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| Registros recuperados: 102 | |
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| VENDRUSCULO, L. G.; CASTAGNA, D.; ZOLIN, C. A.; COSTA, C. A. da; RODRIGUES, R. de A. R.. |
| Resumo - O objetivo deste trabalho foi aplicar a metodologia Hectares Indicator visando à estimativa do desmatamento evitado em 20 municípios dos estados do Pará e Mato Grosso, dentro do bioma Amazônia considerando os anos de 2016 e 2017 como períodos base. O desmatamento evitado, segundo esta metodologia desenvolvida por cientistas ingleses, é a diferença entre a perda florestal estimada e a perda florestal observada. A perda estimada baseia-se em fatores (acessibilidade, aptidão agrícola, recursos florestais e minerais extraíveis e áreas protegidas) importantes para potenciais ações de supressão ou degradação florestal. Este estudo foi realizado dentro das atividades do projeto Rural Sustentável. Foram observados municípios com valores de supressão... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Metodologia Hectares Indicator; Perda florestal; Ganho florestal; Sensoriamento Remoto; Desmatamento; Econometria; Amazonia; Remote sensing; Deforestation. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117042 |
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| GOMES, M. A. F.; FILIZOLA, H. F.; PAULA, M. M. de; DIOGO, A.; CERDEIRA, A. L.. |
| O presente trabalho tem por objetivo apresentar os dados de reconhecimento e de seleção de áreas de recarga visualmente mais críticas do Aquífero Guarani, localizadas no município de Mineiros, GO, dentro da porção noroeste da Bacia Sedimentar do Paraná. Os locais selecionados serão objeto de estudo do projeto denominado "Uso agrícola das áreas de recarga do Aquífero Gurani e implicações na qualidade da água subterrânea", principalmente no que se refere à caracterização de áreas que oferecem maior risco de ocntaminação (potencial e efetivo) para a água subterrânea, à partir das atividades agrícolas, como também do projeto intitulado "Recuperação ambiental das nascentes do Rio Araguaia. |
| Tipo: Folhetos |
Palavras-chave: Aquífero; Área de recarga; Agricultura; Impacto ambiental; Agrotóxico; Desmatamento; Erosão do solo; Agriculture; Environmental impact; Pesticides; Deforestation; Soil erosion. |
| Ano: 2000 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/963895 |
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| ELLWANGER,JOEL HENRIQUE; KULMANN-LEAL,BRUNA; KAMINSKI,VALÉRIA L.; VALVERDE-VILLEGAS,JACQUELINE MARÍA; VEIGA,ANA BEATRIZ G. DA; SPILKI,FERNANDO R.; FEARNSIDE,PHILIP M.; CAESAR,LÍLIAN; GIATTI,LEANDRO LUIZ; WALLAU,GABRIEL L.; ALMEIDA,SABRINA E.M.; BORBA,MAURO R.; HORA,VANUSA P. DA; CHIES,JOSÉ ARTUR B.. |
| Abstract Amazonian biodiversity is increasingly threatened due to the weakening of policies for combating deforestation, especially in Brazil. Loss of animal and plant species, many not yet known to science, is just one among many negative consequences of Amazon deforestation. Deforestation affects indigenous communities, riverside as well as urban populations, and even planetary health. Amazonia has a prominent role in regulating the Earth’s climate, with forest loss contributing to rising regional and global temperatures and intensification of extreme weather events. These climatic conditions are important drivers of emerging infectious diseases, and activities associated with deforestation contribute to the spread of disease vectors. This review... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon rainforest; Biodiversity; Emerging infectious disease; Deforestation; Pathogens; Public health. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100724 |
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| van Benthem, Arthur A.; Kerr, Suzi. |
| Voluntary opt-in programs to reduce emissions in unregulated sectors or countries have spurred considerable discussion. Since any regulator will make errors in predicting baselines and participants will self-select into the program, adverse selection will reduce efficiency and possibly environmental integrity. In contrast, pure subsidies lead to full participation but require large financial transfers. We present a simple model to analyze this trade-off between adverse selection and infra-marginal transfers. We find that increasing the scale of voluntary programs both improves efficiency and reduces transfers. We show that discounting (paying less than full value for offsets) is inefficient and cannot be used to reduce the fraction of offsets that are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy; Deforestation; Offsets; Adverse selection; REDD; Climate change policy; Opt-in.. |
| Ano: 2011 |
URL: http://purl.umn.edu/100569 |
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| Yackulic, Charles B; Department of Ecology, Evolution and Environmental Biology, Columbia University ; c_yackulic@yahoo.com; Fagan, Matthew ; Department of Ecology, Evolution and Environmental Biology, Columbia University; mef2153@columbia.edu; Jain, Meha; Department of Ecology, Evolution and Environmental Biology, Columbia University; mj2415@columbia.edu; Jina, Amir; Sustainability Program, Columbia University; amirjina@gmail.com; Lim, Yili; Department of Ecology, Evolution and Environmental Biology, Columbia University ; yilime@gmail.com; Marlier, Miriam; Department of Earth and Environmental Sciences, Columbia University; miriammarlier@gmail.com; Muscarella, Robert; Department of Ecology, Evolution and Environmental Biology, Columbia University; rm2824@columbia.edu; Adame, Patricia; Forest Research Centre (CIFOR-INIA), Madrid, Spain ; adame.patricia@inia.es; DeFries, Ruth; Department of Ecology, Evolution and Environmental Biology, Columbia University; rd2402@columbia.edu; Uriarte, Maria; Department of Ecology, Evolution and Environmental Biology, Columbia University; mu2126@columbia.edu. |
| Forest transitions (FT) occur when socioeconomic development leads to a shift from net deforestation to reforestation; these dynamics have been observed in multiple countries across the globe, including the island of Puerto Rico in the Caribbean. Starting in the 1950s, Puerto Rico transitioned from an agrarian to a manufacturing and service economy reliant on food imports, leading to extensive reforestation. In recent years, however, net reforestation has leveled off. Here we examine the drivers of forest transition in Puerto Rico from 1977 to 2000 at two subnational, nested spatial scales (municipality and barrio) and over two time periods (1977-1991 and 1991-2000). This study builds on previous work by considering the social and biophysical factors that... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agricultural abandonment; Deforestation; Forest transition; Puerto Rico; Reforestation. |
| Ano: 2011 |
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| DOURADO,EDUARDA D.R.; FERREIRA-KEPPLER,RUTH L.; MARTINS,RENATO T.; RONDEROS,MARIA M.. |
| ABSTRACT We assessed the immature stages of Ceratopogonidae (Diptera) in artificial containers in an urban forest fragment in Manaus (Brazil), including their behavioral, biological and ecological information. In addition, we evaluated the effects of deforestation in an open and forested area on Ceratopogonidae communities. Immatures were sampled between August 2012 and July 2014 in artificial containers installed in both habitat types. We collected 685 immatures of seven morpho-species of Bezzia Kieffer, Culicoides Latreille, Dasyhelea Kieffer, Forcipomyia Meigen, and Palpomyia Meigen. In the open area, we recorded higher temperature and electrical conductivity values than in the forested area; however, these variables did not differ between seasons.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Aquatic insects; Artificial containers; Deforestation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602757 |
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| Caviglia-Harris, Jill L.. |
| In developing countries across the globe the impact of livestock on deforestation levels has been profound. This paper explores the role of the cattle industry in household decision making for small landholders in the Brazilian Amazon. Important inquiries raised in the literature are addressed, including the determinants of the co-evolution of deforestation and cattle herds, the possibility of production specialization, and the role of cattle in household livelihoods. Panel data suggest that households have changed focus from crop introduction to cattle. Empirical models reveal that location, wealth, and education are among the important determinants of production decisions and cattle accumulation. Policy recommendations include a focus on the cattle... |
| Tipo: Journal Article |
Palavras-chave: Latin America; Brazil; Household production; Land use; Cattle; Deforestation; Land Economics/Use; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/10233 |
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| Acerbi Júnior,Fausto Weimar; Silveira,Eduarda Martiniano de Oliveira; Mello,José Márcio de; Mello,Carlos Rogério de; Scolforo,José Roberto Soares. |
| The Normalized Difference Vegetation Index (NDVI) is often used to extract information from vegetated areas since it is directly related to vegetation parameters such as percent of ground cover, photosynthetic activity of the plant and leaf area index. The aim of this paper was to analyze the potencial of semivariograms generated from NDVI values to detect changes in vegetated areas, analyzing their behavior (shape) and derived metrics (range, sill and nugget). Semivariograms were generated from NDVI values derived from Landsat TM images of May 2010, June 2010 and July 2011. The study area is located in the northern state of Minas Gerais, Brazil, and is covered by Brazilian savannas vegetation, totalizing 1,596 ha. Semivariograms were generated after the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deforestation; Geostatistics; Remote sensing. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200103 |
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| Bradley, Andrew V; Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Cambridgeshire, PE28 2LS, UK; avbradley@ceh.ac.uk; Millington, Andrew C; Department of Geography, 810 O&M Building, Texas A&M University, College Station, Texas 77843-3147, USA; millington@geog.tamu.edu. |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anti-narcotics policies; Bolivia; Coca; Deforestation; Forest clearance rates; Land-use change. |
| Ano: 2008 |
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| Registros recuperados: 102 | |
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