Cherrybark oak stump sprout survival and development five years following plantation thinning in the lower Mississippi alluvial valley,USA |
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| Authors: | Brian Roy Lockhart Jim L Chambers |
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| Institution: | (1) USDA Forest Service, Southern Research Station, Center for Bottomland Hardwoods Research, 432 Stoneville Road, P.O. Box 227, Stoneville, MS 38776, USA;(2) Louisiana Agricultural Research Center, Louisiana State University, 227 Renewable Natural Resources Building, Baton Rouge, LA 70803, USA |
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| Abstract: | Cherrybark oak (Quercus pagoda Raf.) stump sprouts were studied for 5 years in a 30-year-old plantation thinned to 70–75% stocking (light thinning) and
45–50% stocking (heavy thinning). Sprouting success, survival, number of sprouts per stump, and sprout height differed little
between thinning treatments throughout the 5-year study period. Pre-harvest tree d.b.h. also had no influence on sprout survival
and development. A 2-year drought reduced survival and may have influenced sprout development. Sprout clump survival dropped
from 90% 1 year following thinning to 46% 3 years after thinning. Although sprout height averaged 337 cm 5 years after thinning,
annual sprout growth decreased from 166 cm the first year after thinning to 33 cm in each of the last 2 growing seasons. Results
indicated that bottomland hardwood regeneration evaluation models may underestimate the potential of oak stump sprouts to
contribute to pre-harvest regeneration assessments. Further study in the role of stump sprouts to regenerate bottomland oak
species is needed.
The U.S. Government's right to retain a non-exclusive, royalty-free license in and to any copyright is acknowledged |
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| Keywords: | Quercus pagoda Raf Stump sprouts Sprouting success Height growth |
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