Featured Research

from universities, journals, and other organizations

Minimizing water use, maintaining productivity

Date:
January 7, 2014
Source:
Schweizerischer Nationalfonds zur Foerderung der wissenschaftlichen Forschung
Summary:
As the climate warms up, more and more farmers in Switzerland need to irrigate their crops. This is problematic because many rivers carry less water. If the increase in water use is limited, agricultural production will not be significantly lowered.

As the climate warms up, more and more farmers in Switzerland need to irrigate their crops. This is problematic because many rivers carry less water. If the increase in water use is limited, agricultural production will not be significantly lowered. This conclusion was reached on the basis of models created in a project of the National Research Programme "Sustainable Water Management" (NRP 61).

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.

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.


Story Source:

The above story is based on materials provided by Schweizerischer Nationalfonds zur Foerderung der wissenschaftlichen Forschung. Note: Materials may be edited for content and length.


Cite This Page:

Schweizerischer Nationalfonds zur Foerderung der wissenschaftlichen Forschung. "Minimizing water use, maintaining productivity." ScienceDaily. ScienceDaily, 7 January 2014. <www.sciencedaily.com/releases/2014/01/140107092819.htm>.
Schweizerischer Nationalfonds zur Foerderung der wissenschaftlichen Forschung. (2014, January 7). Minimizing water use, maintaining productivity. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2014/01/140107092819.htm
Schweizerischer Nationalfonds zur Foerderung der wissenschaftlichen Forschung. "Minimizing water use, maintaining productivity." ScienceDaily. www.sciencedaily.com/releases/2014/01/140107092819.htm (accessed August 21, 2014).

Share This




More Earth & Climate News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) — Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) — Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) — A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
Powered by NewsLook.com
Disquieting Times for Malaysia's 'fish Listeners'

Disquieting Times for Malaysia's 'fish Listeners'

AFP (Aug. 19, 2014) — Malaysia's last "fish listeners" -- practitioners of a dying local art of listening underwater to locate their quarry -- try to keep the ancient technique alive in the face of industrial trawling and the depletion of stocks. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins