Program: Timber Growth and Value; Theme: Basic Research on Tree Growth and Stand Development; Topic: Old Stands The Coastal Stand Management Growth and Yield Field Experiments Program encompasses 23 active Experimental Projects (1854 plots) that have been regularly measured and maintained since as long ago as 1928. Treatments include espacement, spacing, thinning, fertilizing and pruning. Ten installations (207 plots) from a number of experiments are scheduled to be remeasured in the 2005/06 fiscal year including: ? EP 703.4, 14, 16, 52, 53 (48 plots) ? Extensive Studies of Fertilizing and Thinning ? EP 534 (46 pots) ? Spacing Trials of Douglas-fir ? EP 1065.2, 3, 4 (77 plots) ? Effects of Pruning Severity on Coastal Species (Western Hemlock, Western Redcedar and Sitka spruce) ? EP 1097 (36 plots) ? Effects of Thinning and Fertilizing Mixed Western Hemlock-Sitka Spruce Stands The data from these and other long-term Coastal Stand Management Growth and Yield Field Experiments are used to build models and decision-making tools needed for essential tasks such as determining the effects of management practices on forest dynamics, growth and timber yields, continued development of SIBEC and other tools including GY modeling, and ultimately for the AAC determination processes. The data is also important is assessing new and emerging forest practices questions. Of particular relevance to FIA FSP, is this year?s proposed analysis of volume loss and mortality occurring over a 30 to 80 year time period. In this analysis, the mortality rates in some or all of the older coastal field experiment installations will be examined. We will also look at the cause of mortality and rate of deterioration of trees once they have died, including the decay and fall-down rates. Some of these Coastal Field Experiment installations have long-term data dating back almost 80 years, with the majority dating back over 30 years. Many of these installations have had density management treatments. This information is important to understand mortality rates in natural and managed stands and can be used further, for example, to predict wildlife tree recruitment in variable retention residual patches. The results of this analysis will be published as a peer-reviewed journal article and in the following year, an extension note. The study will also produce an extension note based on the completion of the 2004/05 analysis and reporting of the project ?Effects of pruning severity on the growth of juvenile western redcedar up to eight years after pruning?. This project examines how pruning may improve the growth and wood quality of second-growth cedar while producing non-timber forest products such as essential oils and decorative cedar boughs.
de Montigny,, E., Louise. 2007. Coastal Stand Management Growth and Yield Field Experiments. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA), British, Columbia
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