Evaluación de la calidad biológica de suelos de páramo bajo tres diferentes tipos de vegetación en el cantón Tisaleo, provincia del Tungurahua.

Abstract

This research aimed to evaluate the biological quality of moorland soils under three different types of vegetation in Tisaleo City, Tungurahua Province. The biological quality of the soil was evaluated by quantifying Colony Forming Units (CFU) in soils influenced by three types of plant cover Herbaceous, Shrub, and Woody. For the development of the study, a Completely Random Design (CRD) was used, where the treatments were the three types of soils based on their plant cover and the five concentrations 10-1, 10-2, 10-3, 10-4, 10-5, with three repetitions. For statistical analysis, ADEVA and Tukey's HSD were used. Three samples were collected and dried in the open air for eight days. The samples were prepared with the method of successive dilutions. Later in the solidified Papa Destroza Agar (PDA) culture medium, the dilutions were plated and taken to the stove for eight days, and finally, the microorganisms were quantified. The biological analysis found that a 5%, in the soil samples under the type of herbaceous vegetation, 7,633,000 colonies forming microorganisms were found in the soil under shrubby vegetation, 5,667,000 colonies and cushion vegetation, 867,000 colonies. The best option to implement moorland soil remediation programs is through repopulation with herbaceous vegetation since the soils influenced by this type of cover presented greater diversity and microbiological quality. Identifying the microorganisms present in the moorland of the locality is recommended.