Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New tools for sustainable farming

27.08.2009
Agricultural scientists quantify sustainability

Environmentalists are just as fond of talking about it as are politicians, economists or marketing experts – "sustainability" has become a buzzword. The problem is that the term sustainability can refer to many things and have manifold interpretations. Agricultural scientists at the Technische Universitaet Muenchen have shed light on the subject.

Together with colleagues in theoretical and applied science they have managed to give the term "sustainability" a more definite meaning. They have helped to make this multi-faceted concept quantifiable – a benefit to farmers, food manufacturers and consumers alike.

Not to live at the expense of the environment and of coming generations, but rather to strike a balance between exploitation and renewal when using resources – this is a central idea of sustainability. It originated in forestry and can be reduced to one basic principle: Never fell more trees in a forest than can grow back. Today the idea of sustainability has taken on significance in all sectors of the economy, but the crux lies in the implementation. "Regenerative systems tend to be very complex. Farmers aiming at running their enterprises in a sustainable way need a solid basis for their decision-making," says Prof. Kurt-Juergen Huelsbergen from the Chair of Organic Farming and Crop Production Systems at the Technische Universitaet Muenchen.

The research question was: How can the sustainability status of farms with available operating data be determined and systematically improved? The goal was very ambitious – to improve the environmental balance of agricultural enterprises without compromising their operating efficiency and social performance. In years of meticulous work to this end, the team of researchers developed indicators and models to analyze, assess and optimize the sustainability of agricultural enterprises. After all, sustainable farming really does benefit everybody: It conserves natural resources, saves energy, reduces the need for pesticides and fertilizers, and fosters a healthier environment, more competitive farms and safe foodstuffs.

Thanks to their new indicator model, the TUM researchers are now able to describe agricultural enterprises as systems based on their material and energy flows. "We now have absolutely accurate methods for determining the emissions in air and water, as well as special tools for assessing the threat to soils from erosion and compaction. In recent years, groundbreaking methods for calculating the climate balance as well as indicators for bio-diversity have emerged. These allow us to collect data on all significant environmental effects of agriculture," said Hülsbergen. Working together with agricultural researchers from the Universitaet Halle-Wittenberg, TUM scientists integrated these model components into a single software application. In field tests at 80 farms across Germany, the computer generated "virtual enterprises" and visualized their environmental data using charts and graphs.

Of course, operating in an environmentally sound way is not enough. For it is only when an enterprise strikes a balance between ecological factors and economic and social aspects that it becomes truly sustainable. To include these factors the TUM Chair for Agricultural Economics, in collaboration with the Institute for Agricultural Engineering Potsdam-Bornim, developed a second set of indicators. This set includes relevant economic indicators such as profit or investment rate, as well as social factors such as co-determination, workload and remuneration level. With this extension the sustainability status of an agricultural enterprise is now fully quantifiable.

The German Agricultural Society has already set up a certification system according to European DIN norms based on these scientific results. If a tested enterprise can meet its target values, it receives the certificate "Sustainable Farming – Fit for the Future." The food industry is also employing the new indicator model. Two large-scale bakery enterprises have already used it to test how sustainably their grain suppliers operate.

Contact:
Technische Universitaet Muenchen
Chair of Organic Farming and Crop Production Systems
Prof. Kurt Juergen Huelsbergen or Norman Siebrecht
85350 Freising-Weihenstephan
Tel. 08161/71-3032 or -4499
Fax 01861/71-3031
E-Mail: huelsbergen@wzw.tum.de bzw. norman.siebrecht@wzw.tum.de
Further information online: www.nachhaltige-landwirtschaft.de
Free pictures: http://mediatum2.ub.tum.de/node?id=806924
Background: The Deutsche Bundesstiftung Umwelt has been sponsoring this research project since 2003.

Patrick Regan | EurekAlert!
Further information:
http://www.tum.de
http://www.wzw.tum.de/oekolandbau/

More articles from Agricultural and Forestry Science:

nachricht How much drought can a forest take?
20.01.2017 | University of California - Davis

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>