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- Title
EFFECTS OF PRESCRIBED BURNING ON THE WOODY UNDERSTORY AT EMMA VANCE WOODS, CRAWFORD COUNTY, ILLINOIS.
- Authors
Edgin, Bob; Beadles, Roger
- Abstract
The overstory composition and effects of prescribed burning on the woody understory were studied at Emma Vance Woods, Crawford County, Illinois, during the 1997 to 2003 growing seasons. The study area is a dry-mesic upland forest located in a presettlement forest-prairie interface zone. Overstory and woody understory sampling were conducted in September 1999. Prescribed burning was conducted in March 2001 and December 2002. Post-burn understory sampling was conducted in September 2003. Increment cores were removed from randomly selected Quercus alba L. (white oak) and Carya spp. (hickory) trees in December 2003. Increment cores indicated the canopy trees were approximately 150 years old, a date that corresponds to a period of increased settlement in that portion of Crawford County, Tree density- averaged 307.5 trees/ha with the dominant species being white oak (IV = 64.4 of 200), followed by Q. velutina Lam. (black oak), Carya tomentosa (Poir.) Nutt (mockernut hickory), C. glabra (Mill.) Sweet (pignut hickory) and Sassafras albidum (Nutt.) Nees (sassafras). Following burning, large sapling (> 2.5 cm dbh and < 10.0 cm dbh) density was reduced from an average of 688 stems/ha to 478 stems/ha (-30.5%) and small sapling (> 50 cm tall and < 2.5 cm dbh) density was reduced from 4,720 stems/ha to 820 stems/ha (-82.6%). Woody seedling (< 50 cm tall) density increased from 38,720 stems/ha to 108,000 stems/ha.
- Subjects
ILLINOIS; OAK; HICKORIES; DENSITY; VEGETATION management; CRAWFORD County (Tex. : Imaginary place); WHITE oak; LAURACEAE; QUERCUS velutina; LAMELLARIIDAE
- Publication
Erigenia: Journal of the Southern Illinois Native Plant Society, 2004, Issue 20, p59
- ISSN
8755-2000
- Publication type
Article