Digging deeper.Experimental evidence from a diverse set of forested ecosystems indicates that CO2-enrichment may lead to deeper rooting distributions. Altered rooting distributions are expected to affect important ecosystem processes such as root physiology and soil nutrient cycling.
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Publications.Iversen CM. 2010. Digging deeper: Fine root responses to rising atmospheric [CO2] in forested ecosystems. New Phytologist 186: 346-357.
*This paper was a finalist in the New Phytologist Tansley Medal competition. |
Related Publications.Garten CT, Iversen CM, Norby RJ. 2011. Litterfall 15N abundance indicates declining soil nitrogen availability in a free air CO2-enrichment experiment. Ecology 92: 133-139.
McMurtrie RE, Iversen CM, Dewar RC, Medlyn BE, Nasholm T, Pepper DA, Norby RJ. 2012. Plant root distributions and nitrogen uptake predicted by a hypothesis of optimal root foraging. Ecology and Evolution 2: 1235-1250. |
Data Sets.See freely-available ORNL FACE data sets here: https://facedata.ornl.gov/ornl/.
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This research was funded by the Office of Biological and Environmental Research in the U.S. Department of Energy's Office of Science.