROUFE, L. C. M.; SEOANE, C. E. S. |
|
Afiliação: |
DANIEL KRAMER SCHWIDERKE, Estudante de pós-graduação UFPR; RAUL MATIAS CEZAR, Estudante de pós-graduação UFPR; FABIANE MACHADO VEZZANI, UFPR; LUIS CLAUDIO MARANHAO FROUFE, CNPF; CARLOS EDUARDO SICOLI SEOANE, CNPF. |
|
Título: |
Atributos químicos do solo em sistemas agroflorestais multiestrata sucessional e em áreas de regeneração natural. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
In: CONGRESSO FLORESTAL PARANAENSE, 4., 2012, Curitiba. Anais. [Curitiba]: Malinovski Florestal, 2012. CD-ROM. |
|
Idioma: |
Português |
|
Conteúdo: |
Os sistemas agroflorestais multiestrata sucessional (agrofloresta - AG) podem ser definidos como a interação entre espécies arbóreas, culturas agrícolas de ciclos anuais, semi-perenes e perenes. Este sistema vem ganhando cada vez mais destaque no Brasil. Diante disto o objetivo deste trabalho foi avaliar a influência do tempo de condução de sistemas agroflorestais multiestrata sucessional nos atributos químicos do solo e compará- los com áreas de regeneração natural. Este experimento foi realizado no município de Adrianópolis ? PR, sendo composto por três tratamentos: agrofloresta com até cinco anos (AG 05); agrofloresta de 5 - 10anos (AG 10); áreas de regeneração natural de 10 anos (RN). O delineamento experimental utilizado foi o delineamento de blocos ao acaso. Foram determinados o pH CaCl2, pH SMP, Ca+2 e Mg+2, K+ trocável, P disponível e carbono orgânico. Os valores de pH CaCl2, Ca+2 e K+ foram maiores no tratamento AG 05. Os valores de pH SMP, Mg+2, P disponível, e carbono orgânico não diferiram entre os tratamentos. Pode- se concluir que os sistemas agroflorestais multiestrata sucessionais impactaram de forma positiva os atributos químicos de qualidade do solo quando comparados com áreas de regeneração natural. |
|
Palavras-Chave: |
Ciclagem de nutriente. |
|
Thesagro: |
Carbono; Conservação; Solo. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66949/1/LuisF-CFP-AtributosQuimicos-1.pdf
|
|
Marc: |
LEADER 01946nam a2200205 a 4500
001 1934794
005 2012-09-27
008 2012 bl uuuu u00u1 u #d
100 1 $aSCHWIDERKE, D. K.
245 $aAtributos químicos do solo em sistemas agroflorestais multiestrata sucessional e em áreas de regeneração natural.
260 $aIn: CONGRESSO FLORESTAL PARANAENSE, 4., 2012, Curitiba. Anais. [Curitiba]: Malinovski Florestal, 2012. CD-ROM.$c2012
520 $aOs sistemas agroflorestais multiestrata sucessional (agrofloresta - AG) podem ser definidos como a interação entre espécies arbóreas, culturas agrícolas de ciclos anuais, semi-perenes e perenes. Este sistema vem ganhando cada vez mais destaque no Brasil. Diante disto o objetivo deste trabalho foi avaliar a influência do tempo de condução de sistemas agroflorestais multiestrata sucessional nos atributos químicos do solo e compará- los com áreas de regeneração natural. Este experimento foi realizado no município de Adrianópolis ? PR, sendo composto por três tratamentos: agrofloresta com até cinco anos (AG 05); agrofloresta de 5 - 10anos (AG 10); áreas de regeneração natural de 10 anos (RN). O delineamento experimental utilizado foi o delineamento de blocos ao acaso. Foram determinados o pH CaCl2, pH SMP, Ca+2 e Mg+2, K+ trocável, P disponível e carbono orgânico. Os valores de pH CaCl2, Ca+2 e K+ foram maiores no tratamento AG 05. Os valores de pH SMP, Mg+2, P disponível, e carbono orgânico não diferiram entre os tratamentos. Pode- se concluir que os sistemas agroflorestais multiestrata sucessionais impactaram de forma positiva os atributos químicos de qualidade do solo quando comparados com áreas de regeneração natural.
650 $aCarbono
650 $aConservação
650 $aSolo
653 $aCiclagem de nutriente
700 1 $aCEZAR, R. M.
700 1 $aVEZZANI, F. M.
700 1 $aFROUFE, L. C. M.
700 1 $aSEOANE, C. E. S.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Acre; Embrapa Agricultura Digital; Embrapa Florestas. |
|
Data corrente: |
21/07/2014 |
|
Data da última atualização: |
29/12/2016 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
STRASSBURG, B. B. N.; LATAWIEC, A. E.; BARIONI, L. G.; NOBRE, C. A.; PORFIRIO-DA-SILVA, V.; VALENTIM, J. F.; VIANNA, M.; ASSAD, E. D. |
|
Afiliação: |
BERNARDO B. N. STRASSBURG, International Institute for Sustainability e PUC/RJ; AGNIESZKA E. LATAWIEC, International Institute for Sustainability / Opole University of Technology / University of East Anglia; LUIS GUSTAVO BARIONI, CNPTIA; CARLOS A. NOBRE, National Institute for Space Research; VANDERLEY PORFIRIO DA SILVA, CNPF; JUDSON FERREIRA VALENTIM, CPAF-AC; MURILO VIANNA, CNPTIA; EDUARDO DELGADO ASSAD, CNPTIA. |
|
Título: |
When enough should be enough: improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Global Environmental Change, v. 28, p. 84-97, 2014. |
|
DOI: |
http://dx.doi.org/10.1016/j.gloenvcha.2014.06.001 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Providing food and other products to a growing human population while safeguarding natural ecosystems and the provision of their services is a significant scientific, social and political challenge. With food demand likely to double over the next four decades, anthropization is already driving climate change and is the principal force behind species extinction, among other environmental impacts. The sustainable intensification of production on current agricultural lands has been suggested as a key solution to the competition for land between agriculture and natural ecosystems. However, few investigations have shown the extent to which these lands can meet projected demands while considering biophysical constraints. Here we investigate the improved use of existing agricultural lands and present insights into avoiding future competition for land. We focus on Brazil, a country projected to experience the largest increase in agricultural production over the next four decades and the richest nation in terrestrial carbon and biodiversity. Using various models and climatic datasets, we produced the first estimate of the carrying capacity of Brazil´s 115 million hectares of cultivated pasturelands. We then investigated if the improved use of cultivated pasturelands would free enough land for the expansion of meat, crops, wood and biofuel, respecting biophysical constraints (i.e., terrain, climate) and including climate change impacts. We found that the current productivity of Brazilian cultivated pasturelands is 32-34% of its potential and that increasing productivity to 49-52% of the potential would suffice to meet demands for meat, crops, wood products and biofuels until at least 2040, without further conversion of natural ecosystems. As a result up to 14.3 Gt CO2 Eq could be mitigated. The fact that the country poised to undergo the largest expansion of agricultural production over the coming decades can do so without further conversion of natural habitats provokes the question whether the same can be true in other regional contexts and, ultimately, at the global scale. MenosProviding food and other products to a growing human population while safeguarding natural ecosystems and the provision of their services is a significant scientific, social and political challenge. With food demand likely to double over the next four decades, anthropization is already driving climate change and is the principal force behind species extinction, among other environmental impacts. The sustainable intensification of production on current agricultural lands has been suggested as a key solution to the competition for land between agriculture and natural ecosystems. However, few investigations have shown the extent to which these lands can meet projected demands while considering biophysical constraints. Here we investigate the improved use of existing agricultural lands and present insights into avoiding future competition for land. We focus on Brazil, a country projected to experience the largest increase in agricultural production over the next four decades and the richest nation in terrestrial carbon and biodiversity. Using various models and climatic datasets, we produced the first estimate of the carrying capacity of Brazil´s 115 million hectares of cultivated pasturelands. We then investigated if the improved use of cultivated pasturelands would free enough land for the expansion of meat, crops, wood and biofuel, respecting biophysical constraints (i.e., terrain, climate) and including climate change impacts. We found that the current productivity of Brazil... Mostrar Tudo |
|
Palavras-Chave: |
Actividades antropogénicas; Agricultura sustentable; Cambio climático; Increasing demand; Land sparing; Pastizales; Pasturelands; Rendimiento de los cultivos; Sustainable intensification; Sustentabilidade; Uso de la tierra. |
|
Thesagro: |
Agricultura; Agricultura sustentável; Demanda; Impacto Ambiental; Mudança climática; Pastagem; Pastagem cultivada; Produção Agrícola; Rendimento; Uso da terra. |
|
Thesaurus NAL: |
agriculture; Anthropogenic activities; Climate change; Crop yield; Environmental impact; Land use; Pastures; Sustainable agriculture. |
|
Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/152522/1/AP-When-enough-Strassburg-2014.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160321/1/25101.pdf
|
|
Marc: |
LEADER 03802naa a2200565 a 4500
001 2059579
005 2016-12-29
008 2014 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.gloenvcha.2014.06.001$2DOI
100 1 $aSTRASSBURG, B. B. N.
245 $aWhen enough should be enough$bimproving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil.$h[electronic resource]
260 $c2014
520 $aProviding food and other products to a growing human population while safeguarding natural ecosystems and the provision of their services is a significant scientific, social and political challenge. With food demand likely to double over the next four decades, anthropization is already driving climate change and is the principal force behind species extinction, among other environmental impacts. The sustainable intensification of production on current agricultural lands has been suggested as a key solution to the competition for land between agriculture and natural ecosystems. However, few investigations have shown the extent to which these lands can meet projected demands while considering biophysical constraints. Here we investigate the improved use of existing agricultural lands and present insights into avoiding future competition for land. We focus on Brazil, a country projected to experience the largest increase in agricultural production over the next four decades and the richest nation in terrestrial carbon and biodiversity. Using various models and climatic datasets, we produced the first estimate of the carrying capacity of Brazil´s 115 million hectares of cultivated pasturelands. We then investigated if the improved use of cultivated pasturelands would free enough land for the expansion of meat, crops, wood and biofuel, respecting biophysical constraints (i.e., terrain, climate) and including climate change impacts. We found that the current productivity of Brazilian cultivated pasturelands is 32-34% of its potential and that increasing productivity to 49-52% of the potential would suffice to meet demands for meat, crops, wood products and biofuels until at least 2040, without further conversion of natural ecosystems. As a result up to 14.3 Gt CO2 Eq could be mitigated. The fact that the country poised to undergo the largest expansion of agricultural production over the coming decades can do so without further conversion of natural habitats provokes the question whether the same can be true in other regional contexts and, ultimately, at the global scale.
650 $aagriculture
650 $aAnthropogenic activities
650 $aClimate change
650 $aCrop yield
650 $aEnvironmental impact
650 $aLand use
650 $aPastures
650 $aSustainable agriculture
650 $aAgricultura
650 $aAgricultura sustentável
650 $aDemanda
650 $aImpacto Ambiental
650 $aMudança climática
650 $aPastagem
650 $aPastagem cultivada
650 $aProdução Agrícola
650 $aRendimento
650 $aUso da terra
653 $aActividades antropogénicas
653 $aAgricultura sustentable
653 $aCambio climático
653 $aIncreasing demand
653 $aLand sparing
653 $aPastizales
653 $aPasturelands
653 $aRendimiento de los cultivos
653 $aSustainable intensification
653 $aSustentabilidade
653 $aUso de la tierra
700 1 $aLATAWIEC, A. E.
700 1 $aBARIONI, L. G.
700 1 $aNOBRE, C. A.
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aVALENTIM, J. F.
700 1 $aVIANNA, M.
700 1 $aASSAD, E. D.
773 $tGlobal Environmental Change$gv. 28, p. 84-97, 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
