Consulta: subjectFacets:"Environmental degradation"
Registros recuperados: 42
Data/hora: 04/06/2024 15:00:25

Integrating Sacred Knowledge for Conservation: Cultures and Landscapes in Southwest China
Provedor de dados: 7
Autores: Xu, Jianchu; Kunming Institute of Botany, Chinese Academy of Sciences; jxu@icimod.org; Ma, Erzi T; Liangshan Nationality Institute;; Tashi, Duojie; Snowland Greatrivers Environmental Protection Association; uyohata@sina.com; Fu, Yongshou; Yunnan College of Art; yongshou_f@yahoo.com; Lu, Zhi; Conservation International; luzhi@pku.edu.cn; Melick, David; Kunming Institute of Botany, Chinese Academy of Sciences; dmelick@mail.kib.ac.cn.
China is undergoing economic growth and expansion to a free market economy at a scale and pace that are unprecedented in human history. This is placing great pressure on the country&amp;#8217;s environment and cultural diversity. This paper examines a number of case histories in China, focusing on the culturally varied and ecologically diverse southwest region of the country. We show how developments in recent Chinese history have devalued and in some cases eliminated indigenous knowledge and practices in the quest to strengthen the centralized state. Despite these changes, more than 30 ethnic minorities live in southwest China. For generations these peoples have maintained landscapes through traditional land use and cultural practices. This indigenous...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity; Economic development; Environmental degradation; Ethnic minorities; Indigenous knowledge; Sacred knowledge; China.
Ano: 2005

Alterações da fertilidade do solo cultivado com milho e caupi submetidos à calagem e adubação química, em Irituia-PA.
Provedor de dados: 14
Autores: OLIVEIRA, R. F. de; GALVÃO, E. U. P.
bitstream/item/34445/1/ORIENTAL-BP13.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Recuperacao de area degradada; Cultivo sequencial; Feijao-de-porco; Caupi; Irituia; Pará; Brasil; Reclamation; Plant soil relations; Maize.; Calagem; Consorciação de Cultura; Fertilidade do Solo; Feijão de Corda; Milho; Relação Solo-Planta.; Amazonia; Environmental degradation; Cowpeas; Liming; Intercropping; Soil fertility.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377394

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45.
This second annual report of the project summarizes the activities between January and December 1996. During this year, the project left the preparotory stage of purchasing, importing and installing equipment and entered into the stage of routine data collection and analysis.The report is divided into two parts. In the main part, the project team is presented and its acitivities during the year 1996 are briefly summarized. The annexes give detailed accounts of selected research acitivities of the project. Despite numerous problems, all project activities were in principle successful, and there were no major changes to the time plan of the project. The root distribution studies were completed. Significant progress was made in soil physical studies, soil...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Area abandonada; Agrofloresta; Fluxo; Brasil; Amazonas; Tropical rain forest; Agroforest; Fluxes; Analysis; Água; Análise; Conservação do Solo; Floresta Tropical Úmida; Nutriente; Environmental degradation; Nutrients; Soil conservation; Water.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667417

Recuperação de áreas degradadas e abandonadas, através de sistemas de policultivo.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23 (Manaus-AM).
Manejo da area experimental, compreendendo: limpezas, podas, tratamentos fitossanitarios, adubacoes e colheita das plantas. Estudos de fitopatologia: observacoes continuas sobre a incidencia de doencas nas plantas, registro da incidencia da vassoura-de-bruxa no cupuacu, assim como adocao de medidas de controle, quando necessario. Estudos da variabilidade do cupuacu envolvendo a variabilidade das plantas nos diferentes sistemas de cultivo. Estudos da biologia do solo: analises de amostras do solo para quantificar a variabilidade de fungos micorrizicos vesicular-arbusculares na area experimental, na capoeira e na floresta primaria. Estudos de vegetacao: avaliacao dos tipos de vegetacao envolvendo a caracterizacao, o desenvolvimento e a identificacao das...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Tropical rain forest; Reclamation; Sustainability; Árvore Frutífera; Biologia do Solo; Cultivo Multiplo; Desenvolvimento Sustentável; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Micorriza; Recuperação do Solo; Agroforestry; Environmental degradation; Forest trees; Fruit trees; Multiple cropping; Soil biology; Vesicular arbuscular mycorrhizae.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667908

Investigations on tree species suitable for the recultivation of degraded land areas in central Amazonia.
Provedor de dados: 14
Autores: SHIFT ENV 42/2 (Manaus-AM).
During the first phase of the project (january 1, 1995 until april 30, 1998), the influence of the water and element supply of tree different plantation systems on the growth and wood formation of eight native tree species (Swietenia macrophylla, Carapa guianensis, Cedrela odorata, Dipterex odorata, Hymenaea courbaril, Ceiba pentandra, Virola surinamensis, Tabebuia heptaphylla) was investigated. In 1998, the data were analyzed. The results subsequently served as a basis for the second phase of the project (comp. chapter 5) which should give deeper insight into the relationship between exogenous and endogenous input, the plant metabolism, and the wood formation and wood quality of plantation-grown trees. due to the results obtained in these studies in the...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Reclation; Forestr trees; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Multiple cropping.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668164

Avaliação da reabilitação de solos de áreas mineradas de xisto por métodos espectroscópicos magnéticos.
Provedor de dados: 14
Autores: MANGRICH, A. S.; SANTOS, J. V. dos; NOVOTNY, E. H.; PEREIRA, B. F.
bitstream/item/197376/1/Cap-1-Avaliacao-da-reabilitacao-de-solos-de-areas-mineradas.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Xisto; Mineração; Recuperação do Solo; Degradação Ambiental; Mining; Soil restoration; Environmental degradation; Shale.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1108987

Efeito do rejeito de mineração de níquel na germinação e crescimento de stylosanthes guianensis (aubl.) Sw. (Leguminosae) (2009).
Provedor de dados: 14
Autores: FREIRE, I. de S.; AGEADO, J. C.; MORAES, A. S.; ARAGÃO, T. P.; MUNIZ, D. H. de F.; MALAQUIAS, J. V.; SILVA, J. C. S.; ANDRADE, L. R. M. de; OLIVEIRA-FILHO, E. C. de; AQUINO, F. de G.
bitstream/item/78160/1/p2009-048.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Recuperação ambiental; Forrageira; Forages; Nickel mining waste; Soil contamination; Growth; Environmental regeneration.; Environmental degradation; Germination.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737091

Consórcio de freijó com guaraná e culturas de ciclo curto.
Provedor de dados: 14
Autores: CANTO, A. C. : BRIENZA JÚNIOR, S. : CORRÊA, M. P. F.
Para áreas de vegetação secundária sem expressão econômico-social, resultante de exploração predatória da floresta nativa, os sistemas agro-florestais aparecem como alternativa válida para sua recuperação e utilização racional. Com essa finalidade foi instalado no Campo Experimental da UEPAE de Manaus um experimento de consórcio de freijó (Cordia goeldiana Huber) com guaraná (Paullinia cupana var. sorbilis (Mart.) Ducke) e culturas de ciclo curto.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Freijó; Paullinia cupana var; Sorbilis; Brasil; Amazonas; Tropical rain forestry; Reclamation; Woody species.; Consorciação de Cultura; Cultivo Anual; Cordia Goeldiana; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Guaraná; Recuperação do Solo.; Agroforestry; Annuals; Environmental degradation; Forest trees; Intercropping; Multiple cropping.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665070

Árvores e palmeiras indicadas para a recuperação de áreas degradadas no Programa de Regularização Ambiental (PRA) na Bacia do Rio Acre.
Provedor de dados: 14
Autores: GUARINO, E. de S. G.; OLIVEIRA, L. C. de; SILVA, E. R. da; FARIAS, M. S.; PELLICCIOTTI, A. S.; THOMPSON, R. M.
A lei de proteção à vegetação nativa, n° 12.651/2012 (antigo Código Florestal Brasileiro), traz algumas inovações importantes para a proteção e conservação da biodiversidade da flora brasileira. Uma delas é a criação do cadastro ambiental rural (CAR), o qual tem como um dos objetivos apoiar o planejamento do imóvel rural, contribuindo para recuperar áreas degradadas, formar corredores ecológicos e conservar os demais recursos naturais (p. ex.: água e solo). Como resultado do CAR, todos os produtores rurais com passivos ambientais documentados após o dia 22 de julho de 2008 (data da regulamentação da lei de crimes ambientais) são obrigados a regularizar a situação de suas propriedades por meio do Programa de Regularização Ambiental (PRA). O Acre foi um dos...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cadastro Ambiental Rural (CAR); Programa de Regularização Ambiental (PRA); Rio Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Áreas rurales; Protección ambiental; Especies nativas; Degradación ambiental; Bosques primarios; Trabajo agrícola.; Políticas públicas; Proteção ambiental; Trabalhador rural; Propriedade rural; Cadastro rural; Degradação ambiental; Floresta nativa; Espécie nativa; Public policy; Environmental protection; Environmental degradation; Rural areas; Farm labor; Primary forests; Indigenous species.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1074720

Atividades de manejo da área experimental.
Provedor de dados: 14
Autores: GASPAROTTO, L.; ARAUJO, R. da C.; BUENO, N.
Sao apresentadas em consequencias cronologicas todas as atividades de manejo (preparo da area experimental e de mudas, plantio, adubacao e controle fitossanitario) efetuados no viveiro e area experimental para as diferentes especies que compoem o experimento, na EMBRAPA-CPAA (Manaus-AM).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Tropical rain forestry; Reclamation; Árvore Frutífera; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Forest trees; Fruit trees; Multiple cropping; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667449

Rekultivierung Degradierter, Brachliegender monokulturflachen in Ausgewogene mischkulturflachen unter Besonderer berucksichtigung Bodenbiologischer Faktoren.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23/2 (Hamburgo, Alemanha).
Manejo da área experimental. Estudos comparativos de espécies de plantas comuns em floresta secundária. Comportamento produtivo do cupuaçu (Theobroma grandiflorum) em sistemas agroflorestais com níveis de adubação. Efeito de nível de adubação sobre a produção de urucum (Bixa orellana) em um sistema agroflorestal. Efeito de níveis de adubação no crescimento e na produção de coqueiro (Cocos nucifera L.) em um sistema agroflorestal. Root distribution and root dynamics of useful tropical plants under agroforestry conditions. Theobroma grandiflorum (Willd. ex Spreng.) Schum., the cupuacu-tree: additional use option and agro-ecology. Dynamics of three vegetation types on the Shift-area at the Embrapa Amazônia Ocidental, Manaus. Spatial and temporal patterns of N...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Reclamation; Cultivo Multiplo; Deterioração do Solo; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Multiple cropping.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668178

Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 42-2.
In cooperation with the Embrapa Amazonia Ocidental in Manaus (Amazonas, Brasil) and three German projects (ENV 23, ENV 45, ENV 52), in the year 2000 we especially investigated (1) photosynthesis and carbohydrate allocation and (2) the plant-water relationships of the selected tree species. Special emphasis was given to the three species of the family Meliaceae. Comparative experiments have been done for monoculture, polycultures, enrichment cultures, and primary forests.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Recuperaco do solo; Agrofloresta; Especie florestal; Fotossinte; Brasil; Amazonas; Tropical rain forest; Reclamation; Sustainability; Species; Plant water relations; Andiroba; Árvore Florestal; Carapa Guianensis; Carboidrato; Cedrela Odorata; Cedro; Cultivo Multiplo; Desenvolvimento Sustentável; Deterioração do Solo; Floresta Tropical Úmida; Mogno; Relação Água-Planta; Swietenia Macrophylla; Uso da Terra; Agroforestry; Carbohydrates; Environmental degradation; Forest trees; Land use; Multiple cropping; Photosynthesis.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/670721

Recuperação de áreas degradadas e abandonadas, através de sistemas de policultivo.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23 (Manaus-AM).
Atividades de manejo da area experimental. Dados observados na Estacao de Climatologia do projeto SHIFT em 1996. Incidencias de doencas. Observacao e identificacao de insetos coletados em culturas da area experimental do projeto SHIFT. Avaliacao de cupuacu (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) do uso potential das sementes. Composicao de comunidades de fungos micorrizicos arbusculares em ecossistemas naturais e agricolas da Amazonia. Regeneracao da vegetacao espontanea na area experimental do SHIFT. Seringueira: crescimento em perimetro do caule. Comportamentos das especies florestais estabelecidas nos sistemas 2, 3 e 4. Efeito da adubacao e da inoculacao com fungos micorrizicos vesicular-arbuscular (FMVA) na producao da pupunha (Bactris...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Bertholletia escelsa; Sucessao; Brasil; Amazonas; Tropical rain forest; Reclamation; Bactris Gasipaes; Bixa Orellana; Carapa Guianensis; Cultivo Multiplo; Deterioração do Solo; Espécie; Essência Florestal; Floresta Tropical Úmida; Hevea; Micorriza; Performance; Recuperação do Solo; Schizolobium Amazonicum; Swietenia Macrophylla; Theobroma Grandiflorum; Vegetação; Agroforestry; Ecological succession; Environmental degradation; Forest trees; Multiple cropping; Soil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667332

Recuperação de área degradada com o uso de adubação química e de leguminosa em Irituia-PA.
Provedor de dados: 14
Autores: GALVÃO, E. U. P.; OLIVEIRA, R. F. de; SOUZA, F. R. S. de; SILVA, J. F. de A. F. da; LOPES, O. M. N.; MENEZES, A. J. A.
bitstream/item/48877/1/Boletim-Pesquisa-187-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Área degradada; Rendimento de cultivo; Uso de leguminosa; Irituia; Pará; Brasil; Reclamation.; Calcário; Fertilidade do Solo; Recuperação do Solo.; Amazonia; Crop yield; Environmental degradation; Legumes; Soil fertility.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376725

Tratamentos pré-germinativos para sementes de juqueri.
Provedor de dados: 14
Autores: FOWLER, J. A. P.; CARPANEZZI, A. A.
bitstream/CNPF-2009-09/16588/1/com_tec13.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Juqueri; Mimosa regnellii; Ecossistema degradado; Recuperação; Propagação.; Espécie nativa; Germinação; Semente.; Environmental degradation; Seed trees.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290838

Zoneamento das areas em processo de degradacao ambiental no tropico Semi-Arido do Brasil.
Provedor de dados: 14
Autores: RICHE, G. R.; SA, I. B.; FOTIUS, G. A.
Neste estudo buscou-se aportar uma parcela de conhecimento sobre as areas que se encontram em processo de degradacao ambiental no Nordeste semi-arido, evidenciando uma escala de degradacao que vai desde as areas com baixo nivel de degradacao as areas com nivel severo, com enfase a porcao mais seca, por esta se trata do ambiente mais fragil. Este estudo visa comtribuir com os setores de planejamento nos niveis regional, estadual e municipal, como uma nova forma de planejamento estrategico para regiao. Este estudo fundamenta-se na aplicabilidade do Zoneamento Agroecologico do Nordeste. Trabalho realizado pela EMBRAPA, atraves do CPATSA - Centro de Pesquisa Agropecuaria do Tropico Semi-Arido e da frente de solos Solos Nordeste CNPS.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Zoneamento; Avalaicao; Nordeste; Tropico Semi Arido; Valuation; Northeast; Semi-Arid Tropic; Degradação Ambiental; Ecologia; Solo; Vegetação; Environmental degradation; Brazil; Soil; Vegetation; Zoning.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133060

Um modelo digital de degradação hídrica aplicado ao diagnóstico ambiental: Agropólo submédio do rio São Francisco.
Provedor de dados: 14
Autores: MIRANDA, J. I.; SILVA, A. de S.; RODRIGUES, G. S.
O presente trabalho mostra um modelo digital sobre o estado da degradação hídrica no agropólo gerado com um SIG considerando três variáveis:as fontes pontuais de poluição, o índice de vegetação e a distância interfluvial.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Degradação hídrica; Água; Irrigação; Recurso Hídrico; Degradação Ambiental; Irrigation; Water; Irrigation; Water; Water resources; Environmental degradation.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112170

Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia.
Provedor de dados: 14
Autores: BAUCH, J.; DUNISCH, O.; GASPAROTTO, L.
In this project the influence of site conditions of degraded land areas on growth and wood formation of eight selected native tree species (Swietenia macrophylla King, Carapa guianensis, Cedrela odorata L., Dipteryx odorata Willd., Hymenaea courbaril L., Ceiba pentandra Gaertn., Virola surinamensis Warb., Tabebuia heptaphylla were investiated. In order to study the influence of the management of degraded areas on growth and wood formation of tree especies, the investigationson the relationship of enviromental input and tree growth were carried out in three different plantation systems (monoculture system, mixed culturesystem, enrichment of a 25-year-old secondary forrest established in 1992/19993 at the Embrapa Amazonia Ocidental, Manaus-AM (Brasil). Due...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Arvore produtora de madeira; Brasil; Reclamation; Woody trees; Sustainability.; Conservação do Solo; Desenvolvimento Sustentável; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Manejo; Reflorestamento.; Amazonia; Forest trees; Environmental degradation; Reforestation; Multiple cropping; Tropical rain forests.; Soil management.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668419

Effect of sea water and humidity on the tensile and compressive properties of carbon-polyamide 6 laminates
Provedor de dados: 5
Autores: Arhant, Mael; Le Gac, Pierre-yves; Le Gall, Maelenn; Burtin, Christian; Briancon, Christophe; Davies, Peter.
Thermoplastic matrix carbon fibre composites offer considerable potential for underwater applications. Various material options exist but there are questions concerning the tension/compressive behaviour and water sensitivity of the less expensive polymers (e.g. polyamides) for these applications. The aim of the current work is to model water diffusion and its effect on the mechanical properties of thick carbon fibre reinforced polyamide-6 composite cylinders immersed in sea water for deep sea applications. To provide the data for such a model, thin specimens (2 mm thick) have been aged under different humidity conditions and tested in tension and compression. As water enters the composite, a significant reduction in the laminate properties is observed. An...
Tipo: Text
Palavras-chave: Thermoplastic; Carbon fibres; Environmental degradation; Mechanical testing.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00368/47937/47971.pdf

Exploring durability of interfaces in flax fibre/epoxy micro-composites
Provedor de dados: 5
Autores: Le Duigou, Antoine; Davies, Peter; Baley, Christophe.
The influence of wet aging on the behaviour of flax/epoxy micro-composites composed of single flax fibres embedded in epoxy micro-droplets has been studied. Interfacial shear strength has been examined by debonding the micro-droplets. The apparent interfacial shear strength decreases with immersion time in water, dropping rapidly during the first 15 min of immersion then stabilizing. Drying samples after short immersion periods allows recovery of properties, indicating a plasticization mechanism. For longer immersion times irreversible degradation is observed. Scanning electron microscopy reveals fibre surface peeling, indicating that an internal interface within the fibre is weaker than the fibre/matrix interface after aging. A simple descriptive model...
Tipo: Text
Palavras-chave: Flax fibres; Environmental degradation; Fibre/matrix bond.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24829/23101.pdf

Seawater ageing of low styrene emission resins for marine composites: Mechanical behaviour and nano-indentation studies
Provedor de dados: 5
Autores: Maurin, Romain; Perrot, Yves; Bourmaud, Alain; Davies, Peter; Baley, Christophe.
Polyester resins are widely employed for pleasure boat construction. In order to satisfy new environmental legislation on styrene emissions resin suppliers have proposed modified formulations, but these show lower failure strains under tensile loading. This paper examines the influence of wet ageing on mechanical properties of low styrene polyester, together with standard polyester and vinyl ester resins, and their glass reinforced composites. Results are presented from accelerated ageing in natural sea water for nine months, at temperatures of 20, 40 and 60 degrees C. Nano-indentation was used to study local changes in the resin after ageing. The diffusion kinetics of the low styrene emission resins and their composites are similar to those for standard...
Tipo: Text
Palavras-chave: Polymer matrix composites (PMCs); Environmental degradation; Mechanical testing.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11104/7856.pdf

Vanished Lagoa Santa: rodent species loss in the last two centuries
Provedor de dados: 81
Autores: Boroni,Natália L; Pardiñas,Ulyses F. J; Lessa,Gisele.
The extensive work developed by Peter Lund and other naturalists in the nineteenth century in Lagoa Santa Karst has generated a large volume of data on the extinct and extant local fauna. Despite these classic pioneer works, little work has been done about the fauna currently present in the region. Therefore, this study analyzes the richness and diversity of the modern fauna of small rodents of the Lagoa Santa region and compares the results with the historical data of Lund and Winge. We collected owl pellets from calcareous caves in Lagoa Santa, Cordisburgo and Sete Lagoas. These pellets were divided in two categories for comparison: &amp;#8216;superficial&amp;#8217; (collected on the surface of the cave floor) and &amp;#8216;stratified&amp;#8217;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Environmental degradation; Herluf Winge; Owl pellets; Peter Lund.
Ano: 2018
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832018000100003

Marine Swimming–Related Illness: Implications for Monitoring and Environmental Policy
Provedor de dados: 20
Autores: Allen, P.; Wong, T.; Ford, T.; Epstein, P.R.; Henrickson, S.
There is increasing evidence that environmental degradation may be contributing to an increase in marine-related diseases across a wide range of taxonomic groups. This includes a growing number of reports of both recreational and occupational users of marine waters developing gastrointestinal, respiratory, dermatologic, and ear, nose, and throat infections. The duration and type of exposure, concentration of pathogens, and host immunity determine the risk of infection. Public health authorities may not be able to accurately predict the risk of waterborne disease from marine waters due to the limitations of conventional monitoring, as well as erroneous perceptions of pathogen life span in marine systems. Pathogens undetectable by conventional methods may...
Tipo: Journal Contribution
Palavras-chave: Environmental degradation; Diseases.
Ano: 2001
URL: http://hdl.handle.net/1834/708

Environmental Changes on Inhaca Island, Mozambique: Development versus Degradation?
Provedor de dados: 20
Autores: Muacanhia, T.
Inhaca archipelago is located ca. 32 km east of Maputo City, the capital of Mozambique. Inhaca Island (42.5 km2) and Portuguese Island (3.7 km2) constitute the small archipelago. Shoreline changes and sheet erosion are serious environmental problems affecting the archipelago today. Shorelines are constantly moving and changing. During rain season (October-March), strong winds, violent surf and stormy weather cause large powerful waves that induce changes on shorelines. As these waves pound the beach, sand erodes and is deposited offshore and the beach narrows. In dry season (April-September), waves and winds wash over the beach, bringing back the sand and gradually, the beach becomes wider. The major problems of Inhaca and Portuguese islands fringing...
Tipo: Working Paper
Palavras-chave: Environmental degradation.
Ano: 2003
URL: http://hdl.handle.net/1834/410

Coralline Algae, Important Coral-reef Builders Threatened by Pollution
Provedor de dados: 20
Autores: Mohammed, S.M.; Björk, M.; Björklund, M.; Semesi, A.
The release of inorganic nutrients into the sea by domestic sewage is a major threat to many marine systems. This eutrophication affects coral-reef organisms indirectly by increased growth of microalgae, leading to increased sedimentation, decreased light availibility, rapid growth of opportunistic macroalgae, etc. In this paper, we report a decrease in the cover of important group of coral-reef builders, the coralline algae. This decrease might be caused by the outlets of sewage water from Zanzibar town. Laboratory and field experiments show that both the growth rate and the calcification of these organisms are negatively affected by high phosphate levels, but not by nitrate or ammonia.
Tipo: Journal Contribution
Palavras-chave: Sewage; Algae; Eutrophication; Coral reefs; Nutrients; Environmental degradation; Http://aims.fao.org/aos/agrovoc/c_5274; Http://aims.fao.org/aos/agrovoc/c_34821.
Ano: 1995
URL: http://hdl.handle.net/1834/302

The Pacom Annual Report (2001/2002) To Start Ssc
Provedor de dados: 20
Autores: Odada, E.O.; OLago, D.O.
At the beginning of the new millennium Africa is characterized by two interrelated features: rising poverty levels and deepening environmental degradation. Africa is the poorest region of the world. It has the largest share of people living on less than US $1 per day. Almost 40% of the people in Africa live below the poverty line. At least one-third of Africa’s population is undernourished and that number is also growing. Africa is the only region of the world where poverty is projected to rise during this century if adequate measures are not urgently taken. Of the 45 countries on the UNDP list of Low Human Development Indicators, 35 are in Africa. Indeed two-thirds of the 48 countries included in the list of Least Developed Countries are in Africa....
Tipo: Report
Palavras-chave: Environmental degradation; Poverty; Http://aims.fao.org/aos/agrovoc/c_6151.
Ano: 2002
URL: http://hdl.handle.net/1834/294

Status report Kenya
Provedor de dados: 20
Autores: Obura, D.
Kenya s coastala population is expected to exceed 2 million people by the year 2000, with an annual growth rate of 3.7%, of which a large proportion is due to migration of people from other parts of Kenya. Increasing economic activity, due to shipping, freight handling and tourism, provides a strong draw for migrant workers, as well as conditions for environmental degradation. Marine resource use is largely unregulated, and the predominant near-shore coral reef activities include subsistence and small-scale commercial fishing and tourism.
Tipo: Journal Contribution
Palavras-chave: Environmental degradation; Socioeconomic environment; Http://aims.fao.org/aos/agrovoc/c_26824.
Ano: 1999
URL: http://hdl.handle.net/1834/488

False positives for tannin sorghum in non-tannin sorghum using the bleach test
Provedor de dados: 30
Autores: Awika, J. McDonough, C.M.
Palavras-chave: Organic acids; Pigments; Sorghum; Phenols; Anthocyanins; Aromatic compounds; Sampling; Grain; Environmental degradation; Environmental factors.
Ano: 2005
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3240

A Intensidade da Exploração Agropecuária como Indicador da Degradação Ambiental na Região dos Cerrados, Brasil
Provedor de dados: 31
Autores: Cunha,   Nina Rosa da Silveira; Lima,   Joao Eustaquio de; Gomes,   Marilia Fernandes Maciel; Braga,   Marcelo Jose.
Being constituted as the largest risk factor and effective degradation to the Savannah, the man’s intervention in the nature and, especially, the agricultural exploration require analysis and better monitoring. This work aims to analyze the relationship between the agricultural exploration and the environmental degradation in the area of the Savannahs, in 1995-1996. In particular, it is intended, to use multivariate statistical analysis, to verify the factors associated with the intensity of farming predominant in the determination of the degradation pattern, and to obtain indexes of exploration intensity to make possible to categorize and to group the microrregions in terms of degradation potential. The results showed that the intensity of the...
Tipo: Journal Article
Palavras-chave: Environmental degradation; Intensity of agricultural exploration; Savannah; Factorial analysis; Index of environmental degradation.; Agribusiness; Q50.
Ano: 2008
URL: http://purl.umn.edu/61241

The lower Krishna Basin trajectory: relationships between basin development and downstream environmental degradation
Provedor de dados: 31
Autores: Venot,   Jean-Philippe; Sharma,   Bharat R.; Rao,   Kamineni V.G.K.
Basin water development and rural dynamics in the Krishna Basin have led to a degradation of downstream ecosystems manifesting itself by salinizing soil and groundwater, increasing pollution, disappearing mangroves and desiccating wetlands. Reversing this evolution requires the formal recognition of the environment as a water user in its own right and the implementation of an environmental water provision. This provision should be based on a two-tier allocation system with assured discharges in the irrigation canals of the delta and to the ocean. This will lead to further commitment of water resources but this is needed to reconcile the social, economic and environmental objectives of a sustainable development. Other measures facilitating integrated...
Tipo: Report
Palavras-chave: River basin development; Lakes; Environmental degradation; Ecosystems; Mangroves; Water allocation; Groundwater; Water quality; Salinity; Irrigated farming; Institutions; Irrigation canals; Rural development; Agribusiness; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Risk and Uncertainty.
Ano: 2008
URL: http://purl.umn.edu/44515

Environmental Degradation and Intrahousehold Labour Time Allocations in Rural South Pare Highlands, Tanzania
Provedor de dados: 31
Autores: Dimoso,   R.; Antonides,   G.
We assess the influence of environmental degradation on intrahousehold labour time allocations in rural south Pare, Tanzania. We distinguished three types of areas, namely, severely degraded, medium degraded and non-degraded environmental conditions. The unit of analysis is the household composed of both parents and at least one schoolchild. The results, among others, show that environmental products collection and/or grazing time by the household members is, almost in all groups and in accordance to gender-biased activity, significantly influenced by the environmental conditions.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental degradation; Intrahousehold labour time allocations; Rural south Pare highlands.; Labor and Human Capital.
Ano: 2008
URL: http://purl.umn.edu/44387

A framework for analyzing socioeconomic, health and environmental impacts of wastewater use in agriculture in developing countries
Provedor de dados: 31
Autores: Hussain,   Intizar; Raschid,   Liqa; Hanjra,   Munir A.; Marikar,   Fuard; van der Hoek,   Wim.
Tipo: Working or Discussion Paper
Palavras-chave: Waste water management; Environmental degradation; Waterborne diseases; Water quality; Irrigation practices; Aquaculture; Economic analysis; Social aspects; Health; Environmental aspects; Agriculture; Developing countries; Policy; Agricultural and Food Policy; Agricultural Finance; Environmental Economics and Policy; Health Economics and Policy; Land Economics/Use; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92775

PROCESSOS PRODUTIVOS E DEGRADAÇÃO AMBIENTAL: uma análise comparativa em duas localidades no oeste do estado de Mato Grosso.
Provedor de dados: 31
Autores: Kirsch,   Heitor Marcos.
O estudo abordado neste artigo se propõe em verificar a relação que se estabelece entre o processo de degradação ambiental e o padrão de desenvolvimento produtivo que foi implantado no oeste do estado de Mato Grosso, tomando como referência agricultores familiares e patronais nas localidades de Pontes e Lacerda e Campos de Júlio, respectivamente. A limitada eficácia no controle dos processos de degradação ambiental relacionados com as ações do desmatamento e das queimadas encontram-se vinculados com a abordagem linear e disciplinar com que são tratados. Os resultados observados sugerem que o processo de modificação sobre o ambiente físico que se verifica nestas localidades é influenciado por uma associação positiva que os agricultores em ambos os sistemas...
Tipo: Conference Paper or Presentation
Palavras-chave: Sistemas produtivos; Degradação ambiental; Abordagem territorial; Production systems; Environmental degradation; Territorial approach; Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/108081

Cost-Effectiveness of Water Conservation Measures: A Multi-level Analysis with Policy Implications
Provedor de dados: 31
Autores: Blanco-Gutierrez,   Irene; Varela-Ortega,   Consuelo; Flichman,   Guillermo.
Groundwater in Spain, as in other arid or semiarid countries worldwide, has been intensely used for the expansion of irrigated agriculture. This booming development has induced a remarkable socioeconomic development in many rural areas but has produced far-reaching environmental problems. In the Spanish Western La Mancha Aquifer, the excessive, and sometimes illegal, water abstraction for irrigation agriculture has resulted in the Aquifer’s overexploitation and has been responsible of the degradation of the associated wetlands “Tablas de Daimiel”, an internationally reputed, Ramsarnominated aquatic ecosystem. To undertake this analysis, a mathematical programming model has been developed to simulate farmers’ behaviour and their responses to different water...
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental degradation; Water policies; Cost-effectiveness analysis; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/43846

Institutions for integrated water resources management in upland watersheds of Southeast Asia: A comparative analysis of Thailand and Lao PDR.
Provedor de dados: 31
Autores: Kurian,   Mathew.
Tipo: Working or Discussion Paper
Palavras-chave: Institutions; Decentralization; Watersheds; Food security; Domestic water; Environmental degradation; Income; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92521

Desenvolvimento econômico e Desmatamento na Amazônia Legal: Uma Análise Econométrica
Provedor de dados: 31
Autores: Gomes,   Sergio Castro; Braga,   Marcelo Jose.
O objetivo deste trabalho é testar empiricamente a hipótese ambiental de Kuznets aplicada ao relacionamento entre a taxa de desmatamento e a renda per capita nos estados da Amazônia Legal, além analisar o comportamento da taxa de desmatamento e da dinâmica populacional no período de 1990-2004. O teste econométrico utilizado para avaliar a hipótese ambiental de Kuznets é baseado na estimação de dois modelos específicos de regressão, o primeiro representa uma função quadrática e o segundo uma função cúbica, em que a taxa de desmatamento é a variável explicada, e a renda per capita, a densidade demográfica e o ano são as explicativas. Na estimação dos parâmetros utilizou-se a modelagem de dados em painel para efeitos aleatórios. Os resultados mostram que para...
Tipo: Conference Paper or Presentation
Palavras-chave: Desmatamento; Renda per capita; Dados de painel; Densidade demográfica; Deforestation; Per capita income; Environmental degradation; Population density; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/103095

Yellow river comprehensive assessment: Basin features and issues – Collaborative research between International Water Management Institute (IWMI) and Yellow River Conservancy Commission (YRCC)
Provedor de dados: 31
Autores: Zhu,   Zhongping; Giordano,   Mark; Cai,   Ximing; Molden,   David J.; Hong,   Shangchi; Zhang,   Huiyan; Lian,   Yu; Li,   Huian; Zhang,   Xuecheng; Zhang,   Xinghai; Xue,   Yunpeng.
Tipo: Working or Discussion Paper
Palavras-chave: Flood control; Water scarcity; Environmental degradation; Groundwater; Social aspects; River basin development; Water use efficiency; Crop production; Wetlands; Water pollution; Water policy; Reforms; Water quality; Flood plains; Crop Production/Industries; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2003
URL: http://purl.umn.edu/92661

Efeito da alteração ambiental sobre comunidades de Odonata em riachos de Mata Atlântica de Minas Gerais, Brasil
Provedor de dados: 104
Autores: Ferreira-Peruquetti,Patrícia Santos; Marco Jr.,Paulo De.
The effect of riparian deforestation and stream impoundments on an odonate community was studied in áreas of surviving Atlantic forest in Viçosa and in Rio Doce State Park (PERD), Marliéria, Minas Gerais, Brazil. During 1997 16 species of Libellulidae, 4 Coenagrionidae, 2 Gomphidae, 2 Calopterygidae, 1 Megapodagrionidae, 1 Aeshnidae and 3 Protoneuridae were collected. In Viçosa, the association of sampled odonates with lotic or lentic systems, and in PERD for areas with or without riparian vegetation were compared. The results suggest that although overall odonate taxonomic richness is high in areas without riparian vegetation. Likely, because productivity increase of such areas and its invasion by lentic Odonata species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Odonata community; Deforestation; Atlantic Forest; Environmental degradation; Riparian vegetation.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000200002

POTENTIAL RESPONSE OF CORAL REEF'S FUNCTIONAL STRUCTURE AND SNAPPER ABUNDANCE TO ENVIRONMENTAL DEGRADATION IN SAN ANDRES ISLAND, COLOMBIA
Provedor de dados: 37
Autores: GONZÁLEZ-GAMBOA,Isabella; SANTOS-MARTÍNEZ,Adriana; HERRERA-MARTÍNEZ,Yimy.
ABSTRACT To determine the coral reefmorpho-functional structure of San Andrés, regarding functional benthic diversity and fish (Lutjanidae), we evaluated the condition of the coral structure on the leeward side of the island, which is an area impacted by tourism, through diving and fishing. Three sampling sites were evaluated during two years recording the distribution of benthic organisms, environmental variables and Snappers density (Lutjanidae). A low density of Lutjanusjocu and Ocyurus chrysurus was found, with a high density ofjuveniles of L. apodus and L. mahogoni, which showed a preference for reefs with submassive and brain corals. Algae especially Macroalgae and octocorals were those with the greatest coverage in the reefs, followed by inert...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caribbean Sea; Environmental degradation; Lutjanidae; Reef complexity.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000100086

Anurans of a threatened savanna area in western Brazil
Provedor de dados: 49
Autores: Sugai,José Luiz Massao Moreira; Terra,Juliana de Souza; Ferreira,Vanda Lúcia.
The Upper Paraguay River Basin is located in the center of South America and harbors one of the largest wetland in the world, known as Pantanal. This floodplain is surrounded by uplands, which presently have most of their area converted into pastures or monocultures, besides being poorly known scientifically. Also, most of these upland areas are considered conservation priorities. Here we present a list of anuran species from a savanna-like area (municipality of Camapuã, state of Mato Grosso do Sul, Brazil) inserted in the uplands surrounding the Pantanal floodplain, in the Upper Taquari River sub-basin, and evaluate the effectiveness of the sampling effort. Data were obtained through active searches in 22 plots in aquatic habitats, during the rainy season...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Veredas; Upper Taquari River sub-basin; Biological inventories; Environmental degradation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000100201

The fish fauna of the Jacaré-Guaçu River basin, Upper Paraná River basin
Provedor de dados: 49
Autores: Esguícero,André Luiz Henríques; Arcifa,Marlene Sofia.
This study aimed to evaluate the fish fauna composition and distribution in different environments, up- and downstream the Gavião Peixoto Dam, in the Jacaré-Guaçu River basin. Most of the sampled ichthyofauna is autochthonous, and the majority of the species belongs to the orders Characiformes and Siluriformes. The order Characiformes comprised most of the specimens caught, Astyanax altiparanae being the most abundant species. All the studied environments were characterized by the massive occurrence of accidental species and low similarity between their ichthyofauna. In general, a greater number of species and higher values of the diversity index were observed downstream of the dam. The fish diversity in the studied habitats was positively correlated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical fishes; Stream ecology; Communities' structure; Freshwater fishes; Environmental degradation.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000100010

Management of the environmental restoration of degraded areas
Provedor de dados: 52
Autores: Araujo,Izabel Cristina Leinig; Dziedzic,Maurício; Maranho,Leila Teresinha.
The aim of this work was to study ecotechnology for the management of degraded areas originally covered by the Atlantic Rainforest and located at the coordinates 25º31'50''S, 9º09'30''W. The area included 12 islands, each consisting of six jute bags with 20 kg of substrate (cattle manure and soil transposed from forest fragments). In six of these bags, native plants and seeds were also included. Six additional islands were selected randomly in the vicinity as the control. The process of evaluation was monitored through the chemical and granulometric soil analysis and surveys of survival, biometrics, floristic and phytosociological vegetation. An improvement in soil properties was observed where the model was implemented, which could be attributed to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Restoration ecology; Environmental degradation; Soil management; Revegetation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000200018