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
“How trees coexist” – new findings from biodiversity research published in Nature Communications
22.03.2018 | Technische Universität Dresden
Earlier flowering of modern winter wheat cultivars
20.03.2018 | Georg-August-Universität Göttingen
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
22.03.2018 | Trade Fair News
22.03.2018 | Earth Sciences
22.03.2018 | Earth Sciences