|
|
|
| Registros recuperados: 102 | |
|
| |
|
|
| Mendonça,Evânia Galvão; Paiva,Luciano Vilela; Stein,Vanessa Cristina; Pires,Marinês Ferreira; Santos,Breno Régis; Pereira,Fabricio José. |
| The objective of this work was to elucidate the growth curve of Eucalyptus camaldulensis Dehn. calli analyzing their anatomical modifications. A sigmoid aspect of the growth curve of the calli fresh matter was observed, with five different phases (lag, exponential, linear, deceleration and decline). In the lag phase, the highest growth percentage 87%, was observed, which reduced during the evaluation period to 17% in the linear phase. As for the anatomical analyses, cellular multiplications was observed during the lag and exponential phases and increase in cell size during the linear phase, promoting the calli volume growth and the establishment of the globular conformation. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: In vitro cultivation; Organogenesis; Anatomy; Astra blue; Safranin; Forestry. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000600012 |
| |
|
| |
|
|
| Terra,Maria Isabela da Costa; Camargo,Flora Ferreira; Macedo,Renato Luiz Grisi; Dias,Bruna Anair Souto; Venturin,Nelson; Nieri,Erick Martins. |
| ABSTRACT: This study aimed to evaluate the growth of rubber tree clones ( Hevea brasiliensis (Willd.exA.Juss.) Müll. Arg.) in the Northwest region of Minas Gerais, Brazil. Randomized blocks, constituted of three treatments (rubber tree clones) and four repetitions were used, and evaluated as plots subdivided in time. Subplots represent the evaluations carried out at the ages 62, 77, 87, 99, 113 and 128 months after planting. It was evaluated survival, stem circumference and total plant height. Current annual increment and average annual increment of circumference and also the number of trees fit for rubber tapping were calculated. Results obtained indicate that clones GT 1, IAN 2880, IAC 15, RRIM 600, PB 235 and IAN 3156 have potential to establish under... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forestry; Savannah; Rubber cultivation; Introduction of forest species.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601032 |
| |
|
|
| Erol,Seçil Yurdakul. |
| Inhabitants of urban and rural areas are important participants in the process of developing and implementing forest policy. Thus, it is essential to determine their demands and attitudes towards forestry issues. In this context, the demands and evaluation of forest functions are investigated in a case study of the Turkish province of Bal kesir. The findings of the case study show that differences in terms of demands among inhabitants of rural and urban areas are related to forest fires fighting, crimes fighting, forestry-tourism integration, forestation and regeneration activities, and the enlargement of forest areas. The main differences among their assessments of forest functions are related to fire wood production, and the provision of flood and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forestry; People demands; Forest functions; Cluster analysis; Comparing means. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000300009 |
| |
|
| |
|
| |
|
|
| Raik, Daniela B; Cornell University; dbr23@cornell.edu; Decker, Daniel J; Cornell University; djd6@cornell.edu. |
| Community-based forest management has proliferated throughout Africa as national governments have decentralized the administration of public forestry. Community-based forestry has taken multiple forms, depending on the assortment of land-tenure systems, forest-use norms, wood demand, and social organization, among others factors. Nature, Wealth, and Power is an analytical framework that has been developed from experiences in natural resource management in Africa. In this paper, we amend the framework to People, Nature, Wealth, and Power (PNWP), and propose it as an analytical lens for community-based forest management initiatives. We use the PNWP framework to assess the responsiveness of contractual forest management in the Menabe region of Madagascar to... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Community-based forest management; Decentralization; Forestry; Madagascar. |
| Ano: 2007 |
|
| |
|
| |
|
|
| Ferguson, Paige F. B.; Department of Biological Sciences, University of Alabama; Warnell School of Forestry and Natural Resources, University of Georgia; pfferguson@ua.edu; Conroy, Michael J; Warnell School of Forestry and Natural Resources, University of Georgia; mconroy@uga.edu; Chamblee, John F; Department of Anthropology, University of Georgia; chamblee@uga.edu; Hepinstall-Cymerman, Jeffrey; Warnell School of Forestry and Natural Resources, University of Georgia; jhepinst@uga.edu. |
| Parcelization and forest fragmentation are of concern for ecological, economic, and social reasons. Efforts to keep large, private forests intact may be supported by a decision-making process that incorporates landowners’ objectives and uncertainty. We used structured decision making (SDM) with owners of large, private forests in Macon County, North Carolina. Macon County has little land use regulation and a history of discordant, ineffective attempts to address land use and development. We worked with landowners to define their objectives, identify decision options for forest management, build a Bayesian decision network to predict the outcomes of decisions, and determine the optimal and least-desirable decision options. The optimal forest... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Bayesian decision network; Conservation easement; Decision analysis; Forestry; Fragmentation; Heritage; Present-use value; Sustainability; Timber harvest. |
| Ano: 2015 |
|
| |
|
| |
|
|
| This paper uses northern Sweden as a case study of a multi-use social-ecological system, in which forestry and reindeer husbandry interact as different land use forms in the same area. We aim to describe the timeline of main events that have influenced resource use in northern Sweden, that is, to attempt a historical profiling of the system, and to discuss these trends in the system in terms of adaptive cycles and resilience. The study shows that key political decisions have created strong path dependencies and a situation in which forestry today is characterized by low flexibility and low resilience due to the highly optimized harvesting of tree resources. Since forestry is the overwhelmingly strongest actor, trends in forestry from the mid-19th century... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive cycles; Boreal forests; Conservation; Forestry; Historical profiling; Panarchy; Reindeer husbandry. |
| Ano: 2010 |
|
| |
|
|
| Evans, Louisa S; Geography, College of Life and Environmental Sciences, University of Exeter; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; louisa.evans@exeter.ac.uk; Hicks, Christina C; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; Center for Ocean Solutions, Stanford University; christina.c.hicks@gmail.com; Cohen, Philippa J; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; WorldFish; p.cohen@cgiar.org; Case, Peter; College of Business, Law and Governance, James Cook University; School of Business, University of West England; peter.case@jcu.edu.au; Prideaux, Murray; College of Business, Law and Governance, James Cook University; murray.prideaux@jcu.edu.au; Mills, David J; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; WorldFish; d.mills@cgiar.org. |
| Leadership is often assumed, intuitively, to be an important driver of sustainable development. To understand how leadership is conceptualized and analyzed in the environmental sciences and to discover what this research says about leadership outcomes, we conducted a review of environmental leadership research over the last 10 years. We found that much of the environmental leadership literature focuses on a few key individuals and desirable leadership competencies. The literature also reports that leadership is one of the most important of a number of factors contributing to effective environmental governance. Only a subset of the literature highlights interacting sources of leadership, disaggregates leadership outcomes, or evaluates leadership processes... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Conservation; Entrepreneurship; Environmental governance; Fisheries; Forestry; Water. |
| Ano: 2015 |
|
| |
|
|
| Vlasova, Tatiana; Institute of Geography, Russian Academy of Sciences; tatiana.vlsv@gmail.com; Sutinen, Marja-Liisa; Finnish Forest Research Institute, Rovaniemi Research Unit; marja-liisa.sutinen@metla.fi; Chapin III, F. Stuart; Institute of Arctic Biology, University of Alaska, Fairbanks; terry.chapin@alaska.edu; Cabeza, Mar; Department of Biosciences, University of Helsinki; cabeza@cc.helsinki.fi; Callaghan, Terry V.; Royal Swedish Academy of Sciences, Stockholm, Sweden; Department of Animal and Plant Sciences, University of Sheffield, UK; Department of Botany, Tomsk State University, Russia; terry_callaghan@btinternet.com; van Oort, Bob; CICERO - Center for International Climate and Environmental Research, Oslo; oort@cicero.oslo.no; Dannevig, Halvor; Western Norway Research Institute; halvor.dannevig@vestforsk.no; Bay-larsen, Ingrid A.; Nordland Research Institute; ingrid.bay-larsen@nforsk.no; Ims, Rolf A.; Department of Arctic and Marine Biology, UiT- The Arctic University of Norway; rolf.ims@uit.no; Aspholm, Paul Eric; Bioforsk, Svanhovd; paul.eric.aspholm@bioforsk.no. |
| Humans depend on services provided by ecosystems, and how services are affected by climate change is increasingly studied. Few studies, however, address changes likely to affect services from seminatural ecosystems. We analyzed ecosystem goods and services in natural and seminatural systems, specifically how they are expected to change as a result of projected climate change during the 21st century. We selected terrestrial and freshwater systems in northernmost Europe, where climate is anticipated to change more than the global average, and identified likely changes in ecosystem services and their societal consequences. We did this by assembling experts from ecology, social science, and cultural geography in workshops, and we also performed a literature... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Barents Region; Biodiversity; Climate change; Ecosystem services; Forestry; Game species; Outdoor recreation; Reindeer husbandry; Social-ecological systems. |
| Ano: 2015 |
|
| |
|
|
| Donovan, D. G.; ;; Puri, R. K.; University of Kent; R.K.Puri@kent.ac.uk. |
| Traditional knowledge, promoted to make conservation and development more relevant and socially acceptable, is shown to have an important role in identifying critical research needs in tropical ecology. Botanists, foresters, and phytochemists, among others, from many countries have sought for decades to understand the process of resin formation in the genus Aquilaria, a tropical forest tree of South and Southeast Asia. Not every tree develops the resin and, despite extensive scientific research, this process remains poorly understood. Attempts at cultivating the valuable aromatic resin, gaharu, have been uneven at best. Thus, gaharu remains largely a natural forest product, increasingly under threat as the trees are overexploited and forest is cleared. In... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Aquilaria; Ethnobiology; Forestry; Gaharu; Kalimantan; Non-timber forest products; Penan; Sandalwood. |
| Ano: 2004 |
|
| |
|
|
| Gutierrez Rodriguez, Lucas; Department of Ecology, Autonomous University of Madrid; Center for International Forestry Research, Indonesia; L.GRodriguez@cgiar.org; Yang, Xiaosheng; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, China; yxiaosheng@263.net; Xie, Jinzhong; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, China; jzhxie@163.net; Fu, Maoyi; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, China; fumy1@163.net. |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Bamboo culture; Bamboo economy; Bamboo farmers; Bamboo forests; Bamboo industry; Bamboo plantations; Bamboo tourism; China; Cultural services; Economic services; Forestry; Rural development; Rural livelihoods. |
| Ano: 2014 |
|
| |
|
|
| Briner, Simon; ETH Zurich, Agri-Food and Agri-Environmental Economics Group, Department of Environmental Systems Science; briners@ethz.ch; Huber, Robert; Swiss Federal Institute for Forest, Snow and Landscape Research WSL; robert.huber@wsl.ch; Bebi, Peter; WSL Institute for Snow and Avalanche Research SLF; bebi@slf.ch; Schmatz, Dirk R.; Swiss Federal Institute for Forest, Snow and Landscape Research WSL; dirk.schmatz@wsl.ch. |
| Mountain ecosystems provide a broad range of ecosystem services (ES). Trade-offs between different ES are an important aspect in the assessment of future sustainable land-use. Management of ES in mountain regions must confront the challenges of spatial and temporal heterogeneity, and interaction with structural changes in agriculture and forestry. Using a social-ecological modeling framework, we assess the relationships between forest and agricultural ES in a mountain region in Switzerland. Based on the concept of jointness in production, we evaluated trade-offs and synergies among food provision, biodiversity conservation, carbon sequestration, and protection against natural hazards. Results show that increasing the provision of a focal ES in a mountain... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agriculture; Climate change; Ecosystem services; Forestry; Land-use change; Model-based scenario analysis; Mountainous regions; Trade-offs. |
| Ano: 2013 |
|
| |
|
| |
|
| |
|
|
| 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 |
|
| |
| Registros recuperados: 102 | |
|
|
|
