Land uses in cities and their impacts on the water quality of urban freshwater blue spaces in the Pampean region (Argentina).

Autor: Fontanarrosa MS; Instituto Multidisciplinario sobre Ecosistemas y Desarrollo Sustentable, Universidad Nacional del Centro de La Provincia de Buenos Aires - CICPBA, Tandil, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina., Gómez L; Instituto del Conurbano, Área de Ecología, Universidad Nacional de General Sarmiento, Los Polvorines, Argentina., Avigliano L; Instituto del Conurbano, Área de Ecología, Universidad Nacional de General Sarmiento, Los Polvorines, Argentina., Lavarello A; Instituto del Conurbano, Área de Ecología, Universidad Nacional de General Sarmiento, Los Polvorines, Argentina., Zunino G; Instituto del Conurbano, Área de Ecología, Universidad Nacional de General Sarmiento, Los Polvorines, Argentina., Sinistro R; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.; Instituto de Ecología, Genética y Evolución, Universidad de Buenos Aires - CONICET, Ciudad Autónoma de Buenos Aires, Argentina., Vera MS; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.; Instituto de Ecología, Genética y Evolución, Universidad de Buenos Aires - CONICET, Ciudad Autónoma de Buenos Aires, Argentina., Allende L; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. lallende@campus.ungs.edu.ar.; Instituto del Conurbano, Área de Ecología, Universidad Nacional de General Sarmiento, Los Polvorines, Argentina. lallende@campus.ungs.edu.ar.
Jazyk: angličtina
Zdroj: Environmental monitoring and assessment [Environ Monit Assess] 2023 May 09; Vol. 195 (6), pp. 648. Date of Electronic Publication: 2023 May 09.
DOI: 10.1007/s10661-023-11216-7
Abstrakt: Freshwater blue spaces (FBS), such as ponds, are key elements of the urban landscape and are under strong anthropogenic pressure. Land-use types and diversity may exert a negative or positive impact on FBS' water quality depending on their nature and arrangement. The information available in this respect is remarkably scarcer for water bodies in the Global South than for the north. Thus, we aim to identify and quantify the land-use types in a 500-m buffer zone of urban ponds in the Pampean region (Argentina) to assess their impact on water quality. We based our study on 15 FBS located in neighborhoods of Buenos Aires province during cold and warm seasons. We analyzed physical, chemical, and biological variables, and estimated water conditions by means of water quality indexes (WQIs) and quality guidelines. We quantified the dominant land-use type and the diversity of uses in the ponds' buffer zones, and evaluated their relationships with WQIs. Our results showed that WQIs were negatively related to a high proportion of residential areas in the adjacent zone, while positively to recreational ones. The diversity of land uses did not influence the water quality. We propose a new WQI pond with fewer key response variables, and as sensitive as the currently used WQI objetive . We conclude that water quality from urban ponds in the Pampean region can be affected by dominant land-use type in the adjacent area but also the quality of their water supply sources (superficial and/or underground), clandestine wastewater discharges, and non-point pollution.
(© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
Databáze: MEDLINE
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