applied in the Morice TSR R de Jong CSC Winter Workshop 27 February 2014 Assessment of Midrotation Stands Stand Development Monitoring SDM To assess Timber Objective of FRPA FREP ID: 721465
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Slide1
Young Stand Monitoring
applied in the
Morice
TSR
R. de Jong
CSC Winter Workshop
27 February 2014Slide2
Assessment of Mid-rotation StandsStand Development Monitoring (SDM)
To assess Timber Objective of FRPA
(FREP)
To change Legislation if required
To change PRACTICE if requiredStand Level assessment – 10 plots per polygon, summarized per TSA
Young Stand Monitoring (YSM)
To assess TRENDS of young stands relative to TSR assumptions and adjust (FAIB)Management Unit assessment – permanent sample plots established on a grid over the target population
∆ Leg and Practice
∆ TSRSlide3
Morice YSM ProgramEstablished 201250 * 0.04ha
plots
Grid Based
Unbiased estimate of 15
– 50 year old target populationSlide4
ObjectivesDescribe Young Stand CharacteristicsAssess Accuracy of Inventory PolygonsAssess Accuracy of Site Index EstimatesCheck on TSR AssumptionsLocalize MSYTs using YSM dataSlide5
Describe Stand CharacteristicsCompositionSlide6
Describe Stand CharacteristicsStructureStand Table - LiveStock Table - LiveSlide7
Describe Stand CharacteristicsForest HealthLiveDeadSlide8
Assess Accuracy of Inventory PolysObserved vs. VRI Species CompositionSlide9
Assess Accuracy of SI EstimatesObserved vs. Provincial Site Prod Tile Slide10
Check on TSR AssumptionsTIPSY MSYTs @ each Sample Point
# Ground Samples
MSYT Volume
Ground Volume
Difference
(m3/ha)
502748
21Slide11
Localize MSYTs with YSM DataCharacteristicImpactApplied in
Site index
Base
Assumption
Species mix
Base Assumption
Forest health
Alternate ScenarioSlide12
Localize MSYTs with YSM DataSite Index AdjustmentTSR-based SI underestimated compared to ground-based site index.Action: apply site index adjustment by speciesSlide13
Localize MSYTs with YSM DataSpecies CompositionYSM ground species mix vs. TSR assumptionsAction: Apply YSM species mix by AU
Scenario
Species
Percent
by THLB
HWD
BL
PL
SX
Total
YSM species mix
1
13
60
25
100
TSR Existing
Assumptions
1
27
46
26
100
TSR Future
Assumptions
0
1
40
59
100Slide14
Localize MSYTs with YSM DataForest Health ImpactWorst-case FH scenario assumes all stem rust affected Pine will die at rotation.Action: Apply incremental OAF1 in Pine dominated regimes
Data Source
% of Total SPH (host species)
% of Total SPH (all species)
% of Total BA (all species)
RESULTS
10
SDM
21
16
YSM
25
15
16Slide15
Pine Med AU – Site IndexSlide16
Pine Med AU – Species mixSlide17
Pine Med AU – Forest HealthSlide18
Pine Med AU – Combined ImpactSlide19
Morice TSR ScenariosScenario
Era
Managed
Stand
Yield
Table
Base Case RunExisting Managed Stands
YSM (SIA + species)
Future Managed
Stands
2013
Data
Package regimes
Alternate Scenario Run
Existing Managed
Stands
YSM
(
SIA + species
+ FH)
Future Managed
Stands
YSM
(
SIA + species
+
FH
+ GG)Slide20
SummaryYSM to describe young stand populationYSM as a check on TSR assumptions, both current and future standsYSM to generate localized MSYTsYSM to support alternative modeling scenarios with measured data (forest health)Future YSM data to include change (growth / mortality)