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Soil organic carbon and its effect on five soil properties (apparent density; gravimetric moisture; pH; organic matter; and percentage of carbon) was determined by implementing a systematic point sampling method using a 48 point fixed grid (350 m between each point) applied in two soil layers (at depths of 0-15 and 15-30 cm). The 500-hectare study zone hosts a pine plantation and native vegetation of the Paramo of Rabanal in Boyaca, Colombia. The average soil organic carbon found at depths of 0-15 and 0-30 cm was 51.4 t/ha and 108 t/ha, respectively. Statistical differences (p < 0.05) were found between the native coverage and the pine plantation at both depths for the apparent density, gravimetric moisture and pH variables, while the organic matter and percentage of carbon variables showed no significant differences. The results show a reduction in the water capacity of the soils in the study area due to the increase in apparent density in soils located under the pine plantation. With respect to carbon contents, there is a comparative decrease in relation to the high-plateau (Paramo) vegetation coverage, given that the characteristic conditions of forest plantations limit the growth of the different vegetal layers endemic to that ecosystem, and consequently, biological activity.

cuadernos de geografía, revista colombiana de geografía/cuadernos de geografía, revista colombiana de geografía

Cuantificación de la captura de carbono y análisis de las propiedades del suelo en coberturas naturales y una plantación de pino en el páramo de Rabanal, Colombia