Concentración y distribución de nutrientes en plantaciones de eucalipto del norte de Galicia y noroeste de Asturias
- J. Brañas 1
- F. González-Río 1
- R. Rodríguez 1
- A. Merino 1
- 1 Universidade de Santiago de Compostela. Escola Politécnica Superior de Lugo
- Alberto Rojo Alboreca (coord.)
- Ignacio Javier Díaz-Maroto Hidalgo (coord.)
- Juan Gabriel Alvarez González (coord.)
- Marcos Barrio Anta (coord.)
- Fernando Castedo Dorado (coord.)
- Guillermo Riesco Muñoz (coord.)
- Antonio Rigueiro Rodríguez (coord.)
Publisher: Consellería de Medio Ambiente, Territorio e Vivenda ; Junta de Galicia = Xunta de Galicia
ISBN: 84-931244-2-7, 84-931244-3-5
Year of publication: 2000
Volume: 1
Pages: 441-447
Congress: Congreso de Ordenación y Gestión Sostenible de Montes : (Santiago de Compostela, 4-9 de octubre de 1999) (1. 1999. Santiago de Compostela)
Type: Conference paper
Abstract
This study were carried out in nine 6-18 years old Eucalyptus globulus plantations from NW of Spain. The nutrient level and their accumulation in different fractions of the above-ground tree biomass, soil humus layer and mineral horizons were determined. The results show that the amounts of P, K, Ca and Mg accumulated in tree biomass of mature plantations were higher that the soil available amounts of these elements. In the mature plantations, the logging residues made up the 25% of the biomass weight, although accumulated most of the N, P, K, Ca and Mg contained in the biomass and more than 30% of P, Ca and Mg of forest system. Similarly, the soil organic horizon of the mature plantations constitutes an important reserve of limiting elements for forest production, specially for elements such as P, Ca and Mg.