US Forest Service - Wildland Fire Effects in Silviculturally Treated vs. Untreated Stands of New Mexico and Arizona
Research Paper RMRS-RP-55
Low-frequency, high-intensity crownfires have replaced high-frequency, low-intensity fire regimes in
southwestern pine (Pinus spp.)-grasslands. High-intensity crownfires can severely disrupt these forest ecosystems.
The link address is: http://www.fs.fed.us/rm/pubs/rmrs_rp055.pdf