Under-storey Nutrient Content in an Age Sequence of Douglas-fir StandsAnnals of Botany (1977)
The nutrient concentrations and contents of the under-storey species were estimated for a series of Pacific North-west Douglas-fir [Pseudotsuga menxiessii (Mirb.) Franco] stands ranging in age from 9 to 95 years. Analyses were carried out for ash, N, P, K, Ca, Mg, Mn, Fe, Zn and Na and significant differences in nutrient concentrations were found to exist between species; species rejecting certain nutrients and accumulating others. General trends for mean concentrations of some nutrients are associated with stand maturity in that ash, K and Mg decline, P and Mn increase and N and Ca reaches a peak at 20–30 years and then declines. The nutrient contents (kg ha−1) of the under-storey component of the stands are presented and trends discussed.
- mineral nutrient content,
- under-story vegetation,
- Pseudotsuga menziessii stands,
Citation InformationJames N. Long, J. Turner and A. Backiel. "Under-storey Nutrient Content in an Age Sequence of Douglas-fir Stands" Annals of Botany Vol. 42 Iss. 5 (1977) p. 1045 - 1055
Available at: http://works.bepress.com/jameslong/183/