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| Registros recuperados: 14 | |
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| Braz, Evaldo Muñoz; Mattos, Patricia Povoa; Thaines, Fabio; de Madron, Luc Durrieu; Garrastazu, Marilice Cordeiro; Canetti, Aline; d’Oliveira, Marcus Vinício Neves. |
| Remnant forest structure and increment by diameter class play a decisive role in the recovery volume for the next cutting cycle. Tree species in the Amazon Forest do not present a defined pattern of diameter structure, which is discussed here using Cedrela odorata L. as a case study The aim of this study was to identify, by simulation, recovery from logging in a real situation at three timber production sites, and the alternatives that are available to ensure commercial timber volume to a second cut cycle in the Brazilian Amazon. The study is concerned regarding the diametric classes of productive trees to the next cycle, the comparison demonstrates that one of the strategies recovers stock volume more quickly than expected in the cut cycle defined by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manejo florestal; Dendrometria Cedrela odorata; Sustainable forest management; Cut rate; Rain Forest; Volume recover; Diametric structure Cedrela odorata; Manejo florestal sustentável Taxa de corte Floresta tropical; Recuperação em volume; Estrutura diamétrica. |
| Ano: 2015 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/941 |
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| Flueck, Werner T.; National Council for Scientific and Technical Research (CONICET), Argentina; Institute of Natural Resources Analysis, Universidad Atlantida Argentina; Swiss Tropical Institute, University of Basel; wtf@deerlab.org. |
| The exploitation of natural resources such as forests leads to sustainable forest management (SFM). The key question is how to define and parametrize “sustainable use.” Promoting forest use that conserves spatial characteristics of forest landscapes and the structure and composition of forest stands was proposed as a way of maintaining elements of biodiversity such as species richness and genetic variation. However, to establish the parameter space for sustainable forest use, it is essential to consider the nutrient requirements of forest systems, that is, plants and animals, the need for fertilizer application, and the effects on biogeochemical cycles, a cornerstone of biological evolution and, thus, biodiversity. The use of forest... |
| Tipo: Peer-Reviewed Response |
Palavras-chave: Biogeochemical cycle; Fertilizer; Macronutrients; Micronutrients; Phosphorus; Selenium; Sustainable forest management. |
| Ano: 2009 |
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| Franco, Carlos Alberto; Esteves, Lara Torchi; Santos, Ruama Araujo Dos; Silva, Perelli Gouveia E. |
| Esta pesquisa aborda a atividade madeireira sob o regime de concessão florestal desenvolvido no Estado do Acre. Os objetivos do presente estudo são: identificar o custo da produção do manejo florestal sustentável (MFS) para produção madeireira, tendo como base a Floresta Estadual do Antimary (FEA); e, quantificar o valor, a ser pago pela terra, numa área destinada como floresta pública de produção, no ano de 2005. Para tal, foi considerada, como premissa básica, um ciclo de corte de 15 anos. As técnicas usadas identificaram o custo de produção da madeira com origem em uma florestal manejada (Cmf), o valor presente líquido (VPL) do MFS e o valor esperado da terra (VET), os quais foram calculados considerando as taxas de desconto de 4%, 6%, 8%, 10% e 12% ao... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Manejo florestal sustentável; Custo da produção madeireira; Economia florestal; Valor esperado da terra; Sustainable forest management; Timber production cost; Forest economics; Land expectation value; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/108831 |
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| SILVA,Paulo Henrique da; GOMIDE,Lucas Rezende; FIGUEIREDO,Evandro Orfanó; CARVALHO,Luis Marcelo Tavares de; FERRAZ-FILHO,Antônio Carlos. |
| ABSTRACT Reduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest planning; Reduced-impact logging; Integer linear programming; Sustainable forest management; Liocourt quocient. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100018 |
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| Cerutti, Paolo Omar; Center for International Forestry Research (CIFOR), Bogor, Indonesia; p.cerutti@cgiar.org; Nasi, Robert; Center for International Forestry Research (CIFOR), Bogor, Indonesia; r.nasi@cgiar.org; Tacconi, Luca; Crawford School of Economics and Government, The Australian National University; luca.tacconi@anu.edu.au. |
| One of the main objectives of the 1994 Cameroonian forestry law is to improve the management of production forests by including minimum safeguards for sustainability into compulsory forest management plans. As of 2007, about 3.5 million hectares (60%) of the productive forests are harvested following the prescriptions of 49 approved management plans. The development and implementation of these forest management plans has been interpreted by several international organizations as long awaited evidence that sustainable management is applied to production forests in Cameroon. Recent reviews of some plans have concluded, however, that their quality was inadequate. This paper aims at taking these few analyses further by assessing the actual impacts that... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Cameroon; Certification; Law enforcement; Sustainable forest management. |
| Ano: 2008 |
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| Newton, Adrian C; Centre for Conservation Ecology and Environmental Change, Bournemouth University; anewton@bournemouth.ac.uk; Golicher, Duncan; El Colegio de la Frontera Sur; dgoliche@sclc.ecosur.mx; Gonzalez-Espinosa, Mario; ECOSUR; mgonzale@ecosur.mx; Huth, Andreas; UFZ; andreas.huth@ufz.de; Premoli, Andrea; Universidad Nacional del Comahue; andrea.premoli@gmail.com. |
| Although sustainable forest management (SFM) has been widely adopted as a policy and management goal, high rates of forest loss and degradation are still occurring in many areas. Human activities such as logging, livestock husbandry, crop cultivation, infrastructural development, and use of fire are causing widespread loss of biodiversity, restricting progress toward SFM. In such situations, there is an urgent need for tools that can provide an integrated assessment of human impacts on forest biodiversity and that can support decision making related to forest use. This paper summarizes the experience gained by an international collaborative research effort spanning more than a decade, focusing on the tropical montane forests of Mexico and the temperate... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Biodiversity conservation; Environmental modeling; Landscape ecology; Latin America; Spatial analysis; Sustainable forest management. |
| Ano: 2009 |
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| Registros recuperados: 14 | |
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