Biomass and Nutrient Accumulation in a Planted E. globulus (Labill.) Fertilizer Trial
- 1 January 1982
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Botany
- Vol. 30 (3), 265-278
- https://doi.org/10.1071/bt9820265
Abstract
The above ground biomass of Eucalyptus globulus was estimated four times during 9.5 years in a plantation treated with four levels of fertilizer. A linear relationship between biomass components and tree basal area was appropriate up to 4 years of age but the allometric relationship was more suitable in subsequent years. A biomass of 3 kg m-2 took 9 . 5 years to accumulate in unfertilized plots compared with 4 years in heavily fertilized plots. Net primary production reached 1 , 5 kg m-2 year-1 in the heavily fertilized plots between 6 and 9.5 years of age. Nitrogen accumulation in heavily fertilized plots reached a peak of 2.6 g m-2 year-1 before 2 years of age compared with a plateau of 0.8 g m-2 year-1 in unfertilized plots. Maximum accumulation of phosphorus in heavily fertilized and unfertilized trees was 0.25 and 0.10 g m-2 year-1 respectively. The effect of fertilizer on nutrient accumulation disappeared during the period from 6 to 9.5 years.Keywords
This publication has 2 references indexed in Scilit:
- Nutrient stocks in a subtropical eucalypt forest, North Stradbroke IslandAustral Ecology, 1977
- Briefer Articles and NotesJournal of Forestry, 1938