A study was initiated in July 1986 in the Kalum Forest District of the Prince Rupert Forest Region to detennine the effects of various alternative silvicultural treatments for the conversion of red alder (A/nus rubra Bong.) stands to coniferous plantations. The objectives of this study were described by Pollack et al. (1986) as follows: 1. To evaluate the silvicultural, ecological, and economic practicality of ten stand conversion treatments; 2. To identify those treatments that favour the establishment and growth of commercial coniferous tree species; and 3. To detennine the impact of these treatments on the establishment, survival, and growth of commercial tree species; on important competing vegetation species and communities; and on important soil properties related to short and long tenn conifer productivity. The specific objectives of the silviculture component of the project are: 1. To measure the degree of control achieved by each treatment on the important competing vegetation species. 2. To measure the survival and growth of three coniferous tree species planted in each of the stand conversion treatments. This report describes conifer survival and growth and vegetation development two complete growing seasons after the 10 conversion treatments were conducted during the summer of 1987.
D. Coates, P. LePage, J. Pollack. 1990. Conversion of Multistoried Brush Fields to Coniferous Plantations A Benchmark Evaluation of Alternative Silvicultural Treatments: Treatment Effects On Competing Vegetation And Conifer Growth. FLNRORD
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