Restoration of an oak forest in east-central Missouri: Early effects of prescribed burning on woody vegetation
作者： John G Blake , Bruce Schuette
DOI: 10.1016/S0378-1127(99)00338-2
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摘要: Abstract We investigated early effects of prescribed burning on the structure and species composition woody plants in Cuivre River State Park (2750 ha), Lincoln County, Missouri, USA, where a program forest understory was instituted to return vegetation conditions similar those found at time European settlement. Prescribed initiated 1989 approximately 17% park is now burned every other year. compared 34 0.05 ha plots sections unburned park. Burned areas had experienced two four burns sampled 1996. significantly fewer small trees, live shrubs, less foliage (1.5–10 m) than did areas. Small individuals several (e.g., Ulmus americana ) were abundant and, overall, similarity sample (based basal trees) greater within between There no differences overstory or that could be attributed burning. Direct gradient analyses indicated environmental factors slope, elevation, aspect) accounted for some variation among but also not differ consistently with respect factors. Thus, observed are due pre-existing topography). Results date reflect relatively short-term (
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