Effects of Agricultural Practices on Water Quality in River Basins in United States
DOI:
https://doi.org/10.47604/ijes.3465Keywords:
Agricultural Practices, Water QualityAbstract
Purpose: To aim of the study was to analyze the effects of agricultural practices on water quality in river basins in United States.
Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.
Findings: Agricultural practices in the U.S., particularly fertilizer and pesticide use, significantly degrade water quality in river basins. Excessive nutrient runoff causes eutrophication, harmful algal blooms, and oxygen depletion, while pesticide use contaminates both surface and groundwater. Soil erosion and irrigation return flows further contribute to water quality issues by increasing sediment and nutrient pollution.
Unique Contribution to Theory, Practice and Policy: The theory of ecological modernization, the tragedy of the commons & the systems theory may be used to anchor future studies on the effects of agricultural practices on water quality in river basins in United States. Farmers should be encouraged to adopt best management practices (BMPs), such as reduced pesticide use, organic farming, and crop rotation, which have been shown to reduce agricultural runoff and improve water quality. Policies should be enacted or strengthened to regulate the use of fertilizers and pesticides, particularly in regions where intensive agriculture is prevalent.
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References
Earthwatch. (2024). UK rivers contain 'cocktail of chemicals and stimulants' endangering aquatic life. The Guardian. Retrieved from https://www.theguardian.com/environment/2024/oct/21/uk-rivers-chemicals-stimulants-phosphates-nintrate-endangering-aquatic-life
Funaki, H. (2025). Vertical distribution of harmful algae in the sediment of Uranouchi Inlet, Japan. Frontiers in Microbiology. https://doi.org/10.3389/fmicb.2025.1612811
Juncal, A., Smith, R., & Wu, X. (2023). Nutrient runoff from agricultural practices and its impact on waterway health: A global review. Environmental Monitoring and Assessment, 195(8), 2345–2362.
Juncal, L., Ramos, M., & Blanco, J. (2023). Nutrient runoff from agricultural practices and its effects on waterway health: A comprehensive review. Environmental Science and Pollution Research, 30(4), 3421-3435. https://doi.org/10.1007/s11356-023-24649-x
Kang, D., Lee, J., & Kim, H. (2024). Impact of agricultural return flow on river water quality: A case study from South Korea. Journal of Environmental Management, 312, 113598. https://doi.org/10.1016/j.jenvman.2023.113598
Kang, Y., Lee, J., & Kim, M. (2024). Impact of agricultural return flow on water quality in river basins in South Korea. Environmental Science and Technology, 58(4), 1145–1156.
Liu, Y., Zhang, Q., & Li, X. (2024). The role of small water bodies in filtering agricultural runoff and improving river water quality. Environmental Pollution, 289, 117902. https://doi.org/10.1016/j.envpol.2022.117902
Lynch, A. J. (2023). People need freshwater biodiversity. Wiley Interdisciplinary Reviews: Water, 10(5), e1633. https://doi.org/10.1002/wat2.1633
Pakoksung, S., Chokchaisawasdikul, T., & Srisuk, N. (2025). Seasonal dynamics of water quality in relation to land use changes in an agricultural river basin in Thailand. Environmental Science and Pollution Research, 32(2), 1652–1669.
Pakoksung, S., Suksun, S., & Cheewapreecha, S. (2025). Seasonal dynamics of water quality in relation to land use changes in agricultural river basins in Thailand. Science of the Total Environment, 824, 153697. https://doi.org/10.1016/j.scitotenv.2022.153697
Ramião, A., Pereira, T., & Fernandes, M. (2022). Effectiveness of sustainable agricultural practices in reducing nutrient and sediment export from river basins in Portugal. Agricultural Water Management, 268, 107652. https://doi.org/10.1016/j.agwat.2022.107652
Ramião, J., Silva, P., & Teixeira, F. (2022). Sustainable agricultural practices and water quality in river basins: A case study in Portugal. Agricultural Water Management, 255, 107041.
U.S. Environmental Protection Agency (EPA). (2022). Groundwater pollution in California's Central Valley. U.S. EPA. Retrieved from https://en.wikipedia.org/wiki/Central_Valley_groundwater_pollution
Xu, H., Zhang, Y., & Li, Z. (2022). Effects of fertilizer application on river water quality in China: A panel data approach. Environmental Pollution, 279, 116970.
Xu, X., Zhang, T., & Wang, Z. (2022). Fertilizer application and its effects on river water quality across 46 cities in China. Environmental Monitoring and Assessment, 194(5), 252. https://doi.org/10.1007/s10661-022-09844-1
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Copyright (c) 2025 Daniel Harris
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