Evaluación de los impactos que ejercen las plantaciones de especies forestales introducidas de pinos (Pinus patula y Pinus radiata) en los ecosistemas de páramo del Parque Nacional Cotacachi Cayapas- provincia de Imbabura.

In the páramo ecosystem there are different forms of life such as flora, fauna and human populations with cultural systems that contribute to enrich global biodiversity, in Ecuador there are 12,500 hectares of páramos registered which are in danger or threatened by various factors that influence In their conservation, one of them is the introduction of forest species in these areas, especially when the characteristics of the exotic forest species to be introduced in reforestation plans are unknown. As is the case of the Cotacachi Cayapas National Park, which has a total area of 44.27 ha of pine plantations (Pinus patula and Pinus radiata) with a plantation age of 25 years, which are located in the Community of Morochos, San Francisco parish of the Cotacachi canton of the province of Imbabura. It has generated a decrease in the flow of water for human consumption and the loss of biodiversity as well as problems of persistent fire risks such as the one caused in 2015, which puts the flora and fauna of the Cotacachi National Park at risk. Cayapas For this reason, the investigation was carried out on the study of the physical and chemical characterization of the soils so that later the MAE together with the Morochos community could propose technical and legal alternatives that allow the establishment of this plantation constituted by pine (Pinus radiata and Pinus patula) and thus be able to comply with the requirements established in the Organic Code of the Environment. The physicochemical study of the soil in the study area was carried out, where it was possible to demonstrate and compare a soil from a páramo ecosystem with a soil reforested with exotic species, observing an acid pH as the depth of the soil increases, in addition to the Macronutrient values such as N, P and K are relatively lower with a value of 0.48%, 6.9 mg / l, 32 mg / l respectively, compared to a páramo ecosystem soil, as well as organic matter and the carbon content. It could be stated that after the analysis of the physical chemical characterization of the soils of the exotic forest plantation of pines, it directly affects the soil structure of the páramo ecosystem.

• 主要作者: Veloz Salazar, Gabriela Alejandra (author)
• 格式: bachelorThesis
• 出版: 2021
• 主題: páramo, pino, suelo
• 在線閱讀: https://repositorio.puce.edu.ec/handle/123456789/42655