Cumulative Impact Management: Cumulative Impact Indicators and Thresholds

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Cumulative Impact Management: Cumulative Impact Indicators and Thresholds. Presented by: Salmo Consulting Inc. and AXYS Environmental Consulting Ltd. in association with Diversified Environmental Services GAIA Consultants Inc. Forem Technologies Ltd. May 29-30, 2003. Introduction. - PowerPoint PPT Presentation

Text of Cumulative Impact Management: Cumulative Impact Indicators and Thresholds

  • Cumulative Impact Management:

    Cumulative Impact Indicators and Thresholds

    Presented by:Salmo Consulting Inc. andAXYS Environmental Consulting Ltd. in association with Diversified Environmental Services GAIA Consultants Inc. Forem Technologies Ltd.

    May 29-30, 2003

  • IntroductionIndicators and thresholds: Speed limits for Cumulative Impact Management (CIM)Case Studies: Applying local information and knowledge in development of made-for-Northeast BC thresholdsMoving Forward: Using thresholds in Northeast British Columbia as part of a broader Sustainable Resource Development Strategy

  • Cumulative Impact Indicators: What are they?Used to describe or monitor environmental or land use conditionsProvide common language for planning, assessment, management, monitoring, and researchShould be simple and easy to useShould be numerical and easily calculatedComplementary suite of land use and habitat indicators most practical for CIM

  • Cumulative Impact Indicators:Recommended Suite for Northeast BCLand use IndicatorsAccess densityStream crossing indexHabitat IndicatorsCore areaPatch and corridor size

  • Cumulative Impact Thresholds:What are they?Objective, science-based standards Linked to cumulative impact indicatorsClearly define desired outcome and acceptable changeRecognize social, economic, and political factorsCan be used to evaluate acceptability of both project-specific and regional cumulative impactsAlready used in BC: Air and water quality thresholdsEfficient and results-basedTied to enhanced review and management decisions

  • Cumulative Impact Thresholds:What are they?

  • Cumulative Impact Thresholds:Tiered ThresholdsReflect increasing degrees of concernProvide a clear and integrated framework for assessment and managementIncorporate ecological, social, and economic valuesOperating rules clear for all partiesProvide flexibilityDifferent land management regimesFull spectrum of development proposals

  • Cumulative Impact Thresholds:Tiered ThresholdsCautionary Thresholds Early warningEnhanced protection measures and monitoringEnsures local data availableTarget ThresholdsAcceptable value or rangeRestrictive protection measures and monitoringCritical ThresholdsMaximum acceptable valueImpact management designed to keep indicator below this value

  • Understanding the Landscape: Case StudiesDetailed evaluations in Blueberry and Sukunka Case Study areasDocument land use, fish and wildlife trendsTest CIM indicators and thresholdsEvaluate utility of readily-available dataSimulate future resource trends

  • Understanding the Landscape: Case Study FindingsReadily-available resource data limits analysesAccess density and core area indicators both statistically related to moose and elk population indicesPredictive power equivalent to more detailed and costly habitat indicatorsPublished access density relationships may not apply directly to Northeast BC ALCES simulations provide valuable historical and future insights

  • Impact Management:Candidate ThresholdsMade-for-Northeast BC values developed as starting pointTiered thresholds linked to LRMP management zonesMeasure of acceptable changeResults-based managementFocused on project review, but generally applicable

  • Northeast BC LRMP ZonesProtected AreasSpecial Management ZonesGeneral Resource Management ZonesEnhanced Resource Development ZonesEnvironment Priority Development Not AllowedEnvironment and Wilderness Priority Limited Development Special Protection MeasuresMultiple Use Priority Extensive Development Enhanced Protection MeasuresDevelopment Priority Extensive Development Standard Protection MeasuresManagement IntentResource Management Zone

  • Candidate Thresholds:Acceptable ChangeProtected Areas/Special Management ZonesManaged to protect wildlife or wilderness valuesPrimary source habitat for all speciesRelatively undisturbed areas for wilderness and backcountry recreationVery Low RiskThresholds established below lowest detected effect level for the most sensitive species

  • Candidate Thresholds:Acceptable ChangeGeneral Resource Management ZonesManaged for wide variety of resource usesSecondary source habitat for most speciesMixture of undisturbed and modified areasLow RiskThresholds established below lowest detected effect level for most speciesMore protective thresholds in defined Landscape UnitsCandidate woodland caribou thresholdsIdentified wildlife grizzly bear and bull trout thresholds

  • Candidate Thresholds:Acceptable ChangeEnhanced Resource Development ZonesManaged for intensive resource developmentNeutral or sink habitat for most speciesPrimarily human-modified areasModerate RiskThresholds established to sustain most speciesMore protective thresholds in defined Landscape UnitsCandidate woodland caribou thresholdsIdentified wildlife grizzly bear and bull trout thresholds

  • Candidate Access Threshold Example

  • Impact Management:Using ThresholdsDevelop definitions of acceptable changeUse candidate thresholds as a foundation Evaluate ecological, social, and economic implicationsDevelop standardized methodsProvide required land use data Implement a pilot study to validate thresholds and optimize analysis, reporting, and review methods Continue monitoring to refine thresholds and impact management

  • Thresholds and CIM:Sustainable Resource ManagementGeneralized landscape and watershed thresholds (e.g. access density) and local/species-specific thresholds can be applied to all activities in region Local: OGC Project ScreenerSub-regional: Identified Wildlife guidelinesRMZs: Regional planning and managementProvincial: State of the Environment reportingOngoing monitoring of indicator status and species response

  • Sustainable Resource Management

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