SciELO - Scientific Electronic Library Online

vol.43 número5Depósito del caldo de aspersión de distintos tipos de boquillas en dos cultivares de soya en el estadio V3 índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  


versión impresa ISSN 1405-3195


AVILES-HERNANDEZ, Virginia et al. Variation in soil carbon stocks in a toposequence. Agrociencia [online]. 2009, vol.43, n.5, pp. 457-464. ISSN 1405-3195.

Information on the variation of carbon (C) stocks relative to soil topography is scarce. To determine the soil C variation, C stocks in the subsoil of a toposequence (hilltop, hillside, valley and plains) in a Fagus grandifolia subsp. mexicana forest were estimated. Three 400 m2 observation plots were set up in each topographic position, and two sites within each plot were selected to measure the C stored in the subsoil (soil and roots) at depth intervals of 0 to 15, 15 to 30 and 30 to 45 cm. Variation in soil C stores was found in an increasing gradient from hilltop to plains, as well as decreasing values with increasing depth. The largest total C stock was found on the plains (208 t C h-1) and the lowest on the hilltop (159 t C ha-1). The differences in C stocks found in different topographic conditions could be due to the differential speed of decomposition of organic matter of the dominant species in each condition, indicating that C stores change in function of the topography together with availability of resources in the system.

Palabras llave : Fagus grandifolia; mesophyll forest; carbon sequestration; forest productivity; environmental services.

        · resumen en Español     · texto en Español     · pdf en Español