Timber supply Forest Inventory Tree spp, Amount, Age, height, location, size of polygon Convert to timber volume by spp Spp volume by age Growth of each spp by site, age, density Mortality, cull by site, age, spp Spp change with time Harvest and regeneration cost Regen success Access and limits to protect other values
Management Alternatives - What are they? Management Alternative “The combination of a set of objectives and associated strategies for their achievement …” (FMPM) Current Forest Action Future Forest Needs How & What
Management Alternatives (MAs) Management Alternative - 1 Management Alternative - 2 Etc....
Management Alternative Principles ALL objectives and targets be it Timber or Non-timber are kept constant throughout ALL Management AlternativesALL objectives and targets be it Timber or Non-timber are kept constant throughout ALL Management Alternatives F Old Growth, Wildlife & Wood supply ‘targets’ are kept constant throughout ALL Alternatives
Benchmark Scenario F Natural/Benchmark Scenario F Natural/Benchmark Scenario (natural disturbances) F Used to forecast how forest would develop void of human activity (e.g. silviculture or fire suppression) F Assumption that left alone forest is sustainable F All other Management Alternatives are compared to this Benchmark Scenario F Desire to have managed forest develop in a within acceptable range to ‘Natural’ forest dynamics
Management Alternative - 1 MA 1 - MandatoryMA 1 - Mandatory - Timber Production Potential - Unlimited Silvicultural Funding F Objective is to determine the maximum volume that could be produced by the forest if unlimited $$ were available F Intent is to scope ‘opportunities’ if extra funds were made available
Management Alternative - 2 F MA 2 - Mandatory F MA 2 - Mandatory - Timber Production Potential - Limited Regeneration Funding F Limits funding to stumpage revenues acquired through harvesting F Intent is to scope what is possible with funding that is anticipated
Management Alternative - 3 F MA 3 - Mandatory F MA 3 - Mandatory - Meet Industrial Demand - Unlimited Silvicultural Funds F ‘Hard Targets’ on species and ‘flow’ are set for forest to meet anticipated industrial demand F Intent is to scope the affects of regulated volume flow F Similar to MA - 1 with few nuances
Management Alternative - 4 MA 4MA 4 - Recreation and Wildlife Focus F Attempts to create an ‘ideal’ forest for recreation by maximizing the production of forests dominated by mature Conifer and Mixedwood Forests F Approach intended to model ‘Non-timber’ focus - discussion
Management Alternative - 5 F MA 5 F MA 5 - Preliminary Preferred Management Alternative - Timber Production Level with Limited Silvicultural Funds F Proposes an approach to meet both Timber and Non-timber objectives
Strategic Forest Management Model (SFMM) Used to develop Management Alternatives and produce results that can be tested for sustainability
What Strategic Timber Computer Model Do Forest Condition Cost ($$) vs. Benefit (result) Habitat ( for selected wildlife species) Wood Supply
How SFMM Models SFMM is a non-spatial ‘Optimization’ model Based on Inputs, constraints & objectives SFMM will find the best possible solution This ‘solution’ then requires interpretation “Models never make decisions - people do.”
Inputs & Constraints (rules) Forest Resource Inventory How a Forest Develops Over Time Treatment Options How ‘We’ want the Forest to Develop
Diversity * Wildlife * Age-Class structure * Old Growth * Wood Supply * Silviculture * Socio-Economics *... Results Have we met our objectives? Tests of Sustainability?Does the Management Alternative meet the Tests of Sustainability?
Habitat supply Forest Inventory Tree spp, Amount, Age, height, location, size of polygon Convert to habitat supply for each wildlife spp Spp volume by age Growth of each spp by site, age, density Mortality, cull by site, age, spp Spp change with time Harvest and regeneration cost Regen success Size, amount, age of trees =habitat