Attenuation of Herbicides in Subarctic Environments, PHASE 2

Abstract and project information last updated: 1 March 2011. Project updates are dated below.

AUTC
Project
Number
309026
Principal
Investigator
David L. Barnes (UAF)
dlbarnes@alaska.edu
Funding
Agency

US Department of Transportation (RITA)

Alaska Railroad

Project
Budget
200000
Start
Date
1 July 2009
Estimated
End Date
31 May 2011

Abstract

The Alaska Railroad Corporation needs effective, low-cost ways to manage vegetation growth along rail lines. This project, in partnership with the USDA Agricultural Research Service, is investigating the environmental fate, attenuation, and effectiveness of herbicides currently being evaluated for use along Alaska’s transportation corridors. Questions addressed include: Once these herbicides are applied, how long does it take for them to enter the soil? Where do they go? How long does it take for them to dissipate?
The herbicides have been applied near Seward, the southern end of the ARRC rail line. Researchers are tracking these applications over two years through a series of soil and groundwater samples to obtain site-specific attenuation data. They are also performing mass balance studies on the herbicides using lysimeters installed at the Experimental Farm on the Fairbanks campus. Results will yield a better understanding of the environmental fate of these herbicides in Alaska’s maritime subarctic zone.

Final Report

Thesis: Herbicides
27 Mar 2013

Attenuation of the Herbicide Glyphosate Along Railroad Corridors in Alaska
Nellie B. Ballou
Ballou_thesis_4_18_11.pdf