Soil respiration and its relationship with litter contributions in a wooded mountain soil
Keywords:andosol soils, humic acids, mountain forest, respiration rate, soil respiration
Soil respiration in forest ecosystems is considered to be the second most important carbon flux between the biosphere and the atmosphere. In tropical forests, the factor that most influences soil respiration is the temporal variation in temperature, and in water content or precipitation; the soil temperature is relatively constant. The behavior of the RS was established, and this ecological process was estimated and modeled for a tropical mountain forest in the State of Hidalgo, Mexico. It has contributed to strengthening the theoretical framework for the restoration and ecological conservation of this forest, considered a National Park, this has been the main objective of this work. Its relationship with the climatic parameters and factors that regulate CO2-soil-atmosphere fluxes in an annual cycle was analyzed. The daytime respiratory rate was slightly higher (average of 3.54 tmCO2/ha) than the nocturnal one (average of 3.35 tmCO2/ha), depending on the ambient temperature and the climatic conditions. The humic acid found in the soils was classified for the mountainous wooded area of the Chico National Park. Andosols are humic soils and humic acids were classified predominantly as type A. According to the results obtained, with only one year of evaluation, it should be noted that it is necessary to carry out a greater number of evaluations, at least during a period of 5 to 10 years and for different seasonal periods, in order to strengthen the responses found for this ecosystem.