El uso del suelo en las cuencas de captación condiciona la calidad del agua en embalses del sudeste peninsular ibérico
[EN] We studied the total nitrogen (TN) concentration, the total phosphorus (TP) concentration, and the TN/TP ratios in 12 reservoirs located in the southern Iberian Peninsula, to study the influence of land-use in the reservoir watershed on the trophic status of these systems. The TN/TP ratios indi...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/170622 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/170622 |
| Access Level: | acceso abierto |
| Palavra-chave: | Nitrogen Phosphorus Land use Agriculture Urban areas Trophic status Reservoirs Nitrógeno Fósforo Uso del suelo Agricultura Áreas urbanas Estado trófico Embalses |
| Resumo: | [EN] We studied the total nitrogen (TN) concentration, the total phosphorus (TP) concentration, and the TN/TP ratios in 12 reservoirs located in the southern Iberian Peninsula, to study the influence of land-use in the reservoir watershed on the trophic status of these systems. The TN/TP ratios indicated limitation by P or co-limitation depending on the system. Only the percentage of agriculture areas significantly classified the reservoirs by their P and N concentrations, while the percentage of urban areas also grouped the reservoirs by their N contents, according to the univariate tree regression analyses. We found a positive relationship between the percentage of agriculture areas and the trophic state of the reservoirs, according to the Carlson index (TSI), that indicates a deterioration in water quality in the reservoirs induced by agricultural activity. |
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