Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees

A research study in the Argentinean Pampas examined how the invasion of willow trees (Salix fragilis L.) in grassland riparian vegetation strips (RVS) affects runoff reduction, sediment retention, and glyphosate retention.

• In runoff simulation experiments, glyphosate retention was higher in control plots without trees, reaching nearly 74%, whereas the presence of willow trees reduced this retention. However, sediment retention did not show a significant difference between areas with trees and grassy controls.
• The presence of willow trees resulted in a runoff reduction of 63% and significantly altered biophysical properties, including aboveground biomass and soil moisture, compared to treeless areas.
• Analysis of partial correlations indicates that glyphosate retention increases with sediment retention but decreases with litter biomass and riparian slope. Runoff volume reduction is positively correlated with groundwater table depth and soil sand content, and negatively correlated with soil moisture, bulk density, and riparian slope.

APA

Inter-American Institute for Global Change Research (2025). Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees. https://iai.int/es/pub_acad/glyphosate-retention-in-grassland-riparian-areas-is-reduced-by-the-invasion-of-exotic-trees/

Chicago

Inter-American Institute for Global Change Research. Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees. 2025. https://iai.int/es/pub_acad/glyphosate-retention-in-grassland-riparian-areas-is-reduced-by-the-invasion-of-exotic-trees/.

Wikipedia

{{cite report |author=Inter-American Institute for Global Change Research |title=Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees |date=14 January 2025 |url=https://iai.int/es/pub_acad/glyphosate-retention-in-grassland-riparian-areas-is-reduced-by-the-invasion-of-exotic-trees/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{interamericaninstituteforglobalchangeresearch2025glyphosate, author = {{Inter-American Institute for Global Change Research}}, title = {{Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees}}, institution = {Inter-American Institute for Global Change Research}, year = {2025}, month = jan, url = {https://iai.int/es/pub_acad/glyphosate-retention-in-grassland-riparian-areas-is-reduced-by-the-invasion-of-exotic-trees/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }