Tahoe National Forest, Truckee Ranger District PSW Sagehen Experimental Forest

Tahoe National Forest, Truckee Ranger District PSW Sagehen Experimental Forest

UC Berkeley Sagehen Field Station

SAGEHEN PROJECT

SYLLABUSRetention Patch PicturesRx Burn NumbersTreatment Numbers American Marten Update



SAGEHEN PROJECT



SAGEHEN PROJECT



SAGEHEN PROJECT

THE NUMBERSBurn Rx vs Actual Weather

Wind Speed Upper Rx Lower Rx Actual 8 MPH 0 MPH 0-3 MPHTemperature Upper Rx Lower Rx Actual 85 F Any 61-65 F

10 hr Fuel Moisture Upper Rx Lower Rx Actual 4 12 11



SAGEHEN PROJECT

THE NUMBERSBurn Intensities

Top 1/3 – Strip LightFlame Length Flame Zone Depth Rate of Spread 4 ft 2 ft .45 ft/minMiddle 1/3 – Dot LightFlame Length Flame Zone Depth Rate of Spread 1 ft 6 in .33 ft/minBottom 1/3 – Strip LightFlame Length Flame Zone Depth Rate of Spread 5 ft 3 ft 2 ft/min



SAGEHEN PROJECT

THE NUMBERSVolume Removed

Average per Acre* Saw Material Biomass Material Total Material

9.59 6.67 16.26

CCF ~6 ~4 ~10

MBF**

* calculation includes all retention patches** assumed 1.63 CCF = 1 MBF

*** assumed 1 MBF (Doyle log rule) = 8 tons

Tons*** ~48 ~32 ~80



SAGEHEN PROJECT

THE NUMBERS# of Trees Pre Treatment/Removed

Unit 10 Pre Treatment 10” – 19.9” 20” – 29.9” 30” + Totals 139 42 10 191

JP/PP/SP

WF/RF 147 17 3 167

Totals 286 59 13 358 Unit 10 Removed

10” – 19.9” 20” – 29.9” 30” + Totals 12 0 0 12

JP/PP/SP

WF/RF 93 4 0 97

Totals 105 4 0 109



SAGEHEN PROJECT

THE NUMBERS# of Trees Pre Treatment/Removed

Unit 11 Pre Treatment10” – 19.9” 20” – 29.9” 30” + Totals 87 7 4 98

JP/PP/SP/LP/WWP

WF/RF 196 64 31 291

Totals 283 71 35 389 Unit 11 Removed

10” – 19.9” 20” – 29.9” 30” + Totals 11 0 0 11 WF/

RF 91 9 0 100

Totals 102 9 0 111

JP/PP/SP/LP/WWP



SAGEHEN PROJECT



SAGEHEN PROJECT

MARTEN UPDATE

Working with researchers to define location and spatial arrangement of suitable habitat for marten in

Sagehen BasinVerifying baseline vegetation typingExamine habitat change over timeDeveloping preliminary ideas on management activities to maintain and/or enhance marten habitat



SAGEHEN PROJECT

MARTEN UPDATE

Management strategies can include:Specific strategies for habitat patchesLooking at linkage corridors – riparian or otherIdentifying barriers to movement between core patches of habitat and potential solutionsRetention of key habitat features for denning and resting sites – snags, logs, diseased/damaged treesMaintain and/or increase landscape heterogeneity while maintaining core patches and linkages

Tahoe National Forest, Truckee Ranger District PSW Sagehen Experimental Forest

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