Bannister 110

A 250-year perspective on high spring flows and climatic drivers in eastern boreal Canada from flood rings

Flood severity in eastern boreal Canada has increased in recent decades (1990–2020) and is likely to increase with projected climate change in the 21st century. The lack of instrumental hydroclimatic data makes the study of paleoenvironmental indicators necessary to identify historical trends and long-term hydroclimatic trajectories. However, in boreal environment where water is not a limiting factor to tree growth, using tree ring width as a single proxy might not allow to capture a complete spectrum of hydrological variability.

Tree-Ring Talk

Tree-Ring Talk

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.

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