El uso del suelo en las cuencas de captación condiciona la calidad del agua en embalses del sudeste peninsular ibérico

  1. León-Palmero, Elizabeth 1
  2. Reche, Isabel 1
  3. Morales-Baquero, Rafael 1
  1. 1 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

Journal:
Ingeniería del agua

ISSN: 1134-2196

Year of publication: 2021

Volume: 25

Issue: 3

Pages: 205-213

Type: Article

DOI: 10.4995/IA.2021.15690 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Ingeniería del agua

Abstract

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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