Relationship of fire behavior to tallgrass prairie herbage production

Little evidence has been found to relate fire intensity to herbaceous vegetation response. Our objective was to determine if components of post-fire herbaceous standing crop in a tallgrass prairie could be related to either fire behavior variables or to time-temperature relationships. We used canoni...

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Bibliographic Details
Published in:Journal of range management 1992-11, Vol.45 (6), p.579-584
Main Authors: Bidwell, Terrence G., Engle, David M.
Format: Article
Language:English
Subjects:
analisis estadistico
analyse statistique
causas del incendio
cause d' incendie
communaute vegetale
comunidades vegetales
cultivos de pastos
Fire behavior
Fire breaks
fire causes
Fire intensity
fires
Forbs
gramineas
graminee
Grasses
grasslands
herbage
herbage crops
incendie
incendios
oklahoma
parcours
plant communities
Plant Ecology
plante pour herbage
praderas
praderas de america del norte
prairie
Prairies
Range management
rangelands
rebrote
regrowth
repousse
statistical analysis
Tallgrass prairies
tierras de pastos
Tillage
vegetacion
Vegetation
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Summary:Little evidence has been found to relate fire intensity to herbaceous vegetation response. Our objective was to determine if components of post-fire herbaceous standing crop in a tallgrass prairie could be related to either fire behavior variables or to time-temperature relationships. We used canonical correlation to relate standard fire behavior variables (fireline intensity, rate of spread, and heat per unit area) and time-temperature relationships (degree seconds at 3 vertical strata) to post-fire components of the herbaceous standing crop of tallgrass prairie. Spring headfires and backfires were applied to 10 X 20-m plots on a moderately grazed, shallow prairie range site in good to excellent range condition. The first canonical correlation of the 3 fire behavior variables and the standing crop variables generally indicated a strong relationship between the 2 sets of variates. The canonical correlation between the degree seconds and standing crop sets of variates was slightly less than the canonical correlation between the fire behavior parameters and standing crop. Neither the fire behavior canonical variate nor the degree second canonical variate was strongly related to any single component of the June or August standing crop, but this study demonstrates that fire behavior is a factor affecting community herbaceous vegetation response to fire in tallgrass prairie.
ISSN:0022-409X
2162-2728
DOI:10.2307/4002575