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Table 1 Summary information of the ten fires surveyed for ponderosa pine regeneration across Arizona and New Mexico, USA, that burned severely in ponderosa pine forests. Field data were collected in 2018 and 2019. Within each fire perimeter, table includes total area burned in forests and woodlands, percent of area burned severely, the number of plots and transects established in high-severity burn patches, and ponderosa pine regeneration density (mean and median). High-severity fire was mapped using a RdNBR threshold of ≥643 (Singleton et al. 2019)

From: Moisture and vegetation cover limit ponderosa pine regeneration in high-severity burn patches in the southwestern US

Year Fire name National forest Area (ha) High severity fire (%) Number of plots (transects) Mean (median) (stems ha−1)
1996 Bridgerknoll Kaibab 11 863 27.6 12 (6) 87 (0)
1996 Horseshoe Coconino 3 273 26.5 2 (1) 361 (361)
2000 Pumpkin Coconino 6 431 26.9 2 (1) 734 (734)
2002 Ponil Complex Carson 35 071 23.5 4 (2) 11 (9)
2002 Rodeo-Chediski Apache-Sitgreaves 180 759 33.2 10 (5) 555 (145)
2005 Mudersbach Kaibab 3 203 13.4 2 (1) 14 (14)
2005 Pine Canyon Carson 1 651 45.4 6 (3) 46 (37)
2006 Warm Kaibab 23 536 38.7 10 (5) 355 (95)
2008 Big Springs Cibola 2 020 56.9 2 (1) 5 (5)
2008 Trigo Cibola 5 590 32.5 4 (2) 24 (11)