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Título: Bacterial retention in three soils of the Rolling Pampa, Argentina, under simulated rainfall
Autor(es): Behrends Kraemer, Filipe B.
Chagas, Celio I.
Irurtia, Carlos
Garibaldi, Lucas Alejandro
Fecha de publicación: 29-nov-2011
Editorial: Academic Journals
Citación: Behrends Kraemer, Filipe., Chagas, Celio I., Irurtia, Carlos. & Garibaldi, Lucas Alejandro (2011). Bacterial retention in three soils of the Rolling Pampa, Argentina, under simulated rainfall. Academic Journals; Journal of Soil Science and Environmental Management; 2 (11); 341-353
Revista: Journal of Soil Science and Environmental Management
Resumen: Bacterial retention by soils is a key factor in predicting bacterial transport through surface runoff into water bodies. The objective was to evaluate biological, soil and hydrologic factors that affect bacterial retention in three soil types of the Rolling Pampa, Argentina. Simulated rainfall was applied on field plots previously inoculated with Escherichia coli and simultaneously biological variables such as bacterial adsorption and distribution coefficient were measured at laboratory. Soil variables, particularly pH, exchangeable sodium percentage and organic carbon as well as biological variables proved to be important properties in the regulation of bacterial retention processes. There were no significant differences between the biological variables measured in soils and in the sediments. Most of the microorganisms in the runoff from all sites were either free of (in the < 2 μm sediment fraction) or associated with small soil particles (2 to 50 μm), therefore management practices, such as filter strips, should be regarded with caution when implemented.
ISSN: 2141-2391
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Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899