Impacts of elevated atmospheric CO2 on nutrient content of important food crops

Dietterich, Lee H. and Zanobetti, Antonella and Kloog, Itai and Huybers, Peter and Leakey, Andrew D. B. and Bloom, Arnold J. and Carlisle, Eli and Fernando, Nimesha and Fitzgerald, Glenn and Hasegawa, Toshihiro and Holbrook, N. Michele and Nelson, Randall L. and Norton, Robert and Ottman, Michael J. and Raboy, Victor and Sakai, Hidemitsu and Sartor, Karla A. and Schwartz, Joel and Seneweera, Saman and Usui, Yasuhiro and Yoshinaga, Satoshi and Myers, Samuel S. (2015) Impacts of elevated atmospheric CO2 on nutrient content of important food crops. Scientific Data, 2 (Article 150036).

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Abstract

One of the many ways that climate change may affect human health is by altering the nutrient content of food crops. However, previous attempts to study the effects of increased atmospheric CO2 on crop nutrition have been limited by small sample sizes and/or artificial growing conditions. Here we present data from a metaanalysis of the nutritional contents of the edible portions of 41 cultivars of six major crop species grown using free-air CO2 enrichment (FACE) technology to expose crops to ambient and elevated CO2 concentrations in otherwise normal field cultivation conditions. This data, collected across three continents, represents over ten times more data on the nutrient content of crops grown in FACE experiments than was previously available. We expect it to be deeply useful to future studies, such as efforts to understand the impacts of elevated atmospheric CO2 on crop macro- and micronutrient concentrations, or attempts to alleviate harmful effects of these changes for the billions of people who depend on these crops for essential nutrients.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version made available in accordance with Creative Commons Attribution License 4.0.
Faculty / Department / School: Current - Institute for Agriculture and the Environment
Date Deposited: 03 Jun 2016 04:57
Last Modified: 04 Apr 2017 23:53
Uncontrolled Keywords: climate change; zinc; iron; rice; wheat soybean elevated CO2
Fields of Research : 05 Environmental Sciences > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change
Socio-Economic Objective: D Environment > 96 Environment > 9603 Climate and Climate Change > 960301 Climate Change Adaptation Measures
Identification Number or DOI: 10.1038/sdata.2015.36
URI: http://eprints.usq.edu.au/id/eprint/28462

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