Consulta: subjectFacets:"Forests"
Registros recuperados: 52
Data/hora: 16/06/2024 11:20:49

A QUESTÃO AMBIENTAL: FLORESTAS E BIODIVERSIDADE
Provedor de dados: 25
Autores: Bertolino, Maria Lúcia.
This work has as objective to argue the environmental question concerning the conservation of the forests and biodiversity. One major issue in this question is that the Brazilian forest sector contributes with an important parcel for the Brazilian economy, generates products for direct consumption or for exportation, generates taxes and jobs for the population and, still, bring positive and negative consequences in the conservation and preservation of both renewable and not renewable natural resources. The forest economy has been, historically, responsible for one of the five largest positive commercial balances of the country and still it supplies 85% of all the products of forest origin found in the national market, therefore, alleviating the pressure on...
Tipo: Article
Palavras-chave: Preservation; Biodiversity; Forests.
Ano: 2007
URL: http://hdl.handle.net/2315/106

Diversity Of Saprotrophic Anamorphic Ascomycetes From Native Forests In Argentina: An Updated Revi
Provedor de dados: 66
Autores: Allegrucci,Natalia; Cabello,Marta N; Arambarri,Angélica M.
Eight regions of native forests have been recognized in Argentina: Chaco forest, Misiones rain forest, Tucumán-Bolivia forest (Yunga), Andean-Patagonian forest, "Monte", "Espinal", fluvial forests of the Paraguay, Paraná and Uruguay rivers, and "Talares" in the Pampean region. We reviewed the available data concerning biodiversity of saprotrophic microfungi (anamorphic Ascomycota) in those native forests from Argentina, from the earliest collections, done by Spegazzini, to present. Among the above mentioned regions most studies on saprotrophic microfungi concentrates on the Andean-Patagonian forest, the fluvial forests of the Paraguay, Paraná and Uruguay rivers and the "Talares", in the Pampean region. There are only a few records of fungal species in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anamorphic Ascomycota; Argentina; Biodiversity; Forests.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932009000100007

Impacto del programa de servicios ambientales hidrológicos en tres ejidos de Texcoco, México.
Provedor de dados: 32
Autores: Ruíz Jiménez, Mónica.
El objetivo de la presente investigación fue identificar el impacto del Programa de Pago por Servicios Ambientales Hidrológicos (PSAH) desde la percepción de los propios beneficiarios del programa en tres ejidos forestales del municipio de Texcoco que recibieron apoyos de la Comisión Nacional Forestal (CONAFOR) del año 2005 al 2010. El estudio también incluyó una encuesta entre la población de Texcoco para identificar la disposición a pagar (DAP) a los dueños de los bosques a fin de que sigan conservándolos y proveyendo de los servicios ambientales hidrológicos. Los resultados indican que los beneficiarios no perciben impactos positivos directos en su bienestar social y económico porque los recursos recibidos del PSAH se destinaron a obras de conservación...
Palavras-chave: Servicios ambientales; Bosque; Conservación pasiva; Ejidos forestales; Impactos; Ecosystem services; Forests; Passive conservation; Forest ejidos; Impacts; Desarrollo Rural; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2174

Quantifying the Road-Effect Zone: Threshold Effects of a Motorway on Anuran Populations in Ontario, Canada
Provedor de dados: 7
Autores: Eigenbrod, Felix; Geomatics and Landscape Ecology Research Laboratory, Department of Biology, Carleton University, Ottawa, Canada; felix.eigenbrod@gmail.com; Hecnar, Stephen J.; Department of Biology, Lakehead University, Thunder Bay, Ontario, Canada; shecnar@lakeheadu.ca; Fahrig, Lenore; Geomatics and Landscape Ecology Research Laboratory, Department of Biology, Carleton University, Ottawa, Ontario Canada; lfahrig@ccs.carleton.ca.
Tipo: Peer-Reviewed Reports
Palavras-chave: Accessible habitat; Amphibian decline; Anuran populations; Ecological thresholds; Forests; Fragmentation; Habitat loss; Piecewise regression; Road ecology.
Ano: 2009

Ecological Sustainability of Birds in Boreal Forests
Provedor de dados: 7
Autores: Niemi, Gerald; University of Minnesota; gniemi@d.umn.edu; Hanowski, JoAnn; University of Minnesota; jhanowsk@sage.nrri.umn.edu; Helle, Pekka; Finnish Game and Fisheries Research Institute; meltausrta@HELSINKI.RKTL.fi; Howe, Robert; University of Wisconsin; hower@uwgb.wi.edu; Venier, Lisa; Canadian Forest Service; lvenier@nrcan.gc.ca; Welsh, Daniel; Canadian Forest Service; dwelsh@AM.NCR.FORESTRY.CA.
We review characteristics of birds in boreal forests in the context of their ecological sustainability under both natural and anthropogenic disturbances. We identify the underlying ecological factors associated with boreal bird populations and their variability, review the interactions between boreal bird populations and disturbance, and describe some tools on how boreal bird populations may be conserved in the future. The boreal system has historically been an area with extensive disturbance such as fire, insect outbreaks, and wind. In addition, the boreal system is vulnerable to global climate change as well as increasing pressure on forest and water resources. Current knowledge indicates that birds play an important role in boreal forests, and...
Tipo: Peer-Reviewed Reports
Palavras-chave: Birds; Boreal; Conservation; Disturbance; Forests; Forestry; Natural resources; Nearctic; Palearctic; Sustainability; Trends.
Ano: 1998

Social-ecological Resilience of a Nuosu Community-linked Watershed, Southwest Sichuan, China
Provedor de dados: 7
Autores: Urgenson, Lauren S; School of Forest Resources, University of Washington; lsu@u.washington.edu; Hagmann, R. Keala; School of Forest Resources, University of Washington ; hokulea@u.washington.edu; Henck, Amanda C; Earth and Space Sciences, University of Washington; achenck@u.washington.edu; Harrell, Stevan; Anthropology, University of Washington; stevehar@u.washington.edu; Hinckley, Thomas M; School of Forest Resources, University of Washington ; hinckley@u.washington.edu; Shepler, Sara Jo; School of Forest Resources, University of Washington; coffee-punk@hotmail.com; Grub, Barbara L.; Anthropology, University of Washington; blg@u.washington.edu; Chi, Philip  M; ; philmcuw@yahoo.com.
Farmers of the Nuosu Yi ethnic group in the Upper Baiwu watershed report reductions in the availability of local forest resources. A team of interdisciplinary scientists worked in partnership with this community to assess the type and extent of social-ecological change in the watershed and to identify key drivers of those changes. Here, we combine a framework for institutional analysis with resilience concepts to assess system dynamics and interactions among resource users, resources, and institutions over the past century. The current state of this system reflects a legacy of past responses to institutional disturbances initiated at the larger, national system scale. Beginning with the Communist Revolution in 1957 and continuing through the next two...
Tipo: Peer-Reviewed Reports
Palavras-chave: China; Forests; Institutions; Nuosu; Resilience; Sichuan; Yi.
Ano: 2010

Integrating Ecological and Social Ranges of Variability in Conservation of Biodiversity: Past, Present, and Future
Provedor de dados: 7
Autores: Duncan, Sally L.; Institute for Natural Resources, Oregon State University; Sally.Duncan@oregonstate.edu; McComb, Brenda C; University of Masschusetts-Amherst; brenda.mccomb@oregonstate.edu; Johnson, K. Norman; College of Forestry, Oregon State University; norm.johnson@oregonstate.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Forests; Future range of variability; Historical range of variability; Social acceptability; Social range of variability.
Ano: 2010

REDD+ and Human Rights: Addressing Synergies between International Regimes
Provedor de dados: 7
Autores: Savaresi, Annalisa; School of Law, University of Edinburgh; annalisa.savaresi@ed.ac.uk.
The making of the REDD+ mechanism in the framework of the United Nations Framework Convention on Climate Change (UNFCCC) has raised specific concerns on how to reconcile incentives for forest carbon sequestration with the protection of the rights of the numerous communities that rely upon forests for their livelihood, shelter, and survival. Although the nascent REDD+ mechanism provides an opportunity to provide multiple benefits, the design of a framework to secure such benefits and avoid perverse outcomes has proven complex. I provide an overview of progress toward the establishment of such framework, arguing that concerns over the social impact of REDD+ activities may be addressed by resorting to clearer and stronger links with human rights instruments.
Tipo: Peer-Reviewed article
Palavras-chave: Climate change; FLEGT; Forests; Human rights; Nagoya Protocol; REDD+.
Ano: 2013

Understanding the Risk to Neotropical Migrant Bird Species of Multiple Human-Caused Stressors:  Elucidating Processes Behind the Patterns.
Provedor de dados: 7
Autores: Hames, Ralph S.; Cornell Laboratory of Ornithology; rsh5@cornell.edu; Lowe, James D.; Cornell Laboratory of Ornithology; jdl6@cornell.edu; Swarthout, Sara Barker; Cornell Laboratory of Ornithology; sb65@cornell.edu; Rosenberg, Kenneth V.; Cornell Laboratory of Ornithology; kvr2@cornell.edu.
Ubiquitous human-caused changes to the environment act as multiple stressors for organisms in the wild, and the effects of these stressors may be synergistic, rather than merely additive, with unexpected results. However, understanding how focal organisms respond to these stressors is crucial for conservation planning for these species. We propose a paradigm that alternates extensive, broadscale data collection by volunteer collaborators to document patterns of response, with intensive fine-scale studies by professional researchers, to elucidate the processes underlying these patterns. We demonstrate this technique, building on our existing work linking patterns of population declines in the Wood Thrush (Hylocichla mustelina) to synergistic effects of acid...
Tipo: Peer-Reviewed Reports
Palavras-chave: Multiple scales; Synergistic effects; Citizen science; Habitat fragmentation; Acid rain; Forests; Anthropogenic change; Soil; Calcium; Invertebrates.
Ano: 2006

Comparação entre espécies florestais nativas em Foz do Iguaçu, PR.
Provedor de dados: 14
Autores: CARVALHO, P. E. R.; ZELAZOWSKI, W. H.; KAMINSKI, N. L.; LOPES, G. L.
bitstream/item/101393/1/PA-1999-Carvalho-ComparacaoEspeciesFlorestais.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Comportamento; Espécie florestal; Foz do Iguaçu; Behaviour.; Reflorestamento; Silvicultura.; Forests; Reforestation; Silviculture.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290786

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) ? estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Árvore; Espaçamento; Floresta; Lavoura; Pecuária; Produtor; Forests; Livestock; Tillage; Trees.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124761

Aspectos químicos da fertilidade de um solo sob floresta primaria de terra firme do Estado do Amapá.
Provedor de dados: 14
Autores: LIMA, J. A. de S.; GAZEL FILHO, A. B.
Neste trabalho são relatados alguns indicadores da fertilidade do solo. Para tanto, utilizaram-se as parcelas permanentes já demarcadas para estudos de ecologia e manejo florestal.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fertilidade; Floresta; Solo.; Fertilizers; Forests; Soil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344123

Utilização de lodo de esgoto aeróbico e calado em florestas.
Provedor de dados: 14
Autores: LOURENCO, R. S.
bitstream/CNPF-2009-09/16603/1/com_tec18.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Lodo de esgoto.; Solo; Nutrição; Floresta.; Forests; Sewage sludge.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290855

Métodos para produção de sementes florestais nativas.
Provedor de dados: 14
Autores: BIANCHETTI, A.
Introdução; Extração de sementes; Embalagem e armazenamento de sementes; Análise das sementes em laboratorio.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Production.; Floresta; Semente.; Produção; Forests; Seeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344604

Distribuição diametrica de espécies de angelim em uma floresta primária de terra firme do Estado do Amapá.
Provedor de dados: 14
Autores: LIMA, J. A. de S.; GAZEL FILHO, A. B.
As florestas de terra firme do Amapá apresentam expressiva riqueza de espécies madeiraveis de alta densidade.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Floresta; Madeira.; Forests; Wood.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344127

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) - estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Árvore; Lavoura; Pecuária; Floresta; Espaçamento; Produtor; Trees; Tillage; Forests; Livestock.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124740

Estudos microclimáticos: radiação global em áreas de floresta e regeneração natural em Capitão-Poço, PA.
Provedor de dados: 14
Autores: BASTOS, T. X.; DINIZ, T. D. de A. S.
bitstream/item/60192/1/CPATU-PA137.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Capitão Poço; Pará; Brasil.; Floresta; Microclima; Regeneração Natural.; Radiação Solar; Amazonia; Forests; Natural regeneration; Microclimate; Solar radiation.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383519

Pesquisa &amp; desenvolvimento - 2001: programas, projetos e subprojetos.
Provedor de dados: 14
Autores: MARQUES, L. C. T.; ALVES, S. de M.
bitstream/item/57536/1/Oriental-Doc76.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pesquisa e desenvolvimento; Agropecuária.; Floresta; Instituição de Pesquisa; Projeto de Pesquisa.; Forests; Research; Research institutions; Research projects.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378205

Isotopic composition of soils and plants in a gallery forest of cerrado biome: effect of topographic gradient.
Provedor de dados: 14
Autores: PARRON. L. M.; BUSTAMANTE, M. M. C.; CAMARGO, P.; PRADO, C. L.; MARTINELLI, L. A.
bitstream/CPAC-2009/25328/1/p2004_45.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Mata de galeria.; Cerrado; Essência Florestal; Química do Solo; Topografia.; Forests; Soil chemistry; Topography; Woody plants.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568331

Relatório técnico anual do Centro de Pesquisa Agropecuária dos Cerrados 1980-1981.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF).
bitstream/item/131340/1/relatorio-05.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: CPAC; Aspecto socio-economico; Fonte alternativa; Plant diseases; Natural pastures; Feed crops; Management; Socioeconomic organization; Diffusion of research; Flood plains.; Agricultura; Conservação; Cerrado; Deficiência Hídrica; Difusão de Tecnologia; Energia; Doença de Planta; Fertilidade; Floresta; Manejo; Irrigação; Mecanização; Pesquisa; Pastagem Nativa; Planta Forrageira; Recurso Hídrico; Recurso Natural; Sistema de Produção; Várzea.; Solo; Agriculture; Forests; Energy; Irrigation; Research; Mechanization; Natural resources; Soil conservation; Soil management; Soil water deficit; Soil; Technology; Soil fertility; Water resources.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548809

Uso de curva de potencia na determinacao de series relativas continuas de forma para especies florestais.
Provedor de dados: 14
Autores: GUIMARAES, D. P.
bitstream/item/98720/1/bolpd-14.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Povoamento; Volume tables; Species.; Araucária Angustifólia; Eucalipto; Espécie; Eucalyptus Grandis; Floresta; Modelo Matemático; Volume.; Forests; Mathematical models.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549442

Desrama artificial de florestas plantadas de eucalipto.
Provedor de dados: 14
Autores: PULROLNIK, K.; REIS, G. G. dos; REIS, M. das G. F. dos.
bitstream/CPAC-2010/31533/1/doc-249.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desrama artificial; Floresta; Eucalipto; Forests; Eucalyptus.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697020

Viabilidade econômica de plantios florestais solteiros e de sistemas agroflorestais.
Provedor de dados: 14
Autores: RODIGHERI, H. R.
bitstream/CNPF-2009-09/16597/1/com_tec22.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Viabilidade econômica; Plantio florestal; Sistema agroflorestal.; Produção; Rendimento; Agroforestry; Forests; Viability.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290848

Produção de sementes florestais.
Provedor de dados: 14
Autores: BIANCHETTI, A.
Introdução; Características botanicas; Identificação e marcação de matrizes porta-sementes; Seleção de árvores matrizes; Manejo das árvores matrizes porta-sementes; Tipos de áreas de produção de sementes; Planejamento de uma colheita de sementes; Maturação de sementes; Colheita; Extração de sementes; Embalagem e armazenamento de sementes; Controle de qualidade de sementes; Bibliografia consultada.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Armazenamento; Floresta; Produção; Semente.; Forests; Storage.; Seeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344608

Resumos expandidos...
Provedor de dados: 14
Autores: SIMPÓSIO SILVICULTURA NA AMAZÔNIA ORIENTAL: CONTRIBUIÇÕES DO PROJETO EMBRAPA/DFID, 1999, Belém, PA.
bitstream/item/57601/1/CPATU-Doc123.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Manejo florestal; Brasil; Forestry operation.; Análise Econômica; Ecologia Florestal; Exploração Florestal; Floresta; Mecanização; Semente Florestal; Silvicultura.; Amazonia; Economic analysis; Forest ecology; Forest management; Forests; Mechanization; Silviculture.; Seeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/393767

Distribuição diametrica do número de árvores e da área basal de uma floresta primaria de terra firme no Amapá.
Provedor de dados: 14
Autores: LIMA, J. A. de S.; LOPES FILHO, R. P.; ALMEIDA, W. da C.; GUIMARÃES, E. G. T.
As florestas tropicais estão entre os ecossistemas mais complexos conhecidos. Apesar da aparente desordem de seus componentes, encontram-se padrões mensuraveis de dinamica, composicao e estruturas. enquanto estes, entre outros aspectos, detalham riqueza e diversidade floristica, indicadores físicos da massa arborea e ocupação horizontal e vertical do espaço, em termos de dinamica, destacam-se, mortalidade e o crescimento da massa arborea.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Árvore; Floresta.; Forests; Trees.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344141

Espécies florestais consorciadas com guariroba (Syagrus oleracea Becc.) e café em áreas de cerrado.
Provedor de dados: 14
Autores: MELO, J. T. de; SAMPAIO, J. B. R.; GUIMARÃES, D. P.
bitstream/CPAC-2009/25315/1/p2004_35.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Sistema agroflorestal; Coffee.; Café; Cerrado; Consorciação de Cultura; Essência Florestal; Guariroba.; Agroforestry; Forests; Mixed cropping.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568316

Memórias...
Provedor de dados: 14
Autores: WORKSHOP SOBRE CONSERVAÇÃO E USO DE RECURSOS GENÉTICOS FLORESTAIS, 2000, Paranaguá.
Conferência 1: O Histórico da introdução de espécies florestais de interesse econômico e o estado de sua conservação no Brasil: silvicultura moderna e silvicultura tradicional. Conferência 2: O Programa Nacional de Pesquisa Florestas e suas ações pertinentes à conservação de recursos genéticos florestais. Painel 1: Cooperação internacional em recursos genéticos florestais; estratégias para conservação e uso; Painel 2: Integração dos setores público e privado na conservação de recursos genéticos florestais; Painel 3: Financiamento de projetos de conservação de recursos genéticos florestais; Relatórios de Grupos de Trabalho: Amostragem de materiais genéticos para conservação visando ao seu uso futuro; Estratégia de conservação de recursos genéticos...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Conservação; Floresta; Recurso Genético.; Forests; Genetic resources.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/278736

Mesofauna do solo em ecossistemas de floresta primaria e de cultivos de seringueira e de cacaueiro no município de Capitão Poço, Pará.
Provedor de dados: 14
Autores: TEIXEIRA, L. B.; SILVA, A. de B.; OLIVEIRA, R. P. de.
bitstream/item/60321/1/CPATU-PA166.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Fauna do solo; Floresta primária; Theobroama cacao; Capitão Poço; Brasil.; Cacau; Hevea Brasiliensis; Seringueira.; Amazonia; Forests; Soil fauna.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374306

Plan directeur de développement forestier pêche et aquaculture continentales
Provedor de dados: 20
Autores: Diouf, P.S.; Kebe, M.; Le Reste, L.; Bousso, T.; Diadhiou, H.D.; Gaye, A.B.
FAO, Rome (Italie);Ministère du Développement et de l'Hydraulique, Dakar (Sénégal)
Tipo: Book
Palavras-chave: Development potential; Fisheries; Aquaculture; Marketing; Development projects; Fish consumption; Hydrology; Inland water environment; Aquatic environment; Forests; Socioeconomic aspects; Climatic data; Natural resources; Fresh water; Natural resources; Fisheries; Aquaculture; Marketing; Development projects; Forests; Climatic data; Hydrology; Inland water environment; Aquatic environment; Http://aims.fao.org/aos/agrovoc/c_5091; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_2229; Http://aims.fao.org/aos/agrovoc/c_3062; Http://aims.fao.org/aos/agrovoc/c_29553; Http://aims.fao.org/aos/agrovoc/c_3731; Http://aims.fao.org/aos/agrovoc/c_3875; Http://aims.fao.org/aos/agrovoc/c_554.
Ano: 1991
URL: http://hdl.handle.net/1834/2886

Eastern Africa Coastal Forest Programme
Provedor de dados: 20
Autores: Younge, A.
The eastern African coastal forest ecoregion is recognised as one of Africa’s centres of species endemism, and is distributed over six countries (Somalia, Kenya, Tanzania, Mozambique, Zimbabwe and Malawi). Most is found in Kenya, Tanzania and Mozambique, which form our focal region. The coastal forests are fragmented, small and surrounded by poor communities that have a high demand for land and forest resources. Although coastal forests have significant cultural and traditional values for local communities, they do not receive adequate support from the relevant government authorities and international conservation institutions. WWF has over 10 years research and conservation experience on the eastern Africa coastal forests in Kenya, Tanzania and Mozambique...
Tipo: Report
Palavras-chave: Coastal zone; Forests; Endemic species; Coastal area; Ecological zones; Http://aims.fao.org/aos/agrovoc/c_9000021; Http://aims.fao.org/aos/agrovoc/c_15704.
Ano: 2002
URL: http://hdl.handle.net/1834/307

Assessment of CBNRM Best Practices in Tanzania.
Provedor de dados: 20
Autores: Kajuni, A.; Alcorn, J.; Winterbottom, B.
Tipo: Report
Palavras-chave: Coastal zone; Water resources; Community participation; Pastoral society; Wildlife; Forests; Http://aims.fao.org/aos/agrovoc/c_37662; Http://aims.fao.org/aos/agrovoc/c_28741; Http://aims.fao.org/aos/agrovoc/c_8389; Http://aims.fao.org/aos/agrovoc/c_3062.
Ano: 2002
URL: http://hdl.handle.net/1834/929

Macroeconomics and Forest Sustainability in the Developing World
Provedor de dados: 31
Autores: Sedjo,   Roger A.
Governments often use fiscal, exchange rate, monetary policy as well as export promotion tax increases, privatization, and land reform as part of comprehensive adjustments packages for addressing economic imbalances, balance of payments, and structural weaknesses. Such approaches, however, have come under heavy criticism for failing to recognize the social and environmental costs associated with them. Critics have argued that economic growth, trade liberalization, and increased primary product exports increase pressure on many sectors, including the agricultural and forestry land use sectors. This paper examines a number of these types of external shocks. This paper makes two arguments. First, from a theoretical economic perspective, although in many cases...
Tipo: Working or Discussion Paper
Palavras-chave: Forests; Sustainability; Macroeconomics; Trade; Exchange rates; Structural adjustment; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/10458

Forest Carbon Sequestration: Some Issues for Forest Investments
Provedor de dados: 31
Autores: Sedjo,   Roger A.
A major problem being faced by human society is that the global temperature is believed to be rising due to human activity that releases carbon dioxide to the atmosphere; i.e., global warming. The major culprit is thought to be fossil fuel burning, which is releasing increasing amounts of carbon dioxide in the atmosphere. The problem of increasing atmospheric carbon dioxide can be addressed a number of ways. One of these is forestry and forest management. This paper examines a number of current issues related to mitigating the global warming problem through forestry. First, the overall carbon cycle is described, and the potential impact of forests on the buildup of atmospheric carbon is examined. A major focus is the means by which forests and forest...
Tipo: Working or Discussion Paper
Palavras-chave: Forests; Carbon; Sinks; Sequestration; Forest management; Kyoto Protocol; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001
URL: http://purl.umn.edu/10571

Drought impacts and potential for their mitigation in southern and western Afghanistan
Provedor de dados: 31
Autores: Bhattacharyya, Kamal; Azizi, Pir Mohammad; Shobair, Sayed Sharif; Mohsini,   Mohammad Yasin.
Tipo: Working or Discussion Paper
Palavras-chave: Drought; Rain; Water scarcity; Irrigation water; Domestic water; Crops; Forests; Pastures; Watersheds; Water harvesting; Crop Production/Industries; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/92659

Valuing the Protection of Victorian Forests: Murray River Red Gums, and East Gippsland
Provedor de dados: 31
Autores: Bennett,   Jeffrey W.; Dumsday,   Robert G.
The Victorian Environmental Assessment Council, in developing recommendations for the Victorian Government on the future management of public lands forests along he Murray River, and in East Gippsland, commissioned an analysis of environmental protections values. This paper reports the results of a choice modeling application that provides that analysis. Values for improved environmental conditions, as described by attributes relating to the forest composition, its wildlife characteristics and recreational opportunities, were estimated for sub-samples of households in Melbourne and in various regions around Victoria. The usefulness of the results as inputs to benefit cost analyses of policy alternatives is assessed.
Tipo: Conference Paper or Presentation
Palavras-chave: Forests; Victoria; Choice modeling; Benefit cost analysis; Environmental Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/10366

Managing Forests for Sustainable Economic Development: Optimal Use and Conservation of Forests
Provedor de dados: 31
Autores: Tisdell,   Clement A.
The conservation of natural forests contributes significantly to the goal of achieving sustainable economic development. There is, however, growing concern that natural forests (which provide tangible and intangible economic benefits to humankind) are being lost at a rate which (combined with other factors) seriously threatens sustainable economic development because of the environmental and social impacts of such loss. There is little doubt that in order to achieve sustainable development, multifunctional forest ecosystems (as well as other important ecosystems) need to be managed appropriately. However, determining the socially optimal level of conservation and use of forests is a challenging task. From a human point of view, it is clearly not optimal to...
Tipo: Working or Discussion Paper
Palavras-chave: Discount rates; Ecosystem services; Environmental conservation; Forests; Intergenerational equity; Multifunctionality; Resource economics; Sustainable development; Community/Rural/Urban Development; Environmental Economics and Policy; Q20; Q23; Q56; Q57.
Ano: 2010
URL: http://purl.umn.edu/90465

The Forest Sector: Important Innovations
Provedor de dados: 31
Autores: Sedjo,   Roger A.
Unlike other resources such as petroleum, coal, and copper, forests are renewable. Yet, in many respects forests historically have been treated as a nonrenewable resource in that forest stocks were depleted or "mined" and loggers moved on to exploit other "deposits." The lands were often put to other uses, typically agricultural, or allowed to regenerate naturally. This paper looks at technical change in forest extraction, i.e., logging under a number of different conditions. It finds that, on average, labor productivity has been increasing in recent decades. However, total factor productivity in the US has declined in recent years. In addition, the study examines the tree-growing potential of plantation forestry. It finds that there is underway a...
Tipo: Working or Discussion Paper
Palavras-chave: Productivity; Resources; Forests; Timber; Technology; Innovations; Plantations; Logging; Genetics; Extraction; Resource /Energy Economics and Policy; O31; O32; O50; O51; Q23.
Ano: 1997
URL: http://purl.umn.edu/10667

Hedonic Valuation of Timber Stands in the Great Lakes Northern Forests
Provedor de dados: 31
Autores: Chen,   Susan Sou-I.
Forests and timber are important natural resources in the state of Michigan. Forestlands make of 53% of the total land area and the forest related industry and manufacturing sector in Michigan generate approximately $12 billion to the state’s economy.  Though forestry related industry and manufacturing is a multi-billion dollar industry that affects millions of acres of land in Michigan, there have been few recently published articles regarding timber stumpage appraisal in the state particularly about the northern hardwood forests.  This paper uses a hedonic timber stumpage appraisal model to calculate stumpage value for state managed forests. The model uses data from Michigan Department of Natural Resources to estimate the affect of various parameters on...
Tipo: Thesis or Dissertation
Palavras-chave: Forests; Hedonics; Stand valuation; Stumpage value; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q23 Forestry; Q51 Valuation of Environmental Effects.
Ano: 2010
URL: http://purl.umn.edu/98072

POLÍTICAS PÚBLICAS AMBIENTAIS: A EXPERIÊNCIA DOS PAÍSES NO USO DE INSTRUMENTOS ECONÔMICOS COMO INCENTIVO À MELHORIA AMBIENTAL
Provedor de dados: 31
Autores: Kawaichi,   Vanessa Mayumi; Miranda,   Silvia Helena Galvao de.
Este trabalho consiste de uma revisão crítica dos estudos que relatam a experiência de diversos países na adoção de políticas públicas, visando conter os impactos ambientais em seu território. O principal objetivo é analisar comparativamente a adoção de instrumentos econômicos (IE) pelos países em suas políticas públicas ambientais, considerados os diferentes objetivos ambientais perseguidos. Identificaram-se instrumentos de incentivo adotados em 54 países, pesquisados na literatura nacional e internacional, organizados por objetivo ambiental (proteção de florestas, recursos hídricos, solo, atmosfera, entre outros), e pela natureza da política. Há uma crescente tendência de adoção dos Instrumentos Econômicos, em parceria com os de Comando e Controle ou...
Tipo: Conference Paper or Presentation
Palavras-chave: Meio ambiente; Políticas públicas; Instrumentos de incentivo; Florestas; Resíduos; Environment; Public policies; Incentive instruments; Forests; Residues; Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/109660

The Impact of El Nino on Northeastern Forests: A Case Study on Maple Syrup Production
Provedor de dados: 31
Autores: Bergeron,   Nancy; Sedjo,   Roger A.
El Nino events are likely to affect maple syrup production since it is very sensitive to weather patterns. A statistically significant direct correlation has not been found in our preliminary analysis, however. This may be because many other factors affect production and because weather anomalies also occur in non-El Nino years. Few defensive activities are available to maple syrup producers to alleviate the negative impacts of weather anomalies on their production. Hence, the value of El Nino-Southern Oscillation (ENSO) forecasts to them is likely to be low, even if a clear correlation between productivity and ENSO events was eventually found. Overall, small welfare impacts of El Nino weather events are expected from their impact on the maple syrup...
Tipo: Working or Discussion Paper
Palavras-chave: El Nino; Forests; Maple syrup; Economic welfare effects; Dieback; Resource /Energy Economics and Policy; D61; Q10; Q20; Q23; N5.
Ano: 1999
URL: http://purl.umn.edu/10671

Carbon Sequestration with Reforestations and Biodiversity-Scenic Values
Provedor de dados: 31
Autores: Caparros,   Alejandro; Cerda,   Emilio; Ovando,   P.; Campos,   Pablo.
This paper presents an optimal control model to analyze reforestations with two different species, including commercial values, carbon sequestration and biodiversity or scenic values. We solve the model qualitatively with general functions and discuss the implications of partial or total internalization of environmental values, showing that internalizing only carbon sequestration may have negative impacts on biodiversity-scenic values. To evaluate the practical relevance, we compare reforestations in the South-west of Spain with cork-oaks (a slow growing native species) and with eucalyptus (a fast growing alien species). We do the analysis with two different carbon crediting methods: the Carbon Flow Method and the Ton Year Accounting Method. With the...
Tipo: Working or Discussion Paper
Palavras-chave: Optimal Control; Forests; Carbon; Sequestration; Biodiversity; Scenic; Stated Preferences; Carbon Accounting; Environmental Economics and Policy; Q23; Q26; Q51; Q57.
Ano: 2007
URL: http://purl.umn.edu/9323

Forestry Sequestration of CO2 and Markets for Timber
Provedor de dados: 31
Autores: Sedjo,   Roger A.; Sohngen,   Brent.
Forestry has been considered to have potential in reducing the atmospheric concentration of carbon dioxide by sequestrating carbon in above-ground timber and below-ground roots and soil. This potential has been noted in the Kyoto Protocol, which identified specific forestry activities for which carbon sequestration credits could be obtained. To date, a few forestry efforts have been undertaken for carbon purposes, but most of these efforts have been on a small scale. Proposals have been under discussion, however, that would result in the creation of very large areas of new forest for the purpose of offsetting some of the additional carbon that is being released into the atmosphere. Concerns are expressed, however, that large-scale sequestration operations...
Tipo: Working or Discussion Paper
Palavras-chave: Carbon; Forests; Sequestration; Leakages; Timber markets; Prices; Models; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2000
URL: http://purl.umn.edu/10778

Rethinking Scientific Management
Provedor de dados: 31
Autores: Nelson,   Robert H.
The U.S. Forest Service was founded early in the twentieth century with the progressive mission to achieve the scientific management of the forests of the United States. Scientific management was in part a political theory, holding out a model by which social values and technical considerations should function separately in the political process. However, since the 1970s the autonomy of Forest Service professionals to manage the national forests has been undermined by judicial decisions, White House and other executive branch oversight, and routine Congressional interference. Ecological management is a new attempt in the 1990s to revive scientific management but it is not likely to be any more successful than previous efforts. Instead, a new governing...
Tipo: Working or Discussion Paper
Palavras-chave: Scientific management; Progressive era; Forests; Forest Service; Environmental Economics and Policy; H41; N5; Q23; Q28.
Ano: 1998
URL: http://purl.umn.edu/10447

Estimating Carbon Supply Curves for Global Forests and Other Land Uses
Provedor de dados: 31
Autores: Sedjo,   Roger A.; Sohngen,   Brent; Mendelsohn,   Robert.
This study develops cumulative carbon 'supply curves' for global forests utilizing an dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and particular time points within that century, the curves are not traditional Marshallian supply curves or steady-state supply curves. Rather, the focus is on cumulative carbon cost curves (quasi-supply curves) at various points in time over the next 100 years. The research estimates a number of long-term, cumulative, carbon quasi-supply curves under different price scenarios and for different time periods. The curves trace out the relationship between an intertemporal price path for carbon, as given by carbon shadow prices, and the cumulative carbon...
Tipo: Working or Discussion Paper
Palavras-chave: Carbon supply curves; Sequestration; Timber; Forests; Model; Global warming; Prices; Markets; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001
URL: http://purl.umn.edu/10663

Can Carbon Sinks Be Operational? RFF Workshop Proceedings
Provedor de dados: 31
Autores: Sedjo,   Roger A.; Toman,   Michael.
An RFF Workshop brought together experts from around the world to assess the feasibility of using biological sinks to sequester carbon as part of a global atmospheric mitigation effort. The chapters of this proceeding are a result of that effort. Although the intent of the workshop was not to generate a consensus, a number of studies suggest that sinks could be a relatively inexpensive and effective carbon management tool. The chapters cover a variety of aspects and topics related to the monitoring and measurement of carbon in biological systems. They tend to support the view the carbon sequestration using biological systems is technically feasible with relatively good precision and at relatively low cost. Thus carbon sinks can be operational.
Tipo: Working or Discussion Paper
Palavras-chave: Carbon; Sinks; Global warming; Sequestration; Forests; Environmental Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001
URL: http://purl.umn.edu/10480

Mapping of Forest Biodiversity Values: A Plural Perspective
Provedor de dados: 31
Autores: Nunes,   Paulo A.L.D.; Ojea,   Elena; Loureiro,   Maria L.
The Millennium Ecosystem Assessment is built on a conceptual framework that links biodiversity to the services ecosystems provide to society. Based on this framework, we first compile market and non-market forest valuation studies and, secondly, explore the potential of an econometric modeling exercise by conducting a world wide meta-analysis. This exercise aims to highlight the mapping of biodiversity indicators and assesses their respective role on the valuation exercise. Our results show that biodiversity loss is having an effect on forest ecosystem values. In addition, these effects reveal to be dependent on the type of services and global geo-climatic regions.
Tipo: Working or Discussion Paper
Palavras-chave: Millennium Ecosystems Approach; Biodiversity Loss; Meta-Analysis; Market Valuation; Non-Market Valuation; Forests; Q57.
Ano: 2009
URL: http://purl.umn.edu/47768

Traditional practice of leaf litter harvesting and utilization by farmers in west-central Bhutan: Paving the way for sustainable management
Provedor de dados: 106
Autores: Rekha Chhetri; Banyong Toomsan; Wanwipa Kaewpradit; Viriya Limpinuntana.
Forest is an important resource for the farmers in soil fertility management and crop production in Bhutan. The tradition of leaf litter harvesting from the forests has been in practice since time immemorial. However, the continuous leaf litter harvesting has raised concerns on the sustainability of the leaf litter forests (Sokshing). There is a paucity of information about harvesting practices, utilization and management of forests. Hence, the presentstudy was aimed at generating information on how farmers perceive, utilize and manage leaf litter forests. Data were collected from two sub-districts Nahi and Limbukha in west-central Bhutan involving a total of forty farmers, using questionnaires and semi-structured interviews, focus group discussions and...
Tipo: Collection
Palavras-chave: Forests; FYM; Oak; Pine needles; Soil fertility; โอ๊ค; สน; ป่าไม้; การบำรุงดิน; ปุ๋ยหมัก; การจัดการป่าไม้; ความอุดมสมบูรณ์ของดิน; เศษซากใบไม้; ภูฏาน.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5339

Species richness and distribution of bryophytes within different phytophysiognomies in the Chapada Diamantina region of Brazil
Provedor de dados: 39
Autores: Valente,Emilia de Brito; Pôrto,Kátia Cavalcanti; Bastos,Cid José Passos.
The Chapada Diamantina ecoregion is within the caatinga (shrublands) biome of Brazil. Environmental factors determine the phytophysiognomies that distinguish the ecoregion from the surrounding areas. This study aimed to investigate the distribution of bryophyte flora in this ecoregion, by phytophysiognomy and elevational zone. Analyzing specimens we collected from five municipalities in the region, together with specimens (previously collected from the region) in herbaria, we identified 400 taxa. The phytophysiognomies that presented the highest species richness and the greatest numbers of exclusive taxa were forests and campos rupestres (dry, rocky grasslands), which respectively accounted for 51% and 40% of the taxa, compared with only 5% and 4%,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mosses; Liverworts; Forests; Campos rupestres; Elevational zonation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000200006

Conflitos socioeconômicos-ambientais relativos ao avanço do cultivo da soja em áreas de influência dos eixos de integração e desenvolvimento no Estado de Mato Grosso - DOI: 10.4025/actasciagron.v30i4.5305
Provedor de dados: 1
Autores: Schwenk, Lunalva Moura; UFRJ; Cruz, Carla Bernadete Madureira; UFRJ.
A pesquisa trata da espacialização da ocupação da soja, levantada por imagens de satélite, em duas áreas no Planalto e Chapada dos Parecis, estando a Área I sob influência do eixo da BR-364 e a área II da BR-163. Estudaram-se os municípios consolidados, expandindo-se ou projetando-se no cultivo da soja, motivados pela implantação de rodovias. Na Área I, estão: Brasnorte, Campos de Júlio, Sapezal e Campo Novo dos Parecis e, na Área II: Sorriso, Lucas do Rio Verde, Nova Mutum, Vera, Nova Ubiratã, Santa Carmem e Claudia. Embora a soja possibilite o crescimento econômico, contribuindo para melhorar o padrão e qualidade de vida, concomitantemente, desencadeia inúmeros conflitos ambientais, ecológicos e sociais, pois, à medida que a fronteira agrícola avança e...
Palavras-chave: 5.01.00.00-9    Agronomia conflitos socioeconômicos-ambientais; Soja; Cerrado; Floresta; Eixos da BR-163 e BR-364. Socio-economical-environmental conflicts; Soybean; Savanna; Forests; BR-163 and BR-364.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5305

Mapping and evaluation of the state of conservation of the vegetation in and surrounding the Chapada Diamantina National Park, NE Brazil
Provedor de dados: 49
Autores: Funch,Roy Richard; Harley,Raymond Mervyn; Funch,Ligia Silveira.
The Chapada Diamantina National Park (CDNP) was created in the midst of a densely populated area, and significant sections of the reserve are still undergoing processes of natural regeneration after intensive diamond mining activities were initiated in the mid-1800's. An up-to-date vegetation map was needed in order to indicate the types and distribution of regional vegetation assemblages in an easily interpretable manner and at an appropriate planning scale that could be easily consulted by decision makers and other interested groups at all levels of conservation (and development) planning. A vegetation map of the Chapada Diamantina National Park, and the areas immediately surrounding it, was prepared that: 1) delimits, describes, and maps the regional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vegetation map; Conservation planning; Vegetation assemblages; Forests.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000200001

Tree species sprouting from root buds in a semideciduous forest affected by fires
Provedor de dados: 52
Autores: Rodrigues,Ricardo R.; Torres,Roseli B.; Matthes,Luis A. F.; Penha,Alessandra S.
Tree species which sprouted from root buds were identified in a 3.6ha area of a Semideciduous Seasonal Forest fragment in Campinas, São Paulo State (22° 55' S and 47° 05' W), affected by several fires. Connection between sprouts and main trunk root system was confirmed by digging and root exposure. Twenty seven tree species with root buds were identified, with a high proportion of Leguminosae species. The majority of identified species (45%) were characteristic of initial secondary succession stages. Distances between sprouts and main trunks varied from 0.6m (Guettarda viburnioides Cham. and Schltdl- Rubiaceae.) to 14.0m (Colubrina glandulosa Perkins- Rhamnaceae). These results lead discussions about natural and/or human-made disturbances influence on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disturbances; Forests; Fire; Root buds; Sprouting; Vegetative propagation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100017