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| Registros recuperados: 74 | |
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| Halberg, Niels. |
| The debate over agricultural sustainability continues due to the challenges of reducing externalities of intensive farming methods and preserving vital natural capital, but many definitions of sustainability are too wide to allow for a prioritized assessment. This paper uses a more narrow definition of agricultural sustainability focusing on the functional integrity of a system to highlight specific aspects of vital importance for the long-term resilience and reproducibility of agricultural systems. Key areas of resource sufficiency are also identified. Based on a review of scientific literature the relative sustainability of organic agriculture is assessed with a focus on environmental impact and resourceuse in Europe and North America. While there are... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2012 |
URL: http://orgprints.org/22190/1/22190.pdf |
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| Halberg, Niels. |
| Dänemark is global führend auf dem Gebiet der ökologischen Forschung. Dies glit sowohl für die Metoden, das Volum und die Einrechtungen als auch für die Förderung der interdisziplinären Zusammenarbejdit zwischen den Experten. Seit dem Start des ersten Forschungsprogramms 1996 unterstützt Dänemark diesen Bereich mit circa 5,3 Millionen Euro jährlich. Bisher hat das dänische Zentrum des ICROFS (International Centre for Research in Organic Food Systems) drei grosse inländische Forschungsprojekte koordiniert. Ein Weiteres Vorhaben startet im jahr 2011. ICROFS betreut darüber hinaus die europaweite Ökologiforschung im Auftrag von 22 Ländern. |
| Tipo: Newspaper or magazine article |
Palavras-chave: "Organics" in general. |
| Ano: 2010 |
URL: http://orgprints.org/18505/1/18505.pdf |
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| Halberg, Niels; Hermansen, John E.; Kristensen, Ib Sillebak; Eriksen, Jørgen; Tvedegaard, Niels. |
| Organic pig production has emerged as an alternative to the intensive conventional pig production in Europe with the animals confined indoors and often an imbalance between livestock and land for feed production and manure utilisation. The organic systems aim at improving animal welfare by supporting the pig’s natural behaviour (Hermansen et al., 2003), and improving soil fertility by better linking crop and livestock production from an agro-ecological point of view. The differences between organic and conventional pig production is more fundamental than for example differences between dairy production systems, which may be why the share of pig herds within the organic holdings is considerably lower than the percentage of pig herds in conventional... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; Pigs. |
| Ano: 2008 |
URL: http://orgprints.org/15585/1/15585.pdf |
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| Jespersen, Lizzie Melby; Baggesen, Dorte Lau; Fog, Erik; Halsnæs, Kirsten; Hermansen, J.E.; Andreasen, Lise; Strandberg, Beate; Halberg, Niels. |
| The potential contribution of organic farming to the public goods, ‘Nature and Biodiversity’, ‘Environment’, ‘Energy and Climate’, ‘Human Health and Welfare’ and ‘Animal Health and Welfare’ in Denmark is guided and partly secured by the principles and specific requirements of the EU Organic Regulation. However, other factors, such as the production type, farm size, geographical location and—not the least—the management of the farm, also influence the contribution. Using the ban on synthetic pesticides and restricted use of antibiotics, including the requirements to compensate for and prevent such uses in organic farming, as examples, the positive and negative contributions of organic farming in relation to selected public goods were analysed. The... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems Food security; Food quality and human health Research communication and quality Health and welfare Biodiversity and ecosystem services. |
| Ano: 2017 |
URL: http://orgprints.org/32338/1/10.1007_s13165-017-0193-7.pdf |
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| Bertelsen, Ulla Sonne; Halberg, Niels. |
| Organic agriculture and food markets have grown considerably, and organic agriculture addresses important challenges of European agriculture, such as the sustainable production of high-quality food, reducing dependency on high energy inputs, improving environmental and nature conservation, climate change adaptation, animal welfare and rural livelihoods. Organic farming and food systems still have a huge potential for innovation and improved solutions. Research activities will be important for this. |
| Tipo: Book chapter |
Palavras-chave: Research methodology and philosophy. |
| Ano: 2012 |
URL: http://orgprints.org/22253/1/22253.pdf |
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| Jespersen, Lizzie Melby; Halberg, Niels. |
| Research in organic food and farming is a fairly new, but rapidly ex-panding, discipline on the European research scene. One of the problems faced by the authorities seeking to initiate research programmes in organic food and farming is that the present research effort in Europe is caracterised by small research communities, which are often scattered and fragmented both geographically and institutionally. Therefore a gathering of the dispersed expertise to a critical mass in order to increase the competitive quality and relevance of the research as well as the dessemination and use of research is needed. |
| Tipo: Book chapter |
Palavras-chave: Research methodology and philosophy. |
| Ano: 2012 |
URL: http://orgprints.org/22251/1/22251.pdf |
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| Halberg, Niels; Jensen, Carsten Hvelplund. |
| Via public legislation minimum standards for the utilization of manure have been introduced as an obligatory part of fertilization planning. And many Danish livestock farmers have improved the utilization of manure during the last five to ten years. There is, however, still not consensus concerning the question of whether the results are sufficient to reduce the loss of nitrogen to ground water and the Danish marine environment to acceptable levels. In an analysis of 30 dairy farms Halberg et al. (1995) showed a variation in N surplus between 88 and 387 kg/ha depending on stocking rate and management. At ca. 1.4 livestock units1) per ha there was a difference between 250 and 116kg N/ha farm level surplus. It was concluded that differences between farms... |
| Tipo: Report chapter |
Palavras-chave: Farming Systems; Farm nutrient management. |
| Ano: 1996 |
URL: http://orgprints.org/13118/1/13118.pdf |
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| Halberg, Niels; Refsgaard, Karen; Dalgaard, Tommy. |
| Energiforbruget i jordbrugsproduktionen er interessant både fra et ressource synspunkt og fordi udledningen af CO2 fra forbrænding af fossil energi bidrager til drivhuseffekten. Både i målsætningerne for den danske Landsforening for økologisk jordbrug (LØJ) og i landboorganisationernes oplæg til Godt landmandsskab år 2000 indgår desuden mål om at reducere forbruget af fossil energi og få den bedst mulige energiudnyttelse. Ved en kombination af studier i økologiske og konventionelle kvægbrug og brug af standardværdier for dieselforbrug til de enkelte markoperationer er der opstillet modeller for energiforbruget i mark og stald. I energiregnskaberne indgår både det direkte (diesel + el) og det indirekte energiforbrug (f.eks. energi medgået til produktion af... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems Recycling; Balancing and resource management. |
| Ano: 1999 |
URL: http://orgprints.org/6554/1/6554.pdf |
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| Halberg, Niels. |
| Reduction of fossil energy use has a two-fold aim namely reducing the dependence of a limited, non-renewable resource and reduction of emissions of green house gasses (GHG). Consumers interested in reducing their carbon footprint from food consumption may consider whether a shift towards eating organic foods will do the job? This involves two questions: Is organic food more energy efficient and –given that one is dedicated to eating organic – which products and which producers results in a lower GHG emission. From a farmer perspective it is interesting to know how the carbon footprint of the production may be reduced. Over time the principles for organic agriculture has included specific references to the question of reducing the use of non-renewable... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Greenhouses and coverings. |
| Ano: 2008 |
URL: http://orgprints.org/13530/1/2_Halberg.pdf |
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| Halberg, Niels; Kristensen, Erik Steen; Refsgaard, Karen. |
| The problems of balancing agricultural production methods against environmental concern cannot be solved by focusing on single activities of livestock farming and experimental knowledge alone because of interactions between herds and crops and between the production system and the manager. An alternative method based on studies in private farms is proposed to evaluate the effects of the production intensity on pollution and resource efficiency. Energy use and crop yield in gram and grass-clover crops registered on conventional and organic mixed dairy farms were analyzed in order to facilitate modelization of energy efficiency in different production systems on different danish soil types. The energy efficiency was higher in organic crops on all soil types... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; Farming Systems; Crop husbandry. |
| Ano: 1994 |
URL: http://orgprints.org/13115/1/13115.pdf |
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| Refsgaard, Karen; Halberg, Niels; Kristensen, Erik Steen. |
| Searching for livestock production systems with a high energy utilization is of interest because of resource use and pollution aspects and because energy use is an indicator of the intensification of production processes. Due to interactions between crop and livestock enterprises and between levels of different input factors and their effects on yields, it is proposed to analyze agricultural energy utilization through system modelling of data from farm studies. Energy use in small grains, grass-clover and fodder beets registered in organic and conventional mixed dairy farms was analyzed and used together with crop yields in order to model energy prices on three Danish soil types. Conventional crop yields were higher but they also used more indirect energy... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects Farming Systems Recycling; Balancing and resource management. |
| Ano: 1998 |
URL: http://orgprints.org/6189/1/6189.pdf |
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| Knudsen, Marie Trydeman; Yu Hui, Qiao; Yan, Luo; Halberg, Niels. |
| Growing global trade with organic products has increased the demand for environmental impact assessments during both production and transport. Environmental hotspots of organic soybeans produced in China and imported to Denmark were identified in a case study using a life cycle assessment approach. Furthermore, environmental impacts of organic and conventional soybeans at farm gate were compared in the case study. The total global warming potential (GWP) per ton organic soybeans imported to Denmark revealed that 51% came from transportation and 35% from the farm level. Comparing organic and conventional soybean at farm gate showed that GWP, non-renewable energy use, acidification and eutrophication was lower per ton organic soybeans, whereas land use was... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems Processing; Packaging and transportation Environmental aspects. |
| Ano: 2010 |
URL: http://orgprints.org/17327/1/17327.pdf |
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| Halberg, Niels; van der Werf, Hayo M.G.; Basset-Mens, Claudine; Dalgaard, Randi; de Boer, Imke J.M.. |
| Different types of assessment tools have been developed in Europe with the purpose of determining the environmental impact of various livestock production systems at farm level. The assessment tools differ in terms of which environmental objectives are included and how indicators are constructed and interpreted. The paper compares typical tools for environmental assessment of livestock production systems, and recommends selected indicators suitable for benchmarking. The assessment tools used very different types of indicators ranging from descriptions of farm management and quantification of input to estimates of emissions of, e.g., nitrate and ammonia. The indicators should be useful in a benchmarking process where farmers may improve their practices... |
| Tipo: Journal paper |
Palavras-chave: Farm nutrient management. |
| Ano: 2005 |
URL: http://orgprints.org/13013/1/13013.pdf |
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| Vaarst, Mette; Escudero, Arthur Getz; Chappell, M. Jahi; Brinkley, Catherine; Nijbroek, Ravic; Arraes, Nilson A.M.; Andreasen, Lise; Gattinger, Andreas; De Almeida, Gustavo; Bossio, Deborah; Halberg, Niels. |
| Based on urgent needs for food security compounded by a changing climate which impacts and is impacted by agricultural land-use and food distribution practices, we explore the processes of action in implementing agroecological food systems. We identified the following characteristics for an agroecological food system: 1. Minimizing use of external inputs, 2. Extent of internal resource recycling, 3. Resilience, 4. Multifunctionality, 5.Building on complexity and incorporating greater systems integration,6. Contextuality, 7. Equity and, 8. Nourishment. We focus on the city-region food systems context, concluding with practical drivers for realizing more agroecological food systems in cityregion contexts. Agroecological food systems are widely... |
| Tipo: Journal paper |
Palavras-chave: Food systems. |
| Ano: 2017 |
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| Hermansen, John Erik; Noe, Egon; Halberg, Niels. |
| Farming business is like any other business constantly challenged by the changing demands and expectations from the surroundings – farming even may be more explicitly due to the comprehensive regulation and public support through subsidies within the Europe Union. The development of sustainable farming system has been a main challenge until now, where particular focus has been put on the environmental impact and how to farm without unacceptable environmental impacts. Research and developments efforts included decision support tools for farm management in relation to environmental impact (c.f. Halberg et al., 2005), and the interaction between land use for farming, landscape and ecological services has been subject to considerable efforts (c.f. Gibbon,... |
| Tipo: Report chapter |
Palavras-chave: Farming Systems. |
| Ano: 2006 |
URL: http://orgprints.org/15520/1/15520.pdf |
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| Halberg, Niels; Verschuur, Gerwin; Goodlass, Gillian. |
| Green accounts or Input-Output Accounting systems (IOA) have been developed in countries with intensive agricultural production to facilitate voluntary improvements in farm environmental performance. There is a need for an overview of indicators used and a review of results and experiences reported. Ten IOA systems covering the topics of the farm's use of nutrients, pesticides and energy were selected from a survey of 55 systems and compared in this paper. The approaches and indicators used vary from systems based on Good Agricultural Practices (GAP) to accounts based systems that use physical input-output units. Many IOA systems use farm gate nutrient balances, pesticide use per ha and energy use per kg product. These indicators are easy to calculate but... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems. |
| Ano: 2005 |
URL: http://orgprints.org/2465/1/2465.pdf |
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| Halberg, Niels. |
| The sustainable production of high quality food, reducing dependency on high energy inputs, improving environmentaland nature conservation, climate change adaptation, animalwelfare and rural livelihoods, are all important challenges faced byEuropean agriculture which can be addressed through organicagricultural practices. However, while the sector has grown dramatically in recent times,much more research needs to be done for this innovative field to come to realise its true potential. As such, the CORE Organic II ERA-Net aims at an effective and sustainable transnational researchprogramme, and has identified common research priorities for the organic sector where a transnational approach will give added value, has initiated research projects, and is... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Research methodology and philosophy. |
| Ano: 2012 |
URL: http://orgprints.org/22248/1/22248.pdf |
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| Registros recuperados: 74 | |
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