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| Registros recuperados: 617 | |
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| Montenegro, Abelardo A. A.; Ribeiro, Mateus R.; Montenegro, Suzana M. G. L.; Corrêa, Marcus M.; Santos, Thais E. M.. |
| A disponibilidade de recursos hídricos para usos múltiplos, com ênfase no abastecimento público, é questão da mais alta relevância e depende de aspectos edáficos, hidrológicos, ambientais e de gestão. Avaliou-se o potencial hídrico de bacias hidrográficas da Ilha de Fernando de Noronha, com vistas a dar suporte à gestão da água no arquipélago; para isto se delimitaram e caracterizaram cinco bacias representativas e se estimou a precipitação efetiva através do método da Curva Número. Adicionalmente, foram investigadas as características de infiltração dos principais solos do arquipélago. Verifica-se que, em geral, as bacias hidrográficas têm limitada infiltrabilidade e elevado potencial de escoamento, constatando-se o potencial de incremento de oferta de... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Soil; Environmental aspects. |
| Ano: 2009 |
URL: http://orgprints.org/22751/1/montenegro_Potencialidades.pdf |
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| Frehner, Anita; Müller, Adrian; Schader, Christian; de Boer, Imke J.M.; Van Zanten, Hannah H.E.. |
| Dietary patterns have manifold impacts on human health and the environment. Impact assessments are employed to compare impacts of single food items or of diets as a whole, either in their current state or for theoretical scenarios. However, conclusions from impact assessments focusing on theoretical scenarios are diverse, and occasionally even contradicting. The role of animals and types of production are key aspects of these discussions. Therefore, the aim of this study is to analyse the methodological choices that cause these differing conclusions. We find that consideration of food-system-wide consequences of dietary change in the impact assessment, differentiation between land use categories, and production units are central for determining which... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Environmental aspects. |
| Ano: 2018 |
URL: http://orgprints.org/35003/1/Frehner_etal_2018_Proceeding-LCAFood%202018-p559-562.pdf |
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| Priori, S.; Lagomarsino, A.; Agnelli, A.E.; Valboa, G.; Castaldini, M.; Pellegrini, S.; Simoni, S.; D'Avino, L.; Gagnarli, E.; Guidi, S.; Goggioli, D.; Landi, S.; D'Errico, G.; Perria, R.; Puccioni, S.; Leprini, M.; Zombardo, A.; Storchi, P.; Costantini, E.A.C.. |
| Land transformation to adapt fields to mechanization in perennial crop farming is a common practice which includes land levelling, deep ploughing, stone-breakage and clearing, application of fertilizers and amendments. Manipulation of the natural soil profile along its entire depth can severely disturb the naturally existing chemical physical,biological and hydrological equilibrium (Costantini and Barbetti, 2008; Costantini et al., 2013). The most common effects of the land transformation are mixing of soil horizons and soil truncation, which result in reduction of soil depth and available water, organic matter depletion, enrichment of calcium carbonate content in the topsoil,imbalance of some element ratio, and decline in the activity and diversity of... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Nutrient turnover; Soil; Biodiversity and ecosystem services; Landscape and recreation; Environmental aspects. |
| Ano: 2016 |
URL: http://orgprints.org/30955/1/Atti_Congresso_SISS2015.pdf |
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| Hansen, Martin N.. |
| Under lagring af fast husdyrgødning sker der en kraftig omsætning af husdyrgødningen, hvil-ket forøger muligheden for at opnå en mere ensartet spredefordeling ved udbringning. Lagrin-gen forøger dog risikoen for, at en betydelig andel af husdyrgødningens kvælstofindhold tabes ved ammoniakfordampning, denitrifikation og udvaskning. Tabet reducerer gødningsværdien af husdyr¬gødningen og kan medføre uønskede miljøpåvirkninger. Ammoniaktabet i forbindel-se med udbringning er dog lavere fra lagret fast husdyrgødning, hvilket dog ikke modsvarer det forøgede tab af kvælstof, der finder sted under lagring. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Environmental aspects. |
| Ano: 2002 |
URL: http://orgprints.org/5620/1/5620.pdf |
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| Rasa, Kimmo; Räty, Mari; Nikolenko, Olga; Horn, Rainer; Yli-Halla, Markku; Uusi-Kämppä, Jaana; Pietola, Liisa. |
| Water repellency index R was measured in a heavy clay and a sandy loam, used as arable land or buffer zone (BZ). Further, effect of management practise and ageing of BZs were studied. Water repellency was proved to be a common phenomenon on these soils. Harvesting and grazing increased water repellency as does ageing.Low water repellency is supposed to prevent preferential flows and provide evenly distributed water infiltration pattern through large soil volume, which favours nutrient retention. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects. |
| Ano: 2006 |
URL: http://orgprints.org/16280/1/pollutants6.pdf |
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| Refsgaard, Ph. D. Karen. |
| The position taken in this study is that long run sustainability is a complex and context dependent concept, implying that the estimation of value depends on the issues at stake, the decision actors involved and the criteria being emphasised. Sustainability connects the economic process explicitly to the natural environment and the study elucidates how thermodynamics can supplement, although not substitute economic analyses. Both natural and social systems are multidimensional and changes are difficult to assess in a simple, one-dimensional way. The standard assumptions in many decision methods concerning rationality are thus hardly adequate. The empirical focus is on agricultural production and wastewater handling and in four papers decision... |
| Tipo: Thesis |
Palavras-chave: Environmental aspects; Research methodology and philosophy; Farming Systems. |
| Ano: 2001 |
URL: http://orgprints.org/6192/1/avhandling2001.2.html |
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| Dalgaard, T.. |
| Today, agriculture and food production has major implications for the use of fossil energy and other resources, and a sustainable development implies transition towards new systems, based on renewable resources. The reduction of external inputs to the farm through efficient management of materials and energy is a central part of the organic principles (IFOAM 2013), and in most countries standards are implemented in the form of nationally adapted, organic farming regulations, with significant implications for the potential energy and matter flows in- and out of the agricultural systems, and thereby the energy balance and the use of renewable resources. Consequently, it is important to develop new and more resource efficient production systems mitigating... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/23561/1/23561.pdf |
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| The Danish Research Centre for Organic Farming (DARCOF) was established in 1995 as a so-called "centre without walls" where the actual research is performed in interdisciplinary collaboration between the participating research groups. The remit of DARCOF is to coordinate research for organic farming, with a view to achieving optimum benefit from the allocated resources. Its aim is to elucidate the ideas and problems faced in organic farming through the promotion of high quality research of international standard. |
| Tipo: Research Programme description |
Palavras-chave: Environmental aspects. |
| Ano: 2023 |
URL: http://orgprints.org/5426/1/5426.pdf |
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| Costa, Cristina Amaro; Correia, Paula; Correia, Helena Esteves; Guiné, Raquel; Rodrigues, Pedro; Teixeira, Daniela; Guerra, Luis Touriño; Basile, Salvatori. |
| Recently, family farming has become a central element in the public debate over its fundamental role in rural areas. Family farming is an important way to ensure agricultural and forestry production, as well as fishing and grazing, managed and run by a family that mostly depends on unpaid family labour, both women and men. From the 570 million farms in the world, over 500 million are family farms. In Portugal, 96% of the farms are of the family-type, which permanent and predominantly use labour belonging to the family. There are numerous examples in which, through organic farming, family farming can be lead to new heights of success and innovation, with direct impact on the increase in the farm income. The benefits that may accrue from the adoption of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farming Systems; Technology transfer; Environmental aspects. |
| Ano: 2014 |
URL: http://orgprints.org/26653/7/26653.pdf |
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| Allain, Sophie. |
| Today, organic farming is also a provider of public goods, promoted by an increasing number of actors. It may be seen as a “commons”, that has to be shaped and developed by new types of collective commitments to study. Two French experiences in that perspective aiming to protect water resources and led by local authorities have been analyzed. The study shows that the local authority behaves as a facilitator of territorial development plan. It acts through two complementary levers, the control of supply (land and ownership) and demand (institutional catering). Whereas environmental efficiency remains to be proved, the projects rely on an increasing collective mobilization and develop according to their ability for budding and territorial rooting. New modes... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Social aspects; Air and water emissions; Environmental aspects. |
| Ano: 2013 |
URL: http://orgprints.org/25285/1/Allain_2013_CIAG_Vol32.pdf |
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| Theurl, M.C.; Markut, T.; Hörtenhuber, S.; Lindenthal, T.. |
| The aim of this broad conceived study was to analyse greenhouse gas emissions (GHGE) of more than 130 foodstuffs from two organic agricultural production methods (Organic premium brand and Organic EU-standard) as compared to conventional farming in Austria. The system boundaries of the life-cycle study ranged from agriculture and its upstream supply chain to the retailer, including changes in soil organic carbon (humus) and land use change. In conclusion, all organic products in both organic methods showed lower GHGE per hectare but also per kg of foodstuff than comparable, conventional products. Therefore, the product carbon footprint (PCF) of organic products was lower throughout the implemented study. Organic dairy products resulted in 10 to 21 % lower... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Soil; Environmental aspects. |
| Ano: 2011 |
URL: http://orgprints.org/17632/3/Theurl_17632.pdf |
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| Registros recuperados: 617 | |
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