Material in this section originates from the following categories in our Subject Index:

Nitrogen (Progressive Limitation Hypothesis: Loblolly Pine)

Summary

* -- The Progressive Nitrogen Limitation Hypothesis: Notoriously Famous ... but Fading Fast

* -- CO2-Enriched Trees Extracting Needed Nitrogen from Nitrogen-Poor Soil

* -- How a Long-Term CO2-Induced Increase in Forest Productivity is Maintained on a Nitrogen-Impoverished Soil

* -- Net Primary Productivity at the Duke Forest FACE Facility

* -- The Duke Forest FACE Experiment at the Twelve-Year Point of Its Continuance

Nine Years of Soil Carbon and Nitrogen Relations in the Duke Forest FACE Study

The Long-Term Response of Forests to Atmospheric CO2 Enrichment

Fine-Roots of Loblolly Pines in the Duke Forest FACE Study

Eight Years of Free-Air CO2 Enrichment of Loblolly Pines

Duke Forest Trees Exposed to Elevated Atmospheric CO2 Continue to Sop Up Carbon at Greatly Enhanced Rates

Will Insufficient Soil Nitrogen Limit Duke Forest's Ability to Continue to Positively Respond to Elevated Atmospheric CO2?