Abstract
Examples of nutritional stress in conifer seedlings caused by competing ericaceous species (e.g. Calluna and Kalmia), have been reported in several parts of the world. Nutritional stress (primarily N deficiency) has been reported in Sitka spruce (Picea sitchensis) plantations growing in association with an ericaceous species, salal (Gaultheria shallon), in coastal British Columbia. Nutritional interference by salal was investigated on a chronosequence of sites up to 10 yr after clearcutting and slashburning. No direct evidence for an allelopathic contribution to the N stress was obtained. However, the rapid accumulation of salal fine roots and rhizomes, and the nutrients contained therein, provides a partial explanation for the observed stress symptoms. Soil analyses and seedling bioassays demonstrated a reduction in fertility in the period 8 to 10 yr after clearcutting and slashburning in comparison to the period 2 to 4 yr, which is believed to impose further nutritional stress on Sitka spruce. It is concluded that the nutritional stress in these Sitka spruce plantations is caused by a combination of (1) salal competition for nutrients and their subsequent immobilization in salal biomass, and (2) declining site fertility caused by the termination of the flush of nutrients (the “assert period”) that occurs in the immediate post-clearcutting and slashburning period. Sustaining good growth of plantations under such circumstances will require site nutrient management as well as vegetation management.
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Cole, D.W. and Rapp, M.: 1981, Elemental cycling in forest ecosystems (P: 341–409), in Reickle, D.E. (ed), Dynamic properties of forest ecosystems. Cambridge University Press. Cambridge.
Covington, W.W.: 1981, Ecology 62, 41.
Germain, A.: 1985, Fertilization of stagnated Sitka spruce plantations on northern Vancouver Island. M.Sc. Thesis. Univ. of British Columbia, Vancouver, B.C., Canada.
Green, R.N., Courtin, P.J., Klinka, K., Slaco, R.J. and Ray, C.A.: 1984, Site diagnosis, three species selection, and slashburning guidelines for the Vancouver Forest Region. Land Management Handbk. #8. Ministry of Forests, Victoria, B.C., Canada.
Handley, W.R.C.: 1963, Mycorrhizal association and Calluna heathland afforestation. For. Comm. Bull. 36, H.M.S.O., London.
Klinka, K.: 1976, Ecosystem units — their classification, mapping and interpretation in the University of British Columbia Research Forest. PhD thesis, Fac. For., Univ. British Columbia, Vancouver, B.C.
Krause, H.H. and Ramlal, D.: 1986, Can. J. Soil Sci. 67, 943.
Lewis, T.: 1982, Ecosystems of the Port McNeill block 4 of Tree Farm Licence 25. Internal Report, Western Forest Products Ltd., Vancouver, B.C.
Mallik, A.U.: 1987, For. Ecol. Manage 20, 43.
McDonald, M.A.: 1989, Competition for nutrients and chemical interference by salal Gaultheria shallon Pursh. Vegetation management: An integrated approach, Proc. of the fourth annual Vegetation Management Workshop. FRDA report 109, Ministry of Forests, Victoria, B.C.
Messier, C. (in preparation). Below-ground factors affecting conifer seedling growth in salal-dominated sites in Coastal British Columbia. PhD thesis. Fac. For. Univ. of British Columbia, B.C., Canada.
Miller, H.G. and Miller, J.D. : 1987, Nutritional requirements of Sitka spruce (P: 75–83), in Hendersen, D.M. and Faulkner, R. (eds), Sitka spruce. Proc. of the Royal Society of Edinburgh. Section B (Biological Sciences).
Robinson, R.K.: 1972, J. Ecol. 60, 219.
Rose, S.L., Perry, D.A., Pilz, D. and Schoeneberger, M.M.: 1983, J. Chem. Ecol. 9, 1153.
Sabhasri, S.: 1961, An ecological study of salal, Gaultheria shallon, Pursh. PhD thesis, University of Washington, Washington, USA.
Weetman, G.F., Fournier, R., Barker, J., Schnorbus-Panozzo, E. and Germain, A.: 1990a, Can. J. For. Res. 12, 1501.
Weetman, G.F., Fournier, R., Schnorbus-Panozzo, E. and Barker, J.: 1990b, Post-burn nitrogen and phosphorus availability in Coastal British Columbia cedar/hemlock forests and the use of fertilization and salal eradication to restore productivity, in Gessel, S.P. (ed), Sustained productivity of forest lands. Proceedings of 7th North American Forest Soils Conference, Friesen Press, Vancouver, B.C.
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Messier, C., Kimmins, J.P. Nutritional stress in ficea sitchensis plantations in coastal British columbia: The effects of gaultheria shallon and declining site fertility. Water Air Soil Pollut 54, 257–267 (1990). https://doi.org/10.1007/BF00298670
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DOI: https://doi.org/10.1007/BF00298670