Climate change will lead to regional water shortages. If the use of river water is not regulated, both water quality and biodiversity could be negatively affected. Overuse can be avoided by redirecting water from larger bodies of water via pipes and distribution networks. This comes at a considerable price and has an impact on the environment.
Testing options on the basis of case studies
Researchers of an NRP 61 project investigated alternatives not in terms of sourcing more water but rather in terms of reducing the agricultural need for water. Based on models and an interdisciplinary approach, they tested a variety of options for a dry area (Plain of the Broye) and an area less dry (Lake of Greifen) up to 2050. They also took into consideration a number of economic and political conditions.
"The aim is to maintain productivity while minimising the use of water and the impact on the environment," says Jürg Fuhrer, leader of the project "Water demand in Swiss agriculture and sustainable adaptive options for land and water management" (AGWAM) at Agroscope.
The authors of the study have reached the conclusion that, even if the climate changes, the cultivation of agricultural land will remain viable, at least theoretically, in areas that are threatened by droughts such as the Plain of the Broye. Farmers in these areas need to limit the climate-related increase of water use and at the same time the losses in production and income. The necessary adaptations include improving irrigation efficiency, changing the mix of cultivated crops to include more winter crops such as winter rape seed or barley, adapting soil management and adjusting the organisation of agricultural land, i.e. which crops are best grown in which place.
Step-by-step change to more water-sensitive production
The aspect of the study that deals with farm management shows that farms will take measures to reduce their water needs if the price of water rises and water quotas are introduced. An environmental performance analysis shows, however, that agricultural production will continue to negatively impact the environment even if all measures considered in the study are taken. Further steps towards a resource-efficient practice are necessary, in particular, if the emission of greenhouse gases is to be reduced.
Society, the authorities and politicians will have to think about introducing incentives and rules to encourage a step-by-step transition towards an agricultural production that is more economical with water. Alternatively, they can implement purely technical and less ecological measures to maintain the status quo. His team's study, says Fuhrer, provides the scientific basis for a discussion which will become increasingly pertinent in view of the expected climate change and the related risks for agriculture.(*) Jürg Fuhrer, Danielle Tendall, Tommy Klein, Niklaus Lehmann, and Annelie Holzkämper (2013). Water Demand in Swiss Agriculture - Sustainable Adaptive Options for Land and Water Management to Mitigate Impacts of Climate Change (NRP61 Project AGWAM)
1st Agroscope Sustainability Conference
On 23 January 2014, the Institute of Sustainability Studies at Agroscope will organise a conference on "Water in agriculture - today and tomorrow". The researchers will present and discuss new insights and approaches for adapting to the changing climate. The political environment in which this adaptation will have to take place will also be discussed.
On this subjectMore detailed information and registration (by 14 January) for the Agroscope Sustainability Conference on "Water in Agriculture - today and tomorrow":
http://www.agroscope.ch/veranstaltungen/00610/index.html?lang=de&direction=asc&orderbyThe National Research Programme “Sustainable Water Management” (NRP 61)
ContactProfessor Jürg Fuhrer
Media - Abteilung Kommunikation | idw
Farming with forests
23.09.2016 | University of Illinois College of Agricultural, Consumer and Environmental Sciences (ACES)
Ecological intensification of agriculture
09.09.2016 | Julius-Maximilians-Universität Würzburg
Heavy construction machinery is the focus of Oak Ridge National Laboratory’s latest advance in additive manufacturing research. With industry partners and university students, ORNL researchers are designing and producing the world’s first 3D printed excavator, a prototype that will leverage large-scale AM technologies and explore the feasibility of printing with metal alloys.
Increasing the size and speed of metal-based 3D printing techniques, using low-cost alloys like steel and aluminum, could create new industrial applications...
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...
Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.
Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
30.09.2016 | Event News
29.09.2016 | Event News
28.09.2016 | Event News
30.09.2016 | Materials Sciences
30.09.2016 | Earth Sciences
30.09.2016 | Life Sciences