Papers with variable: Any
Displaying 81 - 90 of 109
The authors tested a series of minimal-impact treatments including: (1) thinning of small trees (diameter ? 12.7 cm) and prescribed fire; (2) thinning of small trees located close to large old trees and prescribed fire; (3) prescribed fire only; and (4) control, to determine their effectiveness at reducing hazardous fuels and restoring historic forest conditions.
The authors characterized the historic community stand dynamics of Quercus gambelii to understand the structure and patterns of regeneration and recruitment over time.
The authors compared current forest vegetation structure and composition across an elevational gradient to a dendrochronological reconstruction of vegetation from 1876 to understand the effects of forest management, specifically fire exclusion.
The authors reconstructed the contemporary and historical fire regime of a ponderosa pine forest and a mixed-conifer forest to determine how fire exclusion may have affected the forests’ structure and composition on the San Francisco Peaks in Northern Arizona.
The authors looked at the regeneration of ponderosa pine forests after ten high-severity crown fires that occurred from 1948 to 1977.
The authors used tree-ring chronologies to compare timing of historic ponderosa pine recruitment to tree-ring based climate reconstruction variables, including annual precipitation, PDSI, Southern Oscillation Index, and Niño3 sea surface temperature (SST) index, and also fire disturbance to understand how both climate and fire have influenced current forest stand structure.
The authors studied the effects of past disturbances, specifically beetle outbreak and extreme drought, on the spatial variability of fire severity.
The authors examined the effects of prescribed fires on subsequent fire behavior and fire severity one to nine years prior to the Rodeo-Chediski fire.
The authors utilized an escaped high-severity prescribed fire in Grand Canyon National Park to assess the effects of post-fire structure and composition on a ponderosa/mixed-conifer forest stand and determine if more intense prescribed fire has restoration benefits.
The authors quantified the change in forest stand structure on plots established from 1909 to 1913 and resampled in 1997-1999.