info:eu-repo/semantics/article
Litter production in the Nothofagus forests of Tierra del Fuego, Argentina
Fecha
2016-10Registro en:
Moretto, Alicia Susana; Mansilla, Paula Romina; Martínez Pastur, Guillermo José; Escobar, Julio Martin; Litter production in the Nothofagus forests of Tierra del Fuego, Argentina; IOSR; IOSR Journal of Agriculture and Veterinary Science; 9; 10; 10-2016; 97-100
2319-2372
2319-2380
CONICET Digital
CONICET
Autor
Moretto, Alicia Susana
Mansilla, Paula Romina
Martínez Pastur, Guillermo José
Escobar, Julio Martin
Resumen
Differences in the amount of litter-fall in arboreal species constitute an important factor to understand the nutrient cycle inside a managed forest. The objective was to determine the litter production in Nothofaguspumilio (lenga), N. antarctica (ñire) and N. betuloides (guindo) forests in Tierra del Fuego. Litters was collected during the period of highest fall (February-May), sorting its components into leaves, branches, seeds and miscellaneous (flowers, valves, etc.). Leaves represented the most important component, being significantly higher in lenga (79%) than in guindo (65%) or ñire (54%). Seeds also presented bigger differences, showing a behaviour inversely proportional to that of leaves: ñire (8.7%), guindo (3.0%) and lenga (0.8%). No difference was detected in branches and miscellaneous. The studied forest types showed different strategies of energy distribution, for example, being deciduous or evergreen, or of mass seed production in exceptional years.