Colleen Iversen Distinguished Staff Scientist and Group Leader (Plant-Soil Interactions Group) Contact 865.241.3961 | IVERSENCM@ORNL.GOV All Publications Partitioning in trees and soil (PiTS) - a experimental approach to improve knowledge of forest carbon dynamics Plant root distributions and nitrogen-uptake efficiency predicted by an hypothesis of optimal root foraging... Soil carbon and nitrogen cycling and storage throughout the soil profile in a sweetgum plantation after 11 years of CO2-enrichment Advancing the use of minirhizotrons in wetlands Net mineralization of N at deeper soil depths as a potential mechanism for sustained forest production under elevated [CO2]... 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 ‹â¶Ä¹ … Page 3 Page 4 Current page 5 Key Links Organizations Biological and Environmental Systems Science Directorate Environmental Sciences Division Earth Systems Science Section Plant - Soil Interactions Group Climate Change Science Institute
