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EFFECTS OF VARYING FIRE REGIMES ON ANNUAL GRASSLANDS IN THE SOUTHERN SIERRA NEVADA OF CALIFORNIA
David J. Parsons and Thomas J. Stohlgren
Vol. 36, No. 3 (JULY-SEPTEMBER 1989), pp. 154-168
Published by: California Botanical Society
Stable URL: http://www.jstor.org/stable/41424754
Page Count: 15
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Effects of up to three successive spring and fall burns on composition and biomass of the predominantly non-native grasslands of the southern Sierra Nevada foothills were evaluated. Fall and spring burning regimes increased the number and biomass of both alien and native forb species. No native grass species became established following the treatments. Thus, whereas the biomass of alien grass species can be reduced by repeated burning, they will be replaced by increases in both alien and native forbs. Changes seen following one or two burns (spring or fall) were not sustained following cessation of burning treatment.
Madroño © 1989 California Botanical Society