Global trends in nitrate leaching research in the 1960–2017 period
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URI: http://hdl.handle.net/10835/14650
DOI: https://doi.org/10.1016/j.scitotenv.2018.06.215
DOI: https://doi.org/10.1016/j.scitotenv.2018.06.215
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Padilla Ruiz, Francisco Manuel; Gallardo Pino, Marisa; Manzano Agugliaro, Francisco RogelioDate
2018-12-01Abstract
Nitrate leaching is the process whereby the nitrate (NO3−) anion moves downwards in the soil profile with soil water. Nitrate leaching is commonly associated with chemical nitrogen (N) fertilizers used in agriculture. Nitrate leaching from different sources and contamination of surface and groundwater is a global phenomenon that has prompted social and political pressure to reduce nitrate leaching and contamination of water bodies. This bibliometric study analyzed global trends in nitrate leaching research. The results showed a rising interest in the last decades in this topic; given the growth tendency over the last years, it was envisaged that the importance on nitrate leaching research will continue increasing in the future. Knowledge on nitrate leaching was mostly disseminated through scientific publications (90% of total documents recovered), both as journal articles and reviews, classified in the Scopus database in the Agricultural, Biological and Environmental Sciences areas. Mo...