A scenario-based assessment to inform sustainable ponderosa pine timber harvest on the Black Hills National Forest

Abstract

Since 2000, the Black Hills National Forest has experienced several disturbances that have reduced standing live sawtimber volume which will affect future harvest levels. To evaluate options concerning the future timber management program, we conducted a quantitative analysis to determine how mortality from these disturbances and potential growth rates will impact short-, mid-, and long-term sustainable sawtimber harvest levels of ponderosa pine (Pinus ponderosa var. scopulorum Dougl. ex Laws.). In 2019, there was 5,995,428 CCF (hundreds of cubic feet) standing live ponderosa pine sawtimber within the suitable timberlands. The current harvest level in the Black Hills National Forest Plan of 181,000 CCF/yr is not a sustainable option. Over the next several decades, if mortality rates stay below 1.04%, harvest levels of 72,400 and 90,500 CCF/yr appear to be sustainable if all suitable timberlands are available for harvest. History shows that allowing the forest to recover after large disturbances provides opportunities to adjust future harvest levels. Also, tending of young forests can promote recovery and produce sawtimber volume more quickly. As a result of a Request for Reconsideration under the Data Quality Act, an Addendum was added to the GTR in December 2022. The Addendum contains additional clarifying information around terminology and methods. For more information and additional links to supporting information please see this science spotlight.

Citation

Graham, Russell T.; Battaglia, Mike A.; Jain, Theresa B. 2021. A scenario-based assessment to inform sustainable ponderosa pine timber harvest on the Black Hills National Forest. Gen. Tech. Rep. RMRS-GTR-422 [Addendum added December 2022]. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 61 p. https://doi.org/10.2737/RMRS-GTR-422.