Estudio comparativo de indicadores físicos y químicos de la calidad del suelo y de la biodiversidad de la mesofauna edáfica en dos usos de suelo de la microcuenca del río Pomacocho, parroquia Achupallas, cantón Alausí, provincia de Chimborazo.

In order to determine the effect of changing the use of moorland by pine plantations (Pinus radiata) on the physical and chemical indicators of soil quality and biodiversity of edaphic mesofauna. A comparative study was conducted in the Pomacocho river watershed in Achupallas, Alausí canton, Chimborazo province. The surface area was considered for the samples, which were randomly selected. In the case of the edaphic mesofauna, 6 transects 5 monoliths each of 25 x 25 x 30 cm according to the methodology TSBF and samples were transported to the laboratory for the respective examination. The macrofauna was separated and manually counted and identified to the family level. The soil type was determined, texture, structure, color, stoniness, bulk density, moisture percentation, pH, electrical conductivity, N, P, K, Ca,% C and MO, and a correlation was performed among variables. In general, the effect that pine plantations have had on the moorland has been mainly in the moisture altering, bulk density, organic matter, carbon content, pH, electrical conductivity, N, P, K and Ca. Regarding to the taxonomic composition of the edaphic mesofauna evaluated in both land use, was higher in the soil planting. This could be because the pine plantation generates a microclimate regulating the temperature and species become established in patches of exotic vegetation depending on how close are these areas of native vegetation, or the age of the planting of Pinus radiata of this study ranges from 7 to 10 years and it is in a state of growth and under these plantations still was scrubland. Changes in land use, in which anthropic activities expressed under the forest land use (pine plantations), are causing changes in the physical and chemical properties, as to the biological properties based on the relationship, Acari/Collembola, pine plantations alter the dynamics and trophic structure of soil communities, effects that persist long term. However, this study can not be generalized

• Hovedforfatter: Flores Torres, María Elena (author)
• Format: bachelorThesis
• Sprog: spa
• Udgivet: 2016
• Fag: Transecto; Monolito; Indicadores físicos y químicos; Mesofauna Edáfica
• Online adgang: http://dspace.unach.edu.ec/handle/51000/3077