A method of cutting study in ponderosa pine forests was installed on FVEF compartment S-7 in 1925. Over the years, there have been treatments affecting density using even- and uneven-aged techniques. There are few long-term studies of multi-aged management in ponderosa pine, certainly very few that date back to the middle of the previous century. This study continues these measurements and analysis.
In 2017, we are remeasuring height to base of the live crown of previously-measured trees. We are also conducting the same measurements of previously-unmeasured trees. All trees in selected one-hectare blocks are stem-mapped and their crown projection area is being measured. Tree data will be correlated with long-term weather data at FVEF. We will continue these measurements into 2018.
Long-term method of cutting study converted to an uneven-aged management study.
Original work included a grazing exclosure.
Complete measurements and stem-mapping in 7-14 one-hectare blocks.
Coring selected dominants to compare to climate variables.