Resumo

SALAZAR-SUAZA, Daniela  e  QUIJANO-ABRIL, Mario Alberto. Multi-temporal analysis and characterization of hydrophyte and helophyte vegetation of a belt of urban wetlands in the highlands of the Eastern region of Antioquia. Rev. acad. colomb. cienc. exact. fis. nat. [online]. 2020, vol.44, n.171, pp.639-651.  Epub 15-Jun-2021. ISSN 0370-3908.  https://doi.org/10.18257/raccefyn.1060.

Wetlands have been classified as highly diverse ecosystems given their multiplicity of environments and forms and they constitute unique ecosystems whose conservation is of worldwide interest. In the present study, we sought to characterize the aquatic vegetation in 13 urban wetlands in the highlands of the Eastern region of Antioquia using 15 random quadrants of 0.5 m distributed in each wetland to evaluate the frequency and coverage. Besides, we studied the distribution of aquatic vegetation by growth habits illustrated in a vegetation profile. Finally, we conducted a multi-temporal analysis to evaluate the pressures these ecosystems have had over time. We found 81 species of aquatic plants distributed in 39 genera and 27 families where 41 species are native to the Department of Antioquia. The families with the highest representation were Poaceae, Cyperaceae, Onagraceae, and Juncaceae. The growth habit that dominated was the emerging one followed by the rooted floating and the free-floating. The anthropic pressures observed in the spatial analysis showed that urbanization, mining, and pollution have seriously damaged these ecosystems and that they are currently at high risk of disappearance if they are not included in the plans for territorial management.

Palavras-chave : Anthropic pressures; Aquatic vegetation; Growth habits; Urban wetlands.

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