Bannister 110

Special Tree-Ring Talk **9AM

Linking carbon fluxes, tree-rings, and xylem anatomy to better understand the processes of carbon allocation to aboveground woody biomass under drought conditions

Carbon allocation to woody tissues is a key set of processes underlying biomass increment during a tree’s growing season. Existing research has rarely addressed this process from a long-term perspective and its interannual to decadal dynamics remain poorly constrained. This also limits our understanding of the sub-seasonal connections and dynamics between carbon uptake and stem growth under a warming climate.

Tree-Ring Talk

At the crossroads: how tree-ring reconstructions can shape policy to protect vulnerable communities in the Colorado Basin

Tree-Ring Talks Seminar

Wednesday, October 4 at Noon, MST

 

Please join us for a presentation by Dr. George Rhee on "At the crossroads: how tree-ring-reconstructions can shape policy to protect vulnerable communities in the Colorado Basin" in Bannister 110 or via zoom.

 

Abstract

Single-year dating of Siberian Scythian kurgans with 14C spike

Abstract

Tree-Ring Talk

Photosynthetic carbon isotope discrimination in trees: observations, predictions, and drivers

Abstract: Under elevated CO2, photosynthetic carbon isotope discrimination is expected to increase in response to photosynthesis stimulation driven by the growth of atmospheric CO2. While this response is widely documented in laboratory, field experiments and short-term observations, long-term proxies indicate that such response is not universally observed in forested ecosystems.

Tree-Ring Talk

Tree-Ring Talk** Welcome Back Event

Join us for the Kickoff event for the Autumn 2023 Tree-Ring Talk series. 

 

Email talks@ltrr.arizona.edu for Zoom link (or visit Bannister Building Room 110 for live presentation).

Impact of persistent droughts on forests in Mediterranean Chile

Global warming is concurrently associated with a rise in occurrences of drought episodes in numerous regions worldwide, with central Chile a sad example. This region is the only Mediterranean bioregion of South America, which is considered a biodiversity hotspot due to high endemism levels and high anthropic pressure. These ecosystems since 2010 have been impacted by a period of below-average rainfall, a so-called Mega Drought (MD), so their contribution to the regional carbon sink is at risk.

Subscribe to Bannister 110