Entity

Time filter

Source Type

Breitenfurt bei Wien, Austria

Thaler S.,Technical University Wien Karlsplatz 13 | Thaler S.,Vienna University of Technology | Zessner M.,Technical University Wien Karlsplatz 13 | Mayr M.M.,Osterreichische Vereinigung fur Agrar | And 5 more authors.
Osterreichische Wasser- und Abfallwirtschaft | Year: 2011

Summary: The production of food needed for nutrition involves the use of resources. Nutrients are appiered as fertilisers on agricultural land used for producing food and animal fodder. The products harvested from these areas, however, do not absorb all the fertiliser applied. A portion of these nutrients is washed into the streams and rivers, while another part finds its way into the atmosphere in the form of NH x, NO x, N 2O or N 2. This article is intended to describe all relevant nitrogen (N) and phosphorus (P) flows involved in the production and consumption of foodstuffs. It also presents the changes that would be brought about in these flows by applying the scenarios presented in the guidelines issued by the Deutsche Gesellschaft für Ernährung - DGE (German nutrition society).Fertiliser and animal feed amounting to almost 20 kg of N and 3 kg of P per inhabitant and year must at present be either imported to Austria or manufactured using ammonia synthesis.Should the Austrian population change its diet in the direction of recommended eating habits and food self-sufficiency, the import requirements could be reduced by 37 for N and 20 for P. As a result, the nutrient emissions to the water bodies would drop by 15 for N and 5 for P. This effect would be further enhanced on the assumption of an additional reduction of NH x deposition when neighbouring countries were also to change their eating and food production habits. If the areas that would no longer be needed for food production as a result of dietary changes were to be used for producing renewable raw materials, this would in turn reduce the decrease in resource requirements and emissions. Dietary change in Austria would result in a clear increase of resource efficiency in the nutrition process. © 2011 Springer-Verlag. Source


Zessner M.,Vienna University of Technology | Steinmuller H.,Johannes Kepler University | Wagner K.H.,University of Vienna | Krachler M.M.,Osterreichische Vereinigung fur Agrar | And 7 more authors.
Osterreichische Wasser- und Abfallwirtschaft | Year: 2011

Summary: The Gesunde Ernährung und Nachhaltigkeit - GERN (healthy nutrition and sustainability) project studied the relationship between health, nutrition, food production, consumption of resources and environmental pollution. This article discusses the general principles, basic methods involved and also present a synopsis summarising the results derived from all of these sub-aspects. Further articles published in this number consider important sub-aspects of this project. It can be seen that the eating habits of the population are an important key to efficient food production. The land, plant-nutrient and energy requirements for Austria's population could be reduced by one-third provided the Austrians observed the eating recommendations of the Deutsche Gesellschaft für Ernährung - DGE (German nutrition society). Such savings in resources would also imply a reduction in environmental pollution. © 2011 Springer-Verlag. Source


Zessner M.,Vienna University of Technology | Helmich K.,University of Vienna | Thaler S.,Vienna University of Technology | Weigl M.,Osterreichische Vereinigung fur Agrar | And 4 more authors.
Osterreichische Wasser- und Abfallwirtschaft | Year: 2011

Summary: The nutrition habits of the Austrian population differ substantially on average from the dietary recommendations issued by the Deutsche Gesellschaft für Ernährung - DGE (German nutrition society). This article studies the way in which a change in Austrian nutrition habits would affect land use, the level of foodstuff self-supply in Austria, and what alternative use would be possible for land no longer needed for food production were Austrians to change their nutrition habits. Providing food for Austrians currently requires much more arable land than is available in Austria itself. A change in eating habits towards a diet in conformity with the recommendations of the guidelines issued by the Deutsche Gesellschaft für Ernährung - DGE (German nutrition society) would reduce the land required for food production for the Austrian population by almost 30 %. In such a case, Austria would need much less than its present agricultural land to feed its population. It is mainly grassland that would no longer be needed for producing foodstuffs for Austria's population and this land would then be available for energetic or other uses, such as natural succession, landscape preservation or production for export purposes. © 2011 Springer-Verlag. Source

Discover hidden collaborations