Vol. 11 No. 2 (2020)
Published
2020-07-07
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Cuello-Salinas, M.-J., & Galvis-Rueda, M. (2020). Diversity and composition of vascular plants in wetlands of the paramo Rabanal, Boyacá- Colombia. Revista De Investigación Agraria Y Ambiental, 11(2), 131-146. https://doi.org/10.22490/21456453.3425
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Diversity and composition of vascular plants in wetlands of the paramo Rabanal, Boyacá- Colombia

DOI: https://doi.org/10.22490/21456453.3425
Section
Área Ambiental
Magda-Juliana Cuello-Salinas Universidad Pedagógica y Tecnológica de Colombia
Manuel Galvis-Rueda Universidad Pedagógica y Tecnológica de Colombia

Contextualization: The Paramo of Rabanal has wetlands that provide the water resource, indispensable for the development of the economy and food security of the region. This ecosystem is being altered by the pressure exerted by the various productive and economic human activities, which means that the wetland loses the capacity to retain and store water, facilitating the expansion of exotic species that increase sedimentation, reducing water retention and storage levels, degrading soil and preventing the growth of native species. The associated vegetation allows the regulation of the hydrological cycle and promotes a measure of adaptation to the changing climate.
Research gap: there is little information on the influence of vegetation associated with water bodies that contribute to their conservation in the wetlands of the Rabanal paramo.
Purpose: identify the vascular flora present in the areas surrounding the artificial wetlands of the Rabanal paramo.
Methodology: the characterization, composition and structure of vascular vegetation was carried out in the areas surrounding the Teatinos, Gachaneca I and II reservoirs in the Rabanal paramo, in the municipalities of Ventaquemada and Samacá, Boyacá, in five field trips was made the survey of 32 plots depending on the physical characteristics of the vegetation following a nested design. The plant material was processed at the Herbarium of the Pedagogical and Technological University of Colombia, Tunja (UPTC); the determination was made with the support of taxonomic keys, databases and experts. In terms of richness, diversity was compared between reservoirs using a Variance Analysis in ranges or Kruskall-Wallis test.
Results and conclusions: The greatest richness of Margalef species was presented in plot P2 (5,40), the greatest dominance of Simpson was for plot P2 (0,95), the greatest diversity of Shannon corresponds to plot P2 (4,39) of the Teatinos Reservoir, the similarity index of Sörensen indicates that the reservoirs Gachaneca I and II, have 52,63% similarity. Evidence of productive and economic anthropic activities leads to loss of native vegetation and fragmentation of the ecosystem.

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