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Bison herd grazing on a watershed burned every 4 years at Konza Prairie. Bison are allowed to graze across a 961-ha are that includes watersheds with different fire frequencies (annual, 2-, 4- and 20-year fire return intervals) to study the interactive effects of fire and grazing on ecological processes. 6/2007
The Konza Prairie LTER site features watershed-level fire and grazing treatments that are part of the KNZ core LTER program. Watersheds with native ungulate (bison) grazing (‘N’) are green, and cattle-grazed watersheds (‘C’) are red. Cattle-grazed treatments include both annual spring burning/season-long stocking and a 3-yr rotational burning patch-grazing treatment initiated in 2010. All other watersheds are ungrazed. Numbers designate fire return intervals for spring-burned watersheds. Watersheds subject to different seasons of fire (W=winter, F= fall, Sp= spring, SU=summer) are brown, and Fire Treatment Reversal (‘R’) watersheds are yellow. King’s Creek watershed (USGS Benchmark Stream) is blue. Many plot-level experiments are located at the headquarters areas (HQ) in the northwest portion of the site.