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Prince George TSA Pine Stem Rust Hazard 2007 Field Work and Preliminary Analyses Progress Report Simonar, Ken
2008
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Abstract: In the year 2006 Richard Reich, Northern Interior Region, Pathologist with Ministry of Forests and Range and Ken Simonar, Consulting Ecologist with Bio-Geo Dynamics Ltd., together initiated proposals for the development of a stem rust hazard rating system including rust hazard mapping and management prescription tool. This evolved into a FIA funded project administered first through Canadian Products limited and now through Pope and Talbot Ltd. ? Fort St James Division. This report provides a summary of work that Bio-Geo Dynamics Ltd has completed on this project to date. The report concentrates primarily on results and recommendations generated from the analysis of the 2007 field sampling. In the spring of 2007 Bio-Geo Dynamics Ltd. developed a three year sampling plan designed to gather the information required to develop a rust hazard mapping and management system. Subsequent funding enabled the first field season to proceed. Bio-Geo Dynamics Ltd. undertook the field work and successfully completed 130 sample plots in the SBSdk, SBSdw2 and SBSdw3 biogeoclimatic variants in the Vanderhoof Forest District. Early in 2008, we were awarded a contract to complete preliminary analysis and recommendations based on the first field season results. Candidate pine plantations were chosen for sampling using a stratified random sampling design. Vegetation inventory base maps were overlaid with the most current predictive ecosystem (PEM) map. The sample population included all pine leading plantations 7-18 years of age. Sample plantations were then chosen in equal proportions from each subhygric to xeric forested ecosystem site series within each climatic subzone variant. Within each plantation, 2 sample plots were randomly located. Detailed rust and ecosystem site data was collected, according to research standards, from within 20X20 metres square plots. Field data was entered into EXCEL and data analyzed using scatter plots, stepwise linear regression, correlation and T tests. Because of sample size constraints, equivalent site series between climatic units were pooled into six ecosystem plant association groups for the purposes of analysis. Numerous site factor were tested for possible relationships with rust infection; these included, ecosystem plant association, biogeoclimatic subzone variant, elevation, soil moisture regime, soil nutrient regime, insolation, slope position, surface shape disturbance, plantation density, shrub/tree cover and herbaceous cover.
 
Simonar, Ken, Migabo, Saphida. 2008. Prince George TSA Pine Stem Rust Hazard 2007 Field Work and Preliminary Analyses Progress Report. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report. FIA2008MR365
 
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA), British, Columbia
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