Impact of Grassland Burning on Soil Degradation in the High-Andean Areas of the Huánuco Region

Abstract

The aim of the study was to evaluate the impact of grassland burning on soil degradation, analyzing changes in their physical, chemical, and biological properties. It was carried out in the town of Calanca, district of Jesús, province of Lauricocha, Huánuco region, in the year 2024. Soil sampling was carried out in plots with grassland burning and in plots without burning, to evaluate the physical and chemical properties; biological of the soil. Sampling was carried out after 5 days of burning the grassland at a depth of 20 cm. The results showed changes in soil texture, bulk density, and porosity. The values of pH and CEC, the content of organic matter, phosphorus, potassium, changeable cations, and the population of macrofauna decreased due to the of macrofauna decreased due to the effect of the burning of the grasslands. The values of physical, chemical and biological properties are at low levels. These changes indicate soil degradation that can affect agricultural and livestock productivity in the region. Grassland burning has a negative impact on soil quality. It is recommended to implement sustainable management practices to mitigate these negative changes.