Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"advanced regeneration"”.
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Even-aged regeneration alternatives for low quality oak hardwood forests in the Virginia Piedmont
… and growing season harvests, and four even-aged regeneration treatments on natural hardwood and planted loblolly pine (Pinus taeda L.) are examined three years after clear felling and whole-tree harvesting upland hardwood stands in the Virginia Piedmont. Natural hardwood regeneration was …
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AN ANALYSIS OF LOBLOLLY PINE AND SHORTLEAF PINE HYBRIDIZATION USING CHROMATOGRAPHY AND GEOGRAPHIC INFORMATION SYSTEMS: A CASE STUDY IN EAST TEXAS
… State Park (<em>n</em> =24; 14 overstory;10 advanced regeneration individuals). Through HPLC, 14 chromatogram peaks were identified and measured for intensity. T-Tests for overstory and advanced regeneration at each site indicated no significant differences for peak intensity between forest …
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Analysis of red spruce (Picea rubens) regeneration in Pocahontas, Randolph, and Tucker counties, West Virginia
… increasing the density of red spruce seedlings, advanced regeneration and trees across the spruce-hardwood ecotone as well as under the surrounding hardwood canopy. Red spruce seedling densities were found to be greater with increased cover of bryophytes and coarse woody debris, while densities …
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Substrate dependant survivorship of Ecklonia maxima, in southern African kelp communities
… E. maxima is a shade-tolerant species showing advanced regeneration. Establishment on rock may occur through episodic recruitment escaping grazing pressure. In areas with low grazing intensity, recovery from catastrophic storms may be limited by competition with understorey algae.
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The effects of intermediate-scale wind disturbance on forest composition, structure, and succession with implications for management
… acted primarily as a release mechanism for advanced regeneration and stems in the midstory. Our results can be used to refine silvicultural prescriptions that attempt to minimize the disparity between managed and unmanaged stands and to promote intra-stand heterogeneity.
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Negative Effects Of ComMycorrhizal Networks And Roots On Upland Oak Seedlings In Open-Canopy Woodlands And Closed-Canopy Forests
… that benefit from fire suppression. Successful advanced regeneration by oaks in forests and woodlands depends both on the persistence of seedlings in the shade and growth within canopy gaps. Through the sharing of carbon and/or water between adults and seedlings, connection to a commycorrhizal …
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Timber supply and economic impact of mountain pine beetle salvage strategies
… of non-pine species and minimize destruction of advanced regeneration during salvage. However, this has an opportunity cost for the private industry where the objective is to maximize profit. If the salvage strategy focuses on decreasing the impact on cash flows, achieving desirable ending …
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Establishment, Mortality and Growth of Recruits in an Experimentally Disturbed Piñon-Juniper Woodland
… findings underscore the importance of advance-regeneration through saplings that passed their most vulnerable life stages. Contrary to expectations, sapling growth benefitted from overstory tree death of either species, including in dry years. However, the two species exhibited distinct …
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Long-Term Disturbance Histories Of Managed And Natural Mixed-Hardwood Forests Of Central Indiana
… disturbance regimes, which provided a pool of advanced regeneration prior to harvest, and fortuitous timing of the harvest events to release the understory.</p> <p>This study highlighted both the importance of disturbances on species composition and stand structure, and the fate of …