IFMAT-IV Report

lands where the lack of active management leads to higher mortality from drought, insects, disease, and wildfire. Tribes tend to respond more quickly to address forest health issues through silviculture treatments and salvage operations than

agencies managing federal lands. Drier, fire-prone tribal lands are not immune to fuel accumulation issues and the impacts of climate change (longer fire seasons and drier fuels), but repeated examples were observed of tribal lands actively managed to be

multi-aged using partial harvests (thinning and gap creation) and prescribed burning to increase resistance and resilience to wildfires – a pattern much more apparent on tribal lands than National Forest lands. In the Lake States and Eastern regions,

Percent Annual Rates of Disturbance - Eastern

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50

Tribal Industrial

Other Federal Small Private State&Local USFS

Harvest

Fire Salvage

Wildfire

Insects

Weather

Percent Annual Rates of Disturbance - Lake States

6.00

5.00

Tribal Industrial

4.00

Other Federal Small Private State&Local USFS

3.00

2.00

1.00

0.00

Harvest

Fire Salvage

Wildfire

Insects

Weather

Percent Annual Rates of Disturbance - Northwest

0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50

Tribal Industrial

Other Federal Small Private State&Local USFS

Harvest

Fire Salvage

Wildfire

Insects

Weather

Percent Annual Rates of Disturbance - Southwest

Tribal Industrial

Other Federal Small Private State&Local USFS

Harvest

Fire Salvage

Wildfire

Insects

Weather

Figure B.4. A comparison of the annual rates (percent of total forest acres) of primary treatment (green harvest and fire salvage) and disturbances (wildfire, insects, and weather) across landowner categories by consolidated BIA regions; Source: USFS - Forest Inventory and Analysis, 2021 FIA reporting database.

Task Findings and Recommendations 85

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