Presentation on theme: "Changes in fire regime, forest structure, and tree spatial patterns in ponderosa pine forests of the northern Colorado Front Range, 1860 to 2012 Peter."— Presentation transcript:
Changes in fire regime, forest structure, and tree spatial patterns in ponderosa pine forests of the northern Colorado Front Range, 1860 to 2012 Peter M. Brown 1,4 Chad Julian 2 Laurie Huckaby 3 Paula Fornwalt 3 Michael Battaglia 3 Antony S. Cheng 4 1 Rocky Mountain Tree-Ring Research, Ft. Collins CO 2 Boulder County Parks and Open Space, Boulder CO 3 Rocky Mountain Research Station, Ft. Collins CO 4 Colorado Forest Restoration Institute, Ft. Collins CO
Front Range Forest Reconstruction Network* 2012 Field Season: 13 Landscape Units 73 0.5 ha plots (3 to 7 plots in each unit) Funded by: Colorado Forest Restoration Institute Arapahoe-Roosevelt National Forest Pike-San Isabel National Forest Rocky Mountain Research Station Boulder County Parks and Open Space Rocky Mountain Tree-Ring Research
FRFRNet Methods: 1. Stem map pre-settlement trees within 0.5 ha plots; -2. Subsample age structure and post-settlement structure in 4 500 m 2 subplots; 3. Collect all fire-scar evidence in plot and surrounding area.
Lyons Boulder County Parks and Open Space Hall Ranch
For more information: Peter Brown, firstname.lastname@example.org
DBH (cm) “Old” “Transitional” “Young” “Pre-settlement” (ca 1880) living trees, defined as ≥ 25 cm dbh OR by morphology “Post-settlement” living trees, defined as < 25 cm dbh OR by morphology Pre-Post-