Forest statistics for Ohio, 1979 /

Dennis, Donald F.; Birch, Thomas W.

doi:10.5962/bhl.title.70027

Cited by 13 publications

(16 citation statements)

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“…Previous inventories of Ohio's forest resources were completed for 1952 (Hutchison and Morgan 1956), 1968(Kingsley and Mayer 1970), 1979(Dennis and Birch 1981), 1991(Griffith et al 1993(Widmann et al 2009). …”

Section: Comparing Data From Different Inventoriesmentioning

confidence: 99%

Ohio's Forests 2011

Widmann¹,

Randall²,

Butler³

et al. 2014

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Section: Comparing Data From Different Inventoriesmentioning

confidence: 99%

Ohio's Forests 2011

Widmann¹,

Randall²,

Butler³

et al. 2014

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“…U.S. Forest Service forest inventories of Ohio from 1968 and 1991 (Kingsley and Mayer, 1970;Dennis and Birch, 1981;Griffith et al, 1993) indicate that the proportion of total volume in oak and hickory has declined substantially relative to maple, yellow-poplar (Liriodendron tulipifera), and black cherry (Prunus serotina). The relative importance of several oak and hickory species in Ohio declined by at least 22% during this same period while maple and yellow-poplar increased by at least 38% in total volume.…”

Section: Introductionmentioning

confidence: 99%

Thinning, fire, and oak regeneration across a heterogeneous landscape in the eastern U.S.: 7-year results

Iverson

Hutchinson

Prasad

et al. 2008

Forest Ecology and Management

124

111

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We document an increase in oak and hickory advance regeneration, depending on landscape position, in the sixth year following mechanical thinning and repeated prescribed fires in southern Ohio, USA. Oak-dominated communities provide a multitude of human and natural resource values throughout the eastern United States, but their long-term sustainability is threatened throughout the region by poor regeneration. This study was established to assess regeneration following midstory thinning (late 2000) and prescribed fire application (2001 and 2005) at two sites in southern Ohio. Each of the four 20+ ha treatment units (two thin and burn, two untreated controls) were modeled for long-term moisture regime using the integrated moisture index (IMI), and a 50 m grid of sampling points was established throughout the units. Vegetation and canopy openness were sampled at each gridpoint before and after treatments, in 2000, 2001, 2004, and 2006. The thin and burn treatment generally resulted in more advance regeneration (>50 cm height) of oak and hickory. The second fires in 2005 created additional landscape heterogeneity by causing variable tree mortality, and thus canopy openness, across the IMI gradient. The drier landscape positions generally had more intense fires, more canopy openness, and more oak and hickory advance regeneration; several other tree species also exhibited marked landscape variation in regeneration after treatments. Though advance regeneration of several competing species became abundant after the initial treatments, the second fires reduced the high densities of the two major competitors, Acer rubrum and Liriodendron tulipifera. Two simple models were developed: (1) a model of oak ''competitiveness'' based on the plot data related to advance regeneration of oaks and competitors and (2) a model estimating the probability of a plot becoming 'competitive for oak' based on canopy openness, IMI class, and number of oak and hickory seedlings present. For dry or intermediate sites with at least 5000 oak and hickory seedlings/ha, opening the canopy to 8.5-19% followed by at least two fires should promote oak and hickory to be 'competitive' over about 50% of the area. However, no appreciable oak and hickory regeneration developed on mesic sites. Overall, these results suggest promise for partial harvesting and repeated fires as a management strategy to reverse the accelerating loss of oak dominance in the central hardwoods region. Published by Elsevier B.V.

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“…However, as a result of · o·ur ongoing efforts to improve the efficiency of the inventory, we have made several changes in procedures and definitions since 1979. These procedural changes make it inappropriate to directly compare some of the current estimates with those published by·Dennis·and Birch (1981) and Dennis (1983). Users…”

Section: ·Comparison Between Inventoriesmentioning

confidence: 99%

“…An initial inventory of Ohio's resources was conducted in 1952 (Hutchinson 1954). A second inventory was completed in 1968 (Kingsley 1970), and a third was finished in 1979 (Dennis and Birch 1981;Dennis 1983). This report presents the fourth such inventory of Ohio's forest resources, which was carried out in 1990-91.…”

Section: Introductionmentioning

confidence: 99%