The Relationship between Dissolved Phosphorus and Glyphosate in the Lake Champlain Basin
Advisor(s)
Christopher Spiese
Confirmation
1
Document Type
Poster
Location
ONU McIntosh Center; McIntosh Activities Room
Start Date
21-4-2023 12:00 PM
End Date
21-4-2023 12:50 PM
Abstract
Phosphorus-bearing herbicides have recently been identified as potentially significant sources of phosphorus to aquatic ecosystems. Phosphorus is often the limiting nutrient in many aquatic systems, and excess phosphorus can result in algal blooms and other negative impacts. Glyphosate is one such P-bearing herbicide and is the most commonly used herbicide globally. This study examined the relationship between glyphosate use and dissolved phosphorus concentrations in the Lake Champlain basin (New York and Vermont). Lake Champlain has experienced perennial harmful algal blooms and increasing dissolved P loads. This influence of land use and agricultural practices was considered and similarities to western Lake Erie were examined. Glyphosate-derived phosphorus continues to be a potentially significant source of bioavailable P to freshwater systems in the United States.
Recommended Citation
Ingalls, Toria G., "The Relationship between Dissolved Phosphorus and Glyphosate in the Lake Champlain Basin" (2023). ONU Student Research Colloquium. 39.
https://digitalcommons.onu.edu/student_research_colloquium/2023/posters/39
Restricted
Available to ONU community via local IP address and ONU login.
The Relationship between Dissolved Phosphorus and Glyphosate in the Lake Champlain Basin
ONU McIntosh Center; McIntosh Activities Room
Phosphorus-bearing herbicides have recently been identified as potentially significant sources of phosphorus to aquatic ecosystems. Phosphorus is often the limiting nutrient in many aquatic systems, and excess phosphorus can result in algal blooms and other negative impacts. Glyphosate is one such P-bearing herbicide and is the most commonly used herbicide globally. This study examined the relationship between glyphosate use and dissolved phosphorus concentrations in the Lake Champlain basin (New York and Vermont). Lake Champlain has experienced perennial harmful algal blooms and increasing dissolved P loads. This influence of land use and agricultural practices was considered and similarities to western Lake Erie were examined. Glyphosate-derived phosphorus continues to be a potentially significant source of bioavailable P to freshwater systems in the United States.