Dinámica de calidad atmosférica a través de un gradiente de elevación en la cuenca del Rio Combeima
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The present study evaluated the dynamics of the atmospheric quality and determined in a preliminary way its relation with the index of atmospheric purity and the index of liquid diversity, through a gradient of elevation in the basin of the river Combeima, where seven stations of sampling, randomly selecting 10 trees per stations for a total of 70 points. The lichen species present in each forophyte were collected and the most abundant were Parmotrema cf. bangii (29.2%, 1914 cm2) followed by Pyxine pyxinoides. (7.78%, 918 cm2), Fissurina cf. rufula (6.28%, 741 cm2); In addition, measurements of the O3, NO2, S02 and CO gases were made using an Aeroqual S500. The analysis of variance found significant differences in the concentration of the four gases between stations: NO2 (n = 6, H = 165.95, p = <0.0001), SO2 (n = 6, H = 870.18, p = <0.0001), O3 (n = 6, H = 183.35, p = <0.0001) and CO (n = 6 H = 43.16, p => 0.9999). On the other hand, Spearman correlation tests were performed and it could be demonstrated that the LDV was the index that best correlated with the four gases, mainly with NO2 (-0.89) and highly significant (0.0287). likewise, the Shannon, Dominance and Margalef indices were used, where station four obtained the highest average values of wealth and diversity, while the Dominance index was higher for station one. Finally, a non-parametric variance analysis (Kruskal Wallis) was performed to correlate the behavior of atmospheric gases with atmospheric quality indices.