Aporte de la hojarasca al ciclo biogeoquímico en plantaciones de Eucalyptus nitens, X Región, Chile

Schlatter, Juan E.; Gerding, Víctor; Calderón, Sigrid

Abstract

"The litterfall in Eucalyptus nitens plantations, established on an andisol (close to Fresia, X Region, Chile), were measured after canopy closure (4-7 years old), in an area under different fertilization treatments. At canopy closure annual litterfall was the highest (7-11 t ha-1), and becoming lower after it (5-6 t ha-1); the main quantity was measured in summer (45-60%). With the annual biomass the following amounts of nutrients return to the soil (kg ha-1 year-1): 20-50 N, 1-4 P, 5-40 K and 31-151 Ca, respectively, depending on age and fertilizer treatment. The O horizon (litter layer) accumulated 6-10 t ha-1 dry matter at age 7 and the thinning and pruning, carried out at age 5-6, contributed with similar amounts of branches and bark. The litter layer accumulated 100-190 N, <15 P, 20-40 K and 140-230 Ca kg ha-1, respectively. This biomass and nutrients constitute an important reservoir for the ecosystem and the sustainability of future rotations."

Más información

Título según SCIELO: Aporte de la hojarasca al ciclo biogeoquímico en plantaciones de Eucalyptus nitens, X Región, Chile
Título de la Revista: BOSQUE
Volumen: 27
Número: 2
Editorial: Universidad Austral de Chile
Fecha de publicación: 2006
Página de inicio: 115
Página final: 125
Idioma: es
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002006000200006&lng=en&nrm=iso&tlng=en
DOI:

10.4067/S0717-92002006000200006

Notas: SCIELO