Physical Sciences and Mathematics Commons^™

Impacts Of Climate Change And Bioenergy Markets On The Profitability Of Slash Pine Pulpwood Production In The Southeastern United States, Andres Susaeta, Pankaj Lal

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

In this study, we assessed the impacts of climate change on the production of pulpwood and biomass for bioenergy, and the profitability of slash pine stands in the Southeastern United States. We employed the 3-PG (Physiological Processes Predicting Growth) model to determine the effects of future climates on forest growth and integrated it with a stand-level economic model to determine their impacts on optimal forestmanagement. We found that the average production of pulpwood increased for all sites by 7.5 m 3 ha -1 for all climatic scenarios and productivity conditions. In the case of forest biomass for bioenergy, the average …

A Sedimentological Record Of Early Miocene Ice Advance And Retreat, And-2a Drill Hole, Mcmurdo Sound, Antarctica, B. D. Field, G. H. Browne, Christopher R. Fielding, Fabio Florindo, David M. Harwood, Shelley Judge, Lawrence Krissek, Kurt S. Panter, Sandra Passchier, Stephen Pekar, Sonia Sandroni, Franco M. Talarico

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

The lowest 501 m (∼1139–638 m) of the AND-2A core from southern McMurdo Sound is the most detailed and complete record of early Miocene sediments in Antarctica and indicates substantial variability in Antarctic ice sheet activity during early Miocene time. There are two main pulses of diamictite accumulation recorded in the core, and three significant intervals with almost no coarse clasts. Each diamictite package comprises several sequences consistent with ice advance-retreat episodes.

The oldest phase of diamictite deposition, Composite Sequence 1 (CS1), has evidence for grounded ice at the drill site and has been dated around 20.2–20.1 Ma. It likely …