Subject Area
Biology
Description
Herbicides have been found to affect greenhouse gas emissions from aquatic systems, attributed to changes in vegetation or microbial metabolic processes. Two of the most commonly used herbicides worldwide are glyphosate and 2,4-Dichlorophenoxyacetic acid (2,4-D). Due to both the increased use of mixed herbicides and global intensification of agriculture, wetlands are receiving increasing amounts of glyphosate and 2,4-D. Both glyphosate and 2,4-D are primarily degraded by 46 microorganisms, where certain species use them for nutrients and other species are inhibited by their toxicity. Even minor herbicide-induced shifts in wetland microbial communities can potentially alter ecosystem function and GHG emissions. This study investigated the effects of glyphosate and 2,4-D across a range of concentrations on GHG fluxes in freshwater microcosms by measuring flux rates of CH4 and CO2. I hypothesized that high applications of glyphosate and 2,4-D would significantly increase the flux rates of both CH4 and CO2. BIO 340 final project
Publisher
Providence College
Date
Spring 5-2-2024
Type
Poster
Format
Text
.pdf (text under image)
Language
English
