Navigation Links
Improving 'crop per drop' could boost global food security and water sustainability
Date:5/29/2013

MINNEAPOLIS / ST. PAUL (05/29/2013) Improvements in crop water productivity the amount of food produced per unit of water consumed have the potential to improve both food security and water sustainability in many parts of the world, according to a study published online in Environmental Research Letters May 29 by scientists with the University of Minnesota's Institute on the Environment (IonE) and the Institute of Crop Science and Resource Conservation (INRES) at the University of Bonn, Germany.

Led by IonE postdoctoral research scholar Kate A. Brauman, the research team analyzed crop production, water use and crop water productivity by climatic zone for 16 staple food crops: wheat, maize, rice, barley, rye, millet, sorghum, soybean, sunflower, potato, cassava, sugarcane, sugar beet, oil palm, rapeseed (canola) and groundnut (peanut). Together these crops constitute 56 percent of global crop production by tonnage, 65 percent of crop water consumption, and 68 percent of all cropland by area. The study is the first of its kind to look at water productivity for this many crops at a global scale.

The wide range of variation in crop water productivity in places that have similar climates means that there are lots of opportunities for improving the trade-off between food and water. And the implications of doing so are substantial: The researchers calculated that in drier regions, bringing up the very lowest performers to just the 20th percentile could increase annual production on rain-fed cropland enough to provide food for an estimated 110 million people without increasing water use or using additional cropland. On irrigated cropland, water consumption could be reduced enough to meet the annual domestic water demands of nearly 1.4 billion people while maintaining current production.

"Since crop production consumes more freshwater than any other human activity on the planet, the study has significant implications for addressing the twin challenges of water stress and food insecurity," says Brauman.

For example, if low crop water productivity in precipitation-limited regions were raised to the 20th percentile of water productivity, specific to particular crops and climates, total rain-fed food production in Africa could be increased by more than 10 percent without exploiting additional cropland. Similar improvements in crop water productivity on irrigated cropland could reduce total water consumption some 8󈝻 percent in precipitation-limited regions of Africa, Asia, Europe and South America.

Because the study is global in scope, it is able to identify potential locations for interventions, crops to pay attention to, and opportunities for the biggest improvements in crop water management. Specific solutions for improving crop per drop will vary by location and climatic zone over time, however.


'/>"/>

Contact: Todd Reubold
reub0002@umn.edu
612-624-6140
University of Minnesota
Source:Eurekalert

Related biology news :

1. Improving survival of pig sperm
2. Research improving breast cancer treatment by targeting tumor initiating cells
3. Improving DNA amplification from problematic plants
4. Improving the development of new cancer models using an advanced biomedical imaging method
5. U of Minn. receives $1.8 million grant for improving efficiencies in fuel and plastics production
6. GOCEs second mission improving gravity map
7. Improving water quality can help save coral reefs
8. Waste to watts: Improving microbial fuel cells
9. Validity CTO to Present Natural ID Solutions for Improving Mobile Risk Management and User Experience at NFC Solutions Summit 2012
10. Global Surgical Devices Market Growth Driven by Improving Standards of Living and Longer Life Expectancies, Research Shows
11. Improving equine health: Research studies vaccinations to protect newborn foals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/21/2016)... 21, 2016 NuData Security announced today that ... of principal product architect and that Jon ... customer development. Both will report directly to ... moves reflect NuData,s strategic growth in its product ... customer demand and customer focus values. ...
(Date:6/15/2016)... ALBANY, New York , June 15, 2016 ... published a new market report titled "Gesture Recognition Market ... Trends and Forecast, 2016 - 2024". According to the ... at USD 11.60 billion in 2015 and is ... and reach USD 48.56 billion by 2024.  ...
(Date:6/7/2016)... , June 7, 2016  Syngrafii Inc. ... a business relationship that includes integrating Syngrafii,s patented ... branch project. This collaboration will result in greater ... the credit union, while maintaining existing document workflow ... http://photos.prnewswire.com/prnh/20160606/375871LOGO ...
Breaking Biology News(10 mins):
(Date:11/30/2016)... Nov. 30, 2016  GenomOncology today announced the appointment of ... Medical Affairs.  Dr. Coleman will oversee clinical ... proprietary knowledge-enabled platform. The GenomOncology software suite empowers molecular pathologists ... data and clinical decision support, from quality control through reporting. ... , , ...
(Date:11/30/2016)... SEATTLE , Nov. 30, 2016  The ... Allen Cell Collection: the first publicly available collection ... stem cells that target key cellular structures with ... Medical Research, these powerful tools are a crucial ... cells to better understand what makes human cells ...
(Date:11/30/2016)... , 30. November 2016   ... hat heute die Unterzeichnung einer Reihe von ... zufolge wird Evotec AG Screeningleistungen für Mercks ... bereitstellen. Der Zugriff auf diese Bibliotheken in ... eröffnet einen schnelleren Weg zur Ermittlung und ...
(Date:11/30/2016)... ... November 30, 2016 , ... Energetiq Technology, ... introduces the 5th generation, ultra-bright, Laser-Driven Light Source, the EQ-77, at the MRS ... technology, the EQ-77 offers higher radiance and irradiance from a truly broadband white ...
Breaking Biology Technology: