Colleen M Iversen Distinguished Staff Scientist and Group Leader (Plant-Soil Interactions Group) Contact iversencm@ornl.gov | 865.241.3961 All Publications Litterfall 15N Abundance Indicates Declining Soil Nitrogen Availability in a Free Air CO2 Enrichment Experiment... Scaling plant nitrogen use and uptake efficiencies in response to nutrient addition in peatlands... Missing links in the root-soil organic matter continuum... Forest fine-root production and nitrogen use under elevated CO2: Contrasting responses explained by a common principle... Nitrogen Limitation is Reducing the Enhancement of NPP by Elevated CO2 in a Deciduous Forest... Nitrogen limitation in a sweetgum plantation: Implications for carbon storage at ORNL FACE... Nitrogen uptake, distribution, turnover, and efficiency of use in a CO2-enriched sweetgum forest... Nitrogen uptake, distribution, turnover, and efficiency of use in a CO<sub>2</sub>-enriched sweetgum forest... Pagination First page « First Previous page ‹‹ … Page 3 Page 4 Current page 5 Key Links Google Scholar ORCID Organizations Biological and Environmental Systems Science Directorate Environmental Sciences Division Earth Systems Science Section Plant - Soil Interactions Group Climate Change Science Institute