The Evolution of Forest Inventory on the Warm Springs Indian Reservation Allan D. Derickson Forest Planning & Inventory Supervisor Confederated Tribes of Warm Springs

East Slope Cascades 1,000 ft to 10,000 ft Reservation established in 1855 for Wasco and Warm Springs Indians Paiutes added in 1879 Kah-Nee-Ta

Warm Springs Forest Management  644,000 total acres  423,000 forested acres  315,000 unreserved forested acres  256,000 net commercial forest acres  Over 3 billion board feet of inventory  25 commercial tree species  27 different plant associations

Warm Springs Forest Management  Integrated Resource Management Plan Traditional Cultural Uses Water and Fish Wildlife Timber Grazing Other Economic Development Recreation

Harvest Scheduling Constraints  Must plan by watershed (12)  Retention trees at 5-15 tpa  Minimum stand age requirements: 70 years  Selected stands constrained temporarily for wildlife cover  Harvest priority respected. No low or stable OG

Harvest Priority Unhealthy High Value 1 Average High Value 4 Vigorous High Value 7 Unhealthy Mod Value 2 Average Mod Value 5 Vigorous Mod Value 8 Unhealthy Low Value 3 Average Low Value 6 Vigorous Low Value 9

Conditional Use Areas  Have one or more of the following: Extremely low productivity Very difficult logging or access Possess other high resource values Spiritually significant to Tribal Members  Harvest timber only at Tribal Council direction  Not scheduled or included in allowable cut

plot clusters

plot clusters

plot clusters

1974 McQuinn Strip

plots

1988: CFI Design Changed  Single plot on a 50x50 chain grid replaced 3-plot cluster on 100x100 chain grid  Subplot 1 remeasured  Subplot 2 remeasured for the last time  Subplot 3 dropped  1/100 acre regeneration plot added in the Pine type  Conditional Use plots not remeasured

1997: CFI Plots GPS’ed  Conditional Use plots remeasured  Taper heights measured  1/100 acre regeneration plot on all plots  CFI not used for AAC  CFI was used to calibrate both FPS and FVS growth models  CFI used to compute growth & mortality

The Stand Exam Program  1993: A need for more detailed stand-based data to implement IRMP  Stand health and structure important  USFS R6 Stand Exam protocol adopted  Atterbury SuperStand  2 types of exams: “Formal” & “Walk-through”

The SE Program Evolves  Switch to MB&G SIS compiler and inventory database  “Walk-Throughs” eliminated  Data used for AAC calculation  Count plots used to improve statistics

Evolution Continues  1999: Eastern Oregon FPS library available  FPS offered a more integrated compiler-growth model-harvest scheduler  2001: AAC calculated with FPS  Stocking survey data used to supplement SE  2002: Prescribed fire monitoring begun

The Wilcox Stocking Plots  1985: Need to find appropriate level of stocking for uneven-age management in PP type  4 areas selected to install 3 sets of 2.5 acre plots  3 different levels of retention  All tree >1.5 inches dbh measured and stem- mapped  Remeasured at 5 year intervals

Upper Tenino Plot 3

The Future  Continue to improve accuracy and efficiency  Gather data on 12,000 acres a year  Use data from other programs to bolster SE  Have an inventory program second to none