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Registros recuperados: 613
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3 præsentationer fra Økologisk-Kongres 2017 Organic Eprints
Hermansen, J.E.; Kongsted, Anne Grete; Dorca-preda, Teodora; Hestbjerg, Bertel; Holm, Brian.
3 præsentationer fra pEcoSystem projektet til Økologi-Kongress 2017 1)Bedre grisemiljø versus lavere klima- og miljøpåvirkning? Eller både og? 2)10 ugers fravænning 3)Træer i folde fordele og ulemper
Tipo: Conference paper, poster, etc. Palavras-chave: Pigs; Environmental aspects.
Ano: 2017 URL: http://orgprints.org/33785/1/%C3%98ko.pdf
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4. evropská letní akademie ekologického zemědělství v CEI regionu. Sborník Abstrakt. Organic Eprints
Sborník přednášek prezentovaných na 4. evropské letní akademii ekologického zemědělství v Lednici, České republice. Temáta 4. Bioakademie byla: Ekologické zemědělství a správná zemědělská praxe a Ekologické zemědělství jako podnikání.
Tipo: Proceedings Palavras-chave: Soil; Environmental aspects.
Ano: 2004 URL: http://orgprints.org/21907/1/Bioakademie%20%C4%8Desky%202004.PDF
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A Century of Synthetic Fertilizer: 1909-2009 Organic Eprints
Paull, John.
This year marks a centenary of the synthetic fertilizer industry. German chemists, Fritz Haber and Carl Bosch, in 1909 demonstrated their industrial process for the manufacture of ammonia. The achievement won them accolades including Nobel Prizes. The output of their Haber-Bosch process can be used for either peace or war, agriculture or munitions, and the rapid adoption by Germany of this industrial process is credited with prolonging WW1. Most of the synthetic nitrogenous fertilizer of the past century, and right up to the present, has been manufactured using the Haber-Bosch process. The use of synthetic fertilizers has led to significant negative environmental outcomes. Rudolf Steiner was an early voice against chemical agriculture. Steiner's...
Tipo: Journal paper Palavras-chave: Environmental aspects; History of organics; Switzerland; Farming Systems; Farm nutrient management; Germany; Europe.
Ano: 2009 URL: http://orgprints.org/15797/1/15797.pdf
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A comparison of energy use in organic and conventional agriculture in Spain Organic Eprints
Alonso, Antonio M.; González, Rodrigo; Foraster, Laia; Guzmán, Gloria I.; García, Roberto.
The current situation of worldwide concern over the emission of greenhouse gases and its effect on the climate demands an evaluation, from the perspective of energy efficiency and more specifically of non-renewable energy sources, of tendencies for change in the management of agricultural systems that have arisen in recent years. This article uses energy balances to evaluate the contribution of organic agriculture to the increase in the energy efficiency of Spanish agriculture. The results show the higher nonrenewable energy efficiency (NREE) and the lower use of nonrenewable energy (NRE) in organic systems compared with conventional ones. Nevertheless, agricultural systems in general could still improve their energy efficiency.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2008 URL: http://orgprints.org/12687/1/Alonso_12687_ed.doc
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A controversy re-visited: Is the coccinellid Adalia bipunctata adversely affected by Bt toxins? Organic Eprints
Hilbeck, Angelika; Mc Millan, Johanna M.; Meier, Matthias; Humbel, Anna; Schläpfer-Miller, Juanita; Trtikova, Miluse.
Background: In 2008/2009, Schmidt and colleagues published a study reporting lethal effects of the microbial Bt toxins Cry1Ab and Cry3Bb on the coccinellid biological control organisms Adalia bipunctata. Based on this study, in concert with over 30 other publications, Mon810 cultivation was banned in Germany in 2009. This triggered two commentaries and one experimental study all published in the journal ‘Transgenic Research’ that question the scientific basis of the German ban or claim to disprove the adverse effects of the Bt toxins on A. bipunctata reported by Schmidt and colleagues, respectively. This study was undertaken to investigate the underlying reasons for the different outcomes and rebuts the criticism voiced by the two other commentaries....
Tipo: Journal paper Palavras-chave: Research methodology and philosophy; Environmental aspects.
Ano: 2012 URL: http://orgprints.org/23046/1/Hilbeck-etal-2012-EnvironSciEu-24-10-p1-12.pdf
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A framework for analyzing socioeconomic, health and environmental impacts of wastewater use in agriculture in developing countries AgEcon
Hussain, Intizar; Raschid, Liqa; Hanjra, Munir A.; Marikar, Fuard; van der Hoek, Wim.
Tipo: Working or Discussion Paper Palavras-chave: Waste water management; Environmental degradation; Waterborne diseases; Water quality; Irrigation practices; Aquaculture; Economic analysis; Social aspects; Health; Environmental aspects; Agriculture; Developing countries; Policy; Agricultural and Food Policy; Agricultural Finance; Environmental Economics and Policy; Health Economics and Policy; Land Economics/Use; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2001 URL: http://purl.umn.edu/92775
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A importância das áreas ripárias para a sustentabilidade hidrológica do uso da terra em microbacias hidrográficas. Organic Eprints
Attanasio, Cláudia Mira; Gandolfi, Sergius; Zakia, Maria José B.; Veniziani Junior, José Carlos Toledo; Lima, Walter de Paula.
Zonas ripárias são áreas de saturação hídrica, permanente ou temporária, cuja principal função é a proteção dos recursos hídricos de uma microbacia. Essa pesquisa comparou a adequação do uso do solo de dois cenários de planejamento agrícola de uma microbacia: o cenário convencional, representando o método usualmente empregado, que apenas considera as classes de capacidade de uso da terra, e o cenário hidrológico, que inclui a delimitação e avaliação das zonas ripárias. Um estudo de caso foi realizado na Microbacia do Ribeirão São João (3.656 ha), no município de Mineiros do Tietê (São Paulo, Brasil). Mapas de Classe de Capacidade de Uso da Terra e de Adequação do Uso do Solo foram elaborados, utilizando o Sistema de Informação Geográfica (SIG), para a...
Tipo: Journal paper Palavras-chave: Soil quality; Soil biology; Crop husbandry; Soil tillage; Soil; Landscape and recreation; Environmental aspects.
Ano: 2012 URL: http://orgprints.org/29043/1/Attanasio_A%20importancia.pdf
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A method to include machine manufacturing energy in energy balance analysis Organic Eprints
Ahokas, J.; Mikkola, H..
Manufacturing and also maintenance and repair energy demand is hard to find, there are only few research data available and this data seems no to be very reliable. Manufacturing energy damand can be calculated by estimating the mean tractor usage and calculating the manufacturing energy per consumed fuel liter. In this way it is easy to estimate the manufacturing energy, because it can be calculated with the liter/ha figures. Fuel consumption for different works in the form of liter/ha can easily be found in literature.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2007 URL: http://orgprints.org/15834/1/njf.pdf
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A modeling framework for assessing adaptation options of Finnish agriculture to climate variability and change Organic Eprints
Rötter, Reimund; Kahiluoto, H.M.; Lehtonen, H.; Aakkula, J.; Carter, T.R..
To enable ex ante assessment of alternative adaptation strategies for Finnish agriculture at multiple scales, MTT Agrifood Research Finland and partner institutes recently launched a project Integrated Modeling of Agrifood Systems (IMAGES).The project aims at developing and evaluating different component (economic and biophysical) models and link them in an integrated modeling framework.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2009 URL: http://orgprints.org/15739/1/Session_37.pdf
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A modelling framework for assessing adaptive management options of Finnish agricultural systems to climate change Organic Eprints
Rötter, R.; Lehtonen, H.; Palosuo, T.; Salo, T.; Helin , J.; Kahiluoto, H.; Aakkula, J.; Granlund, K.; Rankinen, K.; Carter, T..
Agrifood systems need to adapt to cope with the risks and opportunities related to global changes in climate, markets and policies. The impacts of these changes on food production, the environment and farmer livelihoods, as well as those of changes to technology and management practices, are not clearly understood. There is a need for improved assessment methods and tools that consider multiple factor and scale interactions (Van Ittersum et al., 2008). In recent years, European-wide consortia, such as SEAMLESS, have worked for creating flexible and widely applicable frameworks for integrated assessment and and modelling of agrifood systems That work has been valuable in developing common concepts, methods and more flexible frameworks (Ewert et al.,...
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2009 URL: http://orgprints.org/16347/1/boku.doc
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A modelling framework for assessing adaptive management options of Finnish agrifood systems to global change Organic Eprints
Rötter, R.P.; Lehtonen, H.; Kahiluoto, H.; Palosuo, T.; Aakkula, J.; Salo, T.; Helenius, J.; Helin, J.; Granlund, K.; Rankinen, K.; Carter, T..
The AGRISIMU-project represents a novel approach to integrate data and output from several existing models. While sector models linking agricultural policy, economics and land use have long existed, a spatially explicit treatment of the interactions between land use and impacts on nutrient flows, biodiversity and climate change has not yet been attempted.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2009 URL: http://orgprints.org/15740/1/POSTER.ppt
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A modelling framework for the assessment of the impacts of alternative policy and management options on the sustainability of Finnish agrifood systems Organic Eprints
Palosuo, T.; Rötter, R.P.; Lehtonen, H.; Kahiluoto, H.; Aakkula, J.; Helin, J.; Salo, T.; Helenius, J.; Granlund, J.K.; Rankinen, K.; Carter, T..
Recently, a new project focussing on integrated assessment modelling of agrifood systems (IAM-Tools) has been launched at MTT Agrifood Research Finland to gather, evaluate, refine and develop these component models and to link tem in an IAM framework for Finnish conditions.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2009 URL: http://orgprints.org/16458/1/sust.pdf
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A note on sewage sludge - risk assessments and fertilization value Organic Eprints
Magid, Jakob.
A number of recent studies of risk related to agricultural use of sewage sludge are reviewed, as a contribution to the discussion of potential for use in organic agriculture. Furthermore a very tentative assessment of the fertilization value of sewage sludge and its derived products is developed.
Tipo: Working paper Palavras-chave: Soil quality; Soil; Environmental aspects.
Ano: 2013 URL: http://orgprints.org/22629/1/22629.pdf
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A note on the environmental costs of aggregates AgEcon
Berck, Peter.
The opening of a new site for the production of aggregates has both direct and indirect impacts on the environment. The indirect impacts include changes in the environmental costs of hauling aggregates and possible changes in the level of construction activity. In this note, we show that the most likely effect of a new aggregate site is to reduce the truck miles used for aggregate hauling, which is an environmental benefit. We also show that the change in construction activity induced by a new site is likely to be extremely small.
Tipo: Working or Discussion Paper Palavras-chave: Aggregates; Building materials; Costs; Environmental aspects; Environmental Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/43918
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A PRACTICE APPLICABLE MODEL FOR THE ASSESSMENT OF MANAGEMENT IMPACT ON ORGANIC MATTER IN ARABLE SOILS Organic Eprints
Brock, Christopher; Leithold, Günter.
We present the HU-MOD-2 model for the assessment of management impact on organic matter levels in arable soils. The model aims at optimal applicability as a management support tool in framing practice and therefore requires only easily available input data. In validation, the tool proved to be capable of giving a rough estimate on soil organic matter changes in arable soils. Taking into account the low demand for input data, the modeling error seems tolerable for a practice applicable decision support tool.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Crop husbandry; Environmental aspects.
Ano: 2014 URL: http://orgprints.org/23956/1/23956_brock_leithold_owc14_MM.pdf
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A questão ambiental na origem do problema agrário brasileiro e o caso da região Sul. Organic Eprints
Nascimento, Humberto Miranda do.
A especificidade do processo de apropriação privada de terras públicas no Brasil, após 1850, é o ponto de origem dos problemas ambientais atuais no espaço rural, isso porque foi desse período em diante que a ausência de limites ambientais se tornou a regra principal da aliança entre a concentração fundiária e o progresso técnico aplicado à agricultura, comprometendo dramaticamente outras formas de acesso, bem como o uso produtivo ou não produtivo das terras e seus recursos naturais. O estudo de caso realizado na região sudoeste do Paraná, no Sul do Brasil, no entanto, demonstra que, apesar de uma estrutura agrária mais democrática, a regra de ausência de limites ambientais também é reiterada. Naquela região, o impulso básico à degradação ambiental deve-se...
Tipo: Journal paper Palavras-chave: Farming Systems; Environmental aspects.
Ano: 2008 URL: http://orgprints.org/22705/1/Nascimento_Quest%C3%A3o.pdf
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A relevância da família como unidade de análise nos estudos sobre pluriatividade. Organic Eprints
Mattei, Lauro.
O fenômeno da pluriatividade passou a ser mais estudado no Brasil na década de 1990, quando foram publicados trabalhos em todas as regiões do país. Um dos elementos centrais desta discussão diz respeito à unidade de análise relevante para se analisar a complexidade desse fenômeno. Em consonância com a literatura internacional, este artigo defende a idéia de que a família, e não a unidade de produção, deve ser o elemento balizador de estudos sobre a pluriatividade na agricultura familiar brasileira.
Tipo: Journal paper Palavras-chave: Farming Systems; Soil; Environmental aspects.
Ano: 2007 URL: http://orgprints.org/22754/1/Mattei_Relev%C3%A2ncia.pdf
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A tool for sustainability impact assessment (ToSIA)of forest-wood chains linked with a database of sustainability indicators collected within the EFORWOOD project Organic Eprints
Lindner, Marcus; Suominen, Tommi; Savolainen, Mikko; Zudin, Sergey; Palosuo, Taru; Vötter, Diana; Werhahn-Mees, Wendelin; Roubalova, Martina; Kneblik, Petr; Cerny, Martin; Verweij, Peter.
Within the EFORWOOD project new approaches to assess the sustainability impacts of forest-wood chains (FWC) using indicators of environmental, social and economic sustainability were developed.
Tipo: Conference paper, poster, etc. Palavras-chave: Environmental aspects.
Ano: 2009 URL: http://orgprints.org/16457/1/taru.pdf
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Aanpassing voer vergemakkelijkt de toepassing van pluimveemest: Eerste resultaten van pilotstudies naar effect van biologische fytase positief Organic Eprints
Nauta, Wytze J.; Cuijpers, Willemijn J.M.; Staps, J.J.M.; Scholberg, Johannes.
In Nederland zijn er nu ruim 1 miljoen biologische legkippen die jaarlijks bijna 300 miljoen eieren produceren maar ook 25.000 ton mest. De meeste legkippenhouders hebben zelf weinig grond en moeten de mest afvoeren. Het project ‘Kippenmest en Kringloop’ streeft er naar deze mest zo goed mogelijk in te zetten en te benutten binnen de biologische landbouw. Om de mest aantrekkelijker te maken voor bijvoorbeeld de akkerbouw is het belangrijk dat de mestkwaliteit en daarbij met name de verhouding tussen stikstof en fosfaat verbetert. In 2009 en 2010 zijn pilots uitgevoerd om het effect van aanpassingen in het kippenvoer op de mestkwaliteit te onderzoeken.
Tipo: Other Palavras-chave: Farming Systems; Animal husbandry; Crop husbandry; Soil; Environmental aspects.
Ano: 2010 URL: http://orgprints.org/19194/1/19.pdf
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Ação de efeitos ambientais na mortalidade natural da cigarrinha Mahanarva fimbriolata (Stal) (Hemiptera: Cercopidae) comparada a inseticidas alternativos em cultivo orgânico de cana-de-açúcar. Organic Eprints
Baptistussi, Roberta Carrara; Margarido, Luis Antonio Corrêa; Castilho, Hélio José.
O óleo de nim obtido da planta Azadirachta indica, e formulações contendo os fungos Metharizium anisoplae e Beauveria bassiana, foram empregados para o controle da cigarrinha das raízes Mahanarva fimbriolata em cultivo orgânico de cana-de-açúcar. A ação desses produtos foi comparada com a mortalidade natural do inseto, através de parcelas sem o emprego de inseticidas. O experimento foi realizado no período de março a maio de 2008, em um talhão de cana-de-açúcar da variedade RB 85 5536 conduzida no sistema orgânico, na região de Sertãozinho, SP. O delineamento estatístico utilizado foi parcelas subdivididas, com 7 tratamentos, 3 repetições e 4 épocas. Não foram observadas diferenças estatísticas significativas entre os tratamentos. A mortalidade natural...
Tipo: Journal paper Palavras-chave: Farming Systems; Fruit and berries; Environmental aspects.
Ano: 2011 URL: http://orgprints.org/22991/1/Baptistussi_A%C3%A7%C3%A3o.pdf
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