Página 1 dos resultados de 776 itens digitais encontrados em 0.003 segundos

Sistemas agroflorestais para recuperação de matas ciliares em Piracicaba, SP. ; Agroforestry systems for restoration of riparian forests in Piracicaba, SP.

Vaz da Silva, Patricia Pereira
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 09/04/2002 PT
Relevância na Pesquisa
37.71%
A necessidade de recuperação de áreas ciliares degradadas tem subsídio na legislação, porém, o uso de sistemas agroflorestais para esse fim não é permitido. O objetivo desse trabalho é comparar a capacidade de recuperação de dois sistemas agroflorestais e de um plantio florestal com espécies arbóreas nativas, também avaliando as diferenças de custos de implantação e manejo. A pesquisa foi realizada no Estado de São Paulo, município de Piracicaba, às margens do Rio Corumbataí, na propriedade da Usina Costa Pinto, onde o cultivo de cana-de-açúcar ocupa a maior parte do uso do solo. Os tratamentos foram: (1) testemunha; (2) sistema florestal, com 10 espécies arbóreas nativas; (3) sistema agroflorestal simples, com as mesmas arbóreas nativas, guandu e feijão-de-porco como adubo verde; (4) sistema agroflorestal complexo, com diversas espécies frutíferas, girassol e capim napier, além das mesmas arbóreas nativas e das duas leguminosas. Os fatores mensurados foram: altura e diâmetro à altura do colo das arbóreas nativas, custos, liberação de CO2 do solo, biomassa microbiana e fertilidade do solo. O SAF simples apresentou as maiores alturas médias, com um aumento de 36% em relação ao sistema florestal. O SAF complexo apresentou resultados intermediários...

Avaliação econômica de quatro modelos agroflorestais em áreas degradadas por pastagens na Amazônia ocidental.; Economic evaluation of four agroforestry systems models in degraded pastures areas in the ocidental Amazon.

Santos, Mario Jorge Campos dos
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 30/01/2001 PT
Relevância na Pesquisa
37.52%
O presente estudo teve como objetivo avaliar a viabilidade econômica de quatro sistemas agroflorestais em área com pastagem degradada na Amazônia Ocidental. A área escolhida para o desenvolvimento desta pesquisa está localizada na Estação Experimental da EMBRAPA/CPAA (Empresa Brasileira de Pesquisas Agropecuárias - Centro de Pesquisas Agroflorestais da Amazônia Ocidental) no Distrito Agropecuário da SUFRAMA - DAS, Km 54 da BR-174 (Manaus-Boa Vista- Brasil), em áreas de terra firme. Os modelos agroflorestais analisados foram implantados seguindo delineamento experimental em blocos casualizados, com 5 tratamentos, 3 repetições e a pastagem abandonada como testemunha, em parcelas de 3.000 m 2 (60m x 50m), com uma área total de 4,5 ha. Os tratamentos foram distribuídos da seguinte forma: ASP-1 (Sistema Agrossilvipastoril – altos insumos); SP2 (Sistema Agrossilvipastoril – baixos insumos); AS1 (Sistema Agrossilvicultural – baixos insumos com palmeiras); AS2 (Sistema agrossilvicultural – baixos insumos multiestrato) e pastagem abandonada (testemunha). Houve aplicação de insumos para correção de acidez e fertilidade do solo. A avaliação econômica dos sistemas agroflorestais analisados baseou-se no cálculo do valor presente líquido dos respectivos fluxos de caixa constituídos a partir da presuposição que os mesmos podem ser repetidos perpetuamente. Os resultados obtidos...

Cobertura florestal e intensificação do manejo: desafios para manutenção de biodiversidade em mosaicos agroflorestais; Forest cover and management intensification: challenges for biodiversity maintenance in agroforestry mosaics

Cassano, Camila Righetto
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 02/12/2011 PT
Relevância na Pesquisa
37.56%
Sistemas agroflorestais abrigam grande biodiversidade quando comparados a outros usos da terra e representam uma ferramenta importante para conciliar produção agrícola e conservação de recursos naturais em paisagens modificadas pelo homem. Esta tese é composta de três capítulos que sintetizam e ampliam o conhecimento a respeito da influência do manejo das agroflorestas e da cobertura florestal remanescente sobre a distribuição dos organismos e apontam ações visando a conservação de biodiversidade em mosaicos agroflorestais. No primeiro capítulo revisamos a informação científica publicada até 2008 sobre a diversidade da fauna e flora nativas nas agroflorestas de cacau do sul da Bahia. Com base nesta síntese, identificamos recursos chave presentes nessas plantações que se relacionam com a maior riqueza de espécies ou presença de táxons ameaçados e evidenciamos a importância da manutenção de florestas nativas em mosaicos agroflorestais. Finalizamos esta revisão com recomendações para um manejo adaptativo visando a conservação de biodiversidade em propriedades e mosaicos agroflorestais e levantamos questões para serem respondidas por estudos futuros. Nos capítulos 2 e 3, apresentamos dois estudos empíricos realizados a partir da amostragem de mamíferos por armadilhas fotográficas em 30 agroflorestas e remanescentes florestais adjacentes a nove delas. No segundo capítulo...

Agrofloresta e cartografia indígena: a gestão territorial e ambiental nas mãos dos agentes agroflorestais indígenas do Acre; Agroforestry and Indigenous cartography: territorial and environmental management in the hands of Indigenous Agroforestry Agents of Acre

Gavazzi, Renato Antonio
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 29/08/2012 PT
Relevância na Pesquisa
37.52%
O presente trabalho aborda uma experiência local na Amazônia ocidental brasileira no estado do Acre, desde 1996, onde trata de uma ação educacional na formação de Agente Agroflorestal Indígena (AAFI) para a gestão territorial e ambiental das terras indígenas e de seu entorno. A pesquisa debate dois aspectos fundamentais na formação do AAFI: a agrofloresta e a cartografia indígena. A agrofloresta nessa pesquisa é vista pelo olhar atento dos AAFIs, através de seus registros realizados em seus diários de trabalho. Trata-se dos registros etnográficos, realizados pelos próprios índios a partir da sua realidade, por meio do uso da língua escrita e do desenho figurativo. Os diários de trabalho mostram como os AAFIs, junto às suas comunidades, têm trabalhado no uso, no manejo e na conservação dos recursos naturais e agroflorestais. Os AAFIs através das práticas agroflorestais vêm contribuindo na construção de novos modelos e novos espaços produtivos adaptados às condições ecológicas da floresta tropical, com o aporte do conhecimento tradicional, do conhecimento científico-acadêmico e do conhecimento local e de uma efetiva participação das comunidades indígenas na gestão de seus territórios. A cartografia indígena é tratada como uma disciplina direcionada para orientar o planejamento e a gestão das terras indígenas. O trabalho destaca a importância dos conhecimentos indígenas na construção individual e coletiva dos mapas mentais e georreferenciados e dos planos de gestão...

Deposição e concentração de nutrientes da serapilheira de seis espécies nativas do Pontal do Paranapanema: uso da biodiversidade funcional em sistemas agroflorestais; Deposition and concentration of nutrients from litter of six native species from Pontal do Paranapanema - SP, Brazil: functional biodiversity use in agroforestry systems

Campos, Henrique Ferraz de
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 17/04/2015 PT
Relevância na Pesquisa
37.42%
Na elaboração de arranjos de sistemas agroflorestais devem ser buscadas interações benéficas entre as espécies utilizadas, com o intuito de atingir os objetivos desses sistemas em otimizar a eficiência do uso dos recursos naturais como: luz solar, a água e os nutrientes. Essas interações benéficas em SAFs são, muitas vezes, obtidas através da utilização de princípios e funcionamentos semelhantes ao ecossistema natural da região. Um dos funcionamentos chaves para garantir a sustentabilidade dos ecossistemas florestais é a dinâmica da serapilheira. A dinâmica quantitativa e qualitativa da produção de serapilheira é fortemente influenciada pela composição de espécies. Poucos estudos evidenciam o papel individual de cada espécie, sobretudo das árvores nativas, nessa dinâmica. Nesse sentido, este estudo teve o objetivo de aprofundar o conhecimento do papel individual na deposição e concentração de nutrientes da serapilheira de 6 espécies nativas da floresta estacional semidecidual, para uso racional desse conhecimento em sistemas agroflorestais, principalmente para a agricultura familiar e assentamentos rurais da região do Pontal do Paranapanema. O experimento foi desenvolvido em um plantio de restauração ecológica no município de Presidente Epitácio...

Análise emergética de um sistema agroflorestal : Sítio Catavento, Indaiatuba, SP; Emergy analysis of an agroforestry system

Teldes Correa Albuquerque
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 27/02/2012 PT
Relevância na Pesquisa
37.42%
A forma de produção da agricultura em larga escala, intensiva em defensivos agrícolas, tem demonstrado ser destrutiva quanto à preservação da biodiversidade e de outros fatores de produção como solo e água. Neste sentido, novas alternativas de produção agrícola têm sido estudadas e aplicadas objetivando a recuperação dos solos, entre as quais se destaca a metodologia de sistemas agroflorestais (SAFs). A presente pesquisa tem como objetivo estudar o processo de recuperação de uma área degradada por meio da implantação de um sistema agroflorestal no Sítio Catavento, localizado no município de Indaiatuba, São Paulo, para evidenciar a viabilidade econômica dos SAFs para pequenos produtores rurais, assim como mostrar a eficiência dessa técnica na recuperação de solo degradado. Foram utilizadas neste trabalho as seguintes ferramentas científicas: (a) metodologia emergética proposta por Howard T. Odum, (b) metodologia de consórcio de espécies com sucessão vegetal e ciclagem de nutrientes desenvolvida por Ernst Götsch. Foram feitos: o levantamento dos dados sobre cobertura do solo, espécies vegetais existentes e a classificação das mesmas, bem como a identificação de suas funções ecológicas e econômicas e seus ciclos de vida. Foi equacionado e calculado o crescimento de cada uma das espécies do sistema agroflorestal. Foi estimado o valor da percolação de água de chuva. Foram obtidos os indicadores emergéticos para um ciclo completo de recuperação florestal (cinquenta anos). Os índices emergéticos calculados foram: Transformidade (Tr)...

Combining hens for egg production and trees for wood chips in an agroforestry system: lessons learnt after 3 years

Spangenberg, G.; Hein, S.; Schneider, J.
Fonte: EURAF Publicador: EURAF
Tipo: Outros
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.48%
A 7.1 ha agroforestry field experiment located in south-western Germany demonstrates, how to combine short rotation coppicing for fuel wood production with poultry keeping with the production of eggs. This combined system offers additional ecosystem services and gives multifarious benefits. The agroforestry system has been established since 2009 by an organic farmer (certified) in close cooperation with the University of Applied Forest Sciences Rottenburg. While changing from indoor to outdoor housing required by the standards of organic farming the owner of the farmland wanted to meet not only with the standards, but additionally he wanted to fulfill objectives like: * Raising and keeping hens in a close-to–nature environment, * Finding a way, that hens exploit all the terrain available and not only those areas close to the chicken-coop, * Improving the conditions of the vegetation, soil and hygiene of the hens. The agroforestry system has been implemented based on two components: The first component consists of the construction of mobile chicken-coops (patent of the farmer). The mobile coops can be moved in their position over the experimental plots several times per year without much effort. The second component consists of strips of willows and poplars...

Agroforestry in Czech Republic - present state and perspectives

Lojka, B.; Martinik, A.
Fonte: EURAF Publicador: EURAF
Tipo: Outros
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.56%
Poster; Agroforestry has been practiced from the beginning of agriculture in whole Europe; however, currently it is not a common landuse system in Czech Republic. Traditional agroforestry practically disappeared during the era of collective farming throughout of 20th century, except for small remnants and modern agroforestry systems are not in practice yet. The most extended traditional agroforestry practice is silvopastoral form of streuobst (streuobstwiesen - grazing of extensive fruit orchards) remaining in sites with less favourable conditions for intensive agriculture (e.g. mountains – regions of White Carpathians and Bohemian Forest). Silvoarable streuobst (streuobstäcker – intercropping under fruit orchards) is of no importance but nowadays some organic farmers are interested in this. There are also other agroforestry systems: trees on pasture (found in mountain areas – e.g. Jeseníky), intercropping of forest trees and forest farming/gardening. Intercropping of forest trees involves interplanting trees in forest during first years after establishment. In past it was practiced in various forms until the 19th century when it was promoted by foresters. Now this system is practiced only in small part of floodplain forest where crop cultivation helps weed reduction. We can find also few examples of forest farming/gardening scattered around Czech Republic...

Carbon balance estimation for agroforestry land use alternatives in Portugal

Crous-Duran, J.; Paulo, J.A.; Palma, J.H.N.
Fonte: Universidade Técnica de Lisboa Publicador: Universidade Técnica de Lisboa
Tipo: Outros
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.42%
Poster; In 2005, 11% of the anthropogenic greenhouse gases emissions (GHG) were originated from agricultural activities and this value is expected to increase in the future (IPCC 2007). Besides the contribution for the restoration of soil productivity and for the improvement of conditions in degraded land, Agroforestry is also proposed as one of the main solutions for the mitigation of the GHG emissions and their effect on Climate Change (IPCC 2007). With European Union’s legislation supporting and promoting the conversion of land into low-carbon-integrated agriculture, new opportunities arise for the implementation of this type of land use in Europe. In Portugal, this type of agriculture is well represented by a traditional Agroforestry system called montado, combining low density cork oak trees (Quercus suber L) with pastoral activities occupying an area of 715,922 ha (AFN, 2010), with recent studies showing an extra area suitable for its implementation of around 353,000ha (Palma et al 2014). Considering the new policies established by the EU in regard to the measures to be considered in agriculture for the Climate Change mitigation, and the capacity of the Agroforestry systems to act as a low-carbon and highly productive agriculture...

Agroforestries: a new mixed technological network for agroforestry development in France

Mézière, D.; Bachevillier, Y.; Carlier, B.; Grandgirard, D.; Liagre, F.; Dupraz, C.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.59%
Poster; Facing new challenges of agriculture, the research for more sustainable agrosystems includes a growing interest in agroforestry practices. Over the past years, a large number of experimental and demonstration plots have been established all around France. However, coordination between research and extension partners is lacking. In order to support innovations in agriculture, the French government encourages partnership between research, development and education stakeholders, through the creation of Mixed Technological Networks (Réseaux Mixtes Technologiques, RMT). These RMTs benefit from national recognition and receive a grant for network coordination and communication. In 2014, a new network was created: the RMT “AgroforesterieS” brings together about fifty members involved in agroforestry, from research, semi-public and associative farmers’ organizations, technical institutes, engineering offices, and agricultural schools. By sharing expertise, databases and demonstration sites, the network aims at (i) promoting collective dynamics for the development of sustainable and innovative agroforestry systems adapted to the French territorial constraints, and (ii) developing technical and methodological tools for the setting up and management of agroforestry systems. It will particularly achieve these by: 1. Creating an observatory of agroforestry practices...

Agroforestry and the Afforestation Programme in the Republic of Ireland

Curran, E.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.42%
Poster; The Forest Cover in Ireland had fallen to the seriously low level of 1% of the land mass by the turn of the twentieth century. A series of grant aided initiatives were put in place to increase this level. Currently the Irish forest cover is approximately 11%, while the EU average is around 34%. Since the late 1980s, afforestation in the Republic of Ireland has almost completely changed from public planting to private planting, Farmers are now the main contributors of land for afforestation. However, planting levels have fallen from 20,000 hectares to 7,000 hectares per annum, mainly due to environmental constraints, silvicultural suitability, competing agricultural systems and land availability. Agroforestry could be a way to help increase the current planting levels. In 2011, the Department of Agriculture started to investigate the potential of agroforestry. In 1989, pioneering trial plots were established in Northern Ireland by Dr Jim McAdam. One silvopastoral trial had potential for replication in the Republic. A suitable farm was sourced and a demonstration plot of 1.89 hectares was planted. This involved ash (Fraxinus excelsior) planted at 5 x 5 metre spacing and using tree shelters. The farmer grazed sheep in the early and late spring...

Agroforestry research and development in Hungary

Vityi, A.; Marosvolgyi, B.; Szalai, Z.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.48%
Poster; Hungary is a traditionally agricultural country, therefore the „old” agroforestry technologies (windbreaks, shelter-belts, hedgerows, wooded pastures) had been applied in large scale in the past centuries. From the early nineties the positive trend of increasing area of protective forest belts first stopped, then reversed. The former area of forest belts (35 000 hectares) has decreased by 50% up to this time. The high ratio of “risky” territories demonstrates the strong need for the development of rural areas, by eg. the implementation of innovative agricultural technology able to increase social-economic sustainability. Followed from the forest belt research project started in the ’60s and ran over the course of several decades, a new line of experiments has started some years ago in the UWH Faculty of Forestry with the aim to develop a modell for the design and construction of forest belts by the combination of digital modelling and field sampling with analytical methods. The examination and development of windbreaks and shelter belt system will be continued within the frame of a national project focused on climate – vegetation relationship. In 2012 the UWH Cooperational Research Centre, together with local cooperatives and farmers have set the objective of integrating modern agroforestry technologies in their on-farm agricultural activity and establishing new experimental sites available for future research and demonstration purposes. This cooperation will also contribute to the „AGFORWARD” international research project on agroforestry. In the Corvinus University of Budapest...

Carbon sequestration in a poplar agroforestry system in India with wheat and other crops at different spacing and row directions

Dhillon, R.S.; Beniwal, R.S.; Wuehlisch, G.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.42%
Presentation; Owing to its fast growth, deciduous nature, marketing acceptability, and successful intercropping, poplar has become a viable alternative to traditional irrigated rice-wheat rotation in north-western states of India and satisfies the rising requirements of the plywood industry. Agroforestry provides multiple ecological and economical benefits including carbon sequestration, soil and water improvement, raising species diversity and stabilizing farmer’s incomes by diversification. Results show the carbon sequestration potential of poplar based agroforestry systems and effects of spacing as well as row direction. In the study, the wheat crop was sown during the first week of November and harvested in April and no other crop was grown till the next winter wheat crop. For estimation of carbon flows, four carbon pools were considered, viz. above-ground biomass, below-ground biomass, litter and soil carbon. Winter cereals are suited to partner deciduous trees. The crop grows strongly during the initial period from November to mid March, when shading is not a problem. By the time the poplars have developed foliage, the cereal crop is completing its vegetative growth and the ripening of the crop is delayed by two weeks. The yield of the grain and straw decreased sharply from 15 to 65 % under one to six year duration. Organic carbon content in the top soil increased considerably under agroforestry crops with 0.36 % under the six year plantation and 0.22 % under the control. The carbon stock in different carbon pools under study indicated that the above-ground biomass followed by below-ground biomass accumulated to 39 t/ha at the age of 6 years under the agroforestry system compared to 4.9 t/ha of the control. The study strongly reinforces poplar-crops association a better option than the sole agricultural cropping...

The role of rural development policy in supporting agroforestry systems in EU

Pisanelli, A.; Marandola, D.; Marangiu, S.; Paris, P.; Rosati, A.; Romano, R.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.52%
Presentation; A financial support (Measure 222) was introduced in the EU Rural Development Programmes (RDPs) 2007-2013 aimed at promoting the establishment of agroforestry systems on arable lands. The objectives of the paper are to: i) assess the implementation rate of the Measure 222 in EU27 during the period 2007-2013; ii) identify the main reasons and constraints that affected the farmers’ interest in the Measure 222, iii) highlight the perspectives in the next RDPs 2014-2020. The data on RDPs monitoring were obtained from the European Network for Rural Development (http://enrd.ec.europa.eu) and analyzed. The study compared the financial resources allocated to implement the Measure 222 with: i) the resources allocated to implement other forestry Measures; ii) the effective expenditures invested in establishing new agroforestry systems. The output indicators (number of beneficiaries and hectares under new agroforestry systems) were also analyzed in relation to their expected target. The Measure 222 was poorly applied across EU27: only few EU Regions have allocated resources to the Measure 222 and only 3.4% of these resources has been effectively invested to create new agroforestry systems on arable lands. Moreover, only 2.3% of the expected beneficiaries has been targeted and 2.1% of the expected hectares has been realized. The main constraints that have hampered the success of the Measure 222 in EU27 are reported. The new Regulation (EU Reg. 1305/2013) in support of rural development 2014-2020 states that: i) agroforestry systems comprise the combination between forestry plantations and agriculture on the same land; ii) grants should cover the establishment costs (up to 80% of the expenses) and the maintenance costs with an annual premium for 5 years; iii) beneficiaries should be not limited to farmers but may include also Municipalities and Associations. This new grant scheme should raise farmers and land owners interest in agroforestry systems.

Soil carbon sequestration in a Mediterranean agroforestry system

Cardinael, R.; Chevallier, T.; Barthès, B.; Dupraz, C.; Chenu, C.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.56%
Presentation; The Earth’s soils are a large reservoir of carbon (C), containing about 1500 Pg C, which represents two to three times the C contained in the atmosphere. This reservoir is extremely sensitive to land use and can act as a source or as a sink of atmospheric CO2. Agroforestry systems are expected to sequester C into both above and belowground biomass. Such systems could also increase soil organic carbon (SOC) stocks due to higher organic inputs including leaf litter, pruning residues, tree fine roots’ turnover and root exudates. However, although tropical agroforestry systems have been thoroughly investigated, there are very few estimates of C sequestration in soils from temperate conditions. The objectives of this study were (i) to quantify the SOC stocks down to 2 m soil depth in an 18-year-old agroforestry system and in an adjacent agricultural plot, and (ii) to assess which SOC fractions are responsible for this additional storage. The experimental field was established in 1995 in Restinclières, South of France, on an alluvial carbonated Fluvisol. In the agroforestry system, hybrid walnuts (13x4-8m spacing, 85 trees ha-1) are intercropped with durum wheat, whereas in the adjacent agricultural plot, only durum wheat is cultivated. Spontaneous vegetation also grows on the tree row. About 200 soil cores were sampled from ten soil layers from 0 to 2m into the two plots of 625 m2 each. Bulk densities...

Holistic agroforestry system in practice. Just an idea or is there a living model ?

Palma, J.H.N.; Paulo, J.A.; Sendim, A.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 POR
Relevância na Pesquisa
37.66%
Presentation; In the last decades there has been a tendency to classify agroforestry systems to help focus on particular aspects of different practices with specific objectives. However, in practice, the management of land use at farm scale has a wide range of options and decisions to be made at operational level following a certain strategy. Farmers can adopt certain agroforestry practices to suit and enhance their business as usual. What if agroforestry is considered the central key for the farming system and the business as usual is built under the “agroforestry concept umbrella” to produce different farming activities? We introduce a holistic agroforestry business model running in practice in Herdade do Freixo do Meio (HFM), about 100 km east of Lisbon. This farm has 423 ha running a business which strategy is based on sustainability concepts. There are three pillars in the current sustainable management model: Deepening, Widening and Repositioning. The first one focus on a) diversification of income, b) organic agriculture, c) extensive production practices, d) autochthonous species and their certification, e) on-farm added value to products. The Widening strategy focus on f) recreational and environmental education...

Acacia saligna as a sustainable agroforestry crop for southern Australia: a genetic assessment.

Millar, Melissa Ann
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2008
Relevância na Pesquisa
37.48%
Acacia saligna is a native species complex with a widespread natural distribution throughout the south west of Western Australia. It is being developed as an agroforestry crop to produce low value, bulk biomass products in the low rainfall agricultural areas of southern Australia. This thesis develops knowledge to assist the domestication and breeding program of A. saligna as an agroforestry cultivar. It also furthers development of a risk management plan for utilisation of the Acacia saligna species complex. Highly informative microsatellite markers for A. saligna were developed for use in mating system studies, paternity analysis and in the development of a diagnostic tool for the identification of individuals and populations at the subspecific level. Microsatellites developed in other Acacia species were also screened for utility in A. saligna. A high level of outcrossing (mean multilocus outcrossing rate of 0.98) and little true selfing was found for a planted stand of A. saligna subspecies saligna. Paternity analysis indicated heterogeneity in pollen clouds experienced by maternal trees and an essentially random pattern of mating within the stand. Inter-subspecific pollen immigration into the stand from trees of subspecies lindleyi was detected for 14% of progeny analysed and occurred over distances greater than 1500 m. Extensive intra-subspecific pollen-mediated gene flow is maintained between remnant natural populations of A. saligna subspecies lindleyi...

Agricultural, forest and rural policy sectors' receptiveness to agroforestry intercropping systems in Quebec (Canada)

Laroche, G.; Mercier, J.; Olivier, A.
Fonte: EURAF Publicador: EURAF
Tipo: Conferência ou Objeto de Conferência
Publicado em /06/2014 ENG
Relevância na Pesquisa
37.56%
Poster; In Quebec (Canada), intercropping trees and crops is a new practice in the agricultural landscape dominated by conventional monocropping systems. As research goes on and slowly reveals the potential of these systems to address some key issues in agriculture, forestry and rural development, and as farmers’ awareness increases, there is a pressing need to find public support for these systems. In order to help the promoters of agroforestry intercropping systems in their search of support in the political arena, we conducted a comparative study of the receptiveness of the agricultural, forest and rural policy sectors to these systems. As the literature on public policy processes has stressed the importance of policy stakeholders’ ideas in the implementation of new policies, we used a conceptual framework based on cognitive schemes to compare the ideas driving these policy sectors with the ideas supporting agroforestry intercropping systems. Results based on the analysis of formal publications and semi-directed interviews conducted with agroforestry experts and policy stakeholders underline that agroforestry intercropping systems are mostly featured by their promoters as sustainable and multifunctional systems. The rural policy sector has proven to be the most receptive and the forest sector the less receptive...

Uniformity of fruit ripening of Conilon coffee in agroforestry system and monocrop system.

LUNZ, A. M. P.; SALES, F. de; MESQUITA, J. F. B. de
Fonte: In: WORLD CONGRESS IN AGROFORESTRY, 3., 2014, Delhi. Anais... Delhi: ICAR; World Agroforestry Centre, 2014. Publicador: In: WORLD CONGRESS IN AGROFORESTRY, 3., 2014, Delhi. Anais... Delhi: ICAR; World Agroforestry Centre, 2014.
Tipo: Resumo em anais de congresso (ALICE)
EN
Relevância na Pesquisa
37.56%
The objective of this work was to evaluate the effect of two coffee cropping systems (monocrop and agroforestry system) on the uniformity of fruit ripening of different cultivars of conilon coffee (Coffea canephora). The research was conducted at Embrapa Acre, in Rio Branco-Acre, Brazil (10º1'30"S, 67º42'18"W). A randomized complete block design was used in split plot, with six treatments and six replications. Plots were represented by coffee crop systems and subplots by conilon coffee cultivars (BRS-Ouro Preto, Robusta Tropical and Espirito Santo). The agroforestry system was composed by coffee, açaí (Euterpe oleraceae), andiroba (Carapa guianensis) and banana (Musa sp). Data of coffee ripening were collected in the first harvest. At the first harvest of coffee, sample of 200g of coffee fruits were removed each plot and quantified by counting of the unripe, ripe (cherry) and dry fruit. Subsequently was calculated the proportion of coffee fruits at each maturation stage. The ripening stage of coffee fruits was different in the two cropping systems. There was a slight improvement in uniformity of fruit ripening from the agroforestry system. Fruits of coffee plants in monocrop, in other words under full solar radiation, showed maturity stage advanced than the fruits from agroforestry system...

A agrofloresta e os contornos de um sujeito (re)significado; The agroforestry and the contours of a subject (re) meaning

Souza Lima, José Edmilson de; UNICURITIBA - Centro Universitário Curitiba; Cazarin Braga, Priscila; UFPR; Macari da Silva, Rômulo; UFPR.
Fonte: Universidade Federal de Santa Catarina Publicador: Universidade Federal de Santa Catarina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Pesquisa qualitativa; Formato: application/pdf
Publicado em 02/08/2013 POR
Relevância na Pesquisa
37.52%
http://dx.doi.org/10.5007/1984-8951.2013v14n104p25 O artigo indaga em que medida a agrofloresta, ao possibilitar a emergência de um sujeito agroflorestal, este, uma vez constituído, possibilita a consolidação da agrofloresta, dando continuidade a um processo recursivo. Para tanto, recorre à análise dialógica de depoimentos de agricultores quilombolas que usam práticas agroflorestais para coexistir face os desafios da sociedade englobante. O sujeito que irrompe da prática agroflorestal é o sujeito que se (re)significa à medida que reinventa a si mesmo e a própria agrofloresta.; This article asks to what extent agroforestry, to enable the emergence of a subject agroforestry, this once formed, enables consolidation of agroforestry, continuing a recursive process. It is based on the analysis of dialogic testimonials from farmers maroons who use agroforestry practices to coexist face the challenges of society encompassing. The guy who breaks out of the practice of the Agroforestry is the guy who (re)means while he reinvents himself and own agroforest.