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Assessment of intensive agriculture on water quality in the Culiacan River basin, Sinaloa, Mexico

  • Advances in Environmental Biotechnology and Engineering 2018
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Abstract

The percentage of agricultural land cover effect on water quality in Culiacan River basin is studied in this research. The basin contains only intensive cropland as primary economic activity with 60% of the total area. Mathematical relationships between percentages of cropland and total phosphorus (TP) and total nitrogen (TN) concentrations were established. Sampling sites in middle and lower basin and water quality information during 2013–2018 were considered, and percentages of cropland were obtained by geospatial methods including variable area buffers. During rainy season, coefficients of determination were less than 0.2, although quantified nutrient concentration was higher, related to point sources of pollution in the basin. During dry season, coefficients of determination were higher than 0.76 and 0.90 for TN and TP, respectively, with an exponential mathematical trend. Results suggest that intensive agriculture practices generate accelerated loss of soil consolidation, which is transported to water bodies. These soils are in continuous contact with fertilizers and pesticides, mostly organophosphates which have been transported by runoff and underground flows. Using the information generated will help to establish environmental management plans, and to improve environmental diagnosis and effect in countries where there is not enough historical cartographic information and/or water quality data.

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Acknowledgments

The authors recognize the contribution of CONAGUA for the availability of the database to support the research.

The authors are grateful for the valuable advice of Ph.D. Jorge A. Benitez during the interpretation of the geohydrological data.

Funding

This work was developed as part of the project Catedras CONACyT Ref. 2572.

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Correspondence to Leonel Ernesto Amabilis-Sosa.

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Responsible Editor: Philippe Garrigues

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Mendivil-Garcia, K., Amabilis-Sosa, L.E., Rodríguez-Mata, A.E. et al. Assessment of intensive agriculture on water quality in the Culiacan River basin, Sinaloa, Mexico. Environ Sci Pollut Res 27, 28636–28648 (2020). https://doi.org/10.1007/s11356-020-08653-z

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  • DOI: https://doi.org/10.1007/s11356-020-08653-z

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