Research Branch Staff Publications

Effects of Thinning and Fertilizing Mixed Western Hemlock-Sitka Spruce Stands.

Citation:

de Montigny, L. and R.J. de Jong. 1998. Effects of Thinning and Fertilizing Mixed Western Hemlock-Sitka Spruce Stands. Extension Note 28. Res. Br. B.C. Min. For. Res. Rep. 13.

Abstract:

Limited information exists on the growth and yield of young mixed western hemlock (Tsuga heterophylla) and Sitka spruce (Picea sitchensis) stands on the Queen Charlotte Islands following pre-commercial thinning and fertilization. As a result, research into thinning and fertilization was initiated by the South Moresby Forest Replacement Account research committee. Our research project (Experimental Project [EP] 1097), conducted on Graham Island, investigates tree and stand growth responses to thinning and nitrogen and phosphorus fertilization in young Sitka spruce-western hemlock stands. In this extension note, we describe this project, present the 5-year response results taken from remeasurements after the 1996 growing season, and offer some preliminary conclusions.

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