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.
Results
Showing 1 to 10 of 10 for “"Pinus rigida"”.
-
Disturbance-based restoration for recovery of pitch pine (Pinus rigida) in the Thousand Islands Ecosystem: a comparison of prescribed fire and mechanical disturbance on seedling regeneration
… loss of disturbance adapted forest communities. Pinus rigida (pitch pine) is strongly associated with wildfire in the core of its range, however the association becomes less certain towards the species’ range margins. I tested the efficiency of a prescribed fire and mechanical disturbance …
-
Stand Dynamics in a Southern Appalachian Montane Pine Barren, Warm Springs Mountain, Virginia
… fire adapted species, such as dwarfed Pinus rigida (Mill.) and Quercus ilicifolia (Wangenh.), this shrubland is home to numerous rare plants and invertebrates. We used vegetation analysis and dendrochronology to document establishment and recruitment patterns and to identify …
-
Establishment of native plant species for livestock forage in silvopasture systems
… existing silvopasture systems -- pitch pine (Pinus rigida Mill.) x loblolly pine (Pinus taeda L.) hybrid and eastern American black walnut (Juglans nigra L.) -- with open pasture as a control, and determine how differences in environmental factors (Photosynthetically Active Radiation (PAR), …
-
Fire History of an Acidic Barrens Complex: A Methods Assessment of Fire Return Intervals
… cross section from 58 fire-scarred pitch pine (Pinus rigida) for the purpose of assessing multiple "filtering" techniques and for the development of a fire interval simulation model. The simulation model randomly selected trees from each grid cell to estimate fire return intervals at multiple …
-
Forest dynamics of pine- and oak-dominated communities on southeastern-facing slopes of Warm Springs Mountain, Virginia
… dynamics on WSM noted an absence of pitch pine (Pinus rigida Mill.) regeneration and an increase in fire-intolerant species during recent decades in the pine barren community that is probably linked to fire suppression. Dendrochronological studies of disturbance history in the central and …
-
Leveraging the Landsat Archive to Track Understory Evergreen Shrub Expansions in the Coweeta Basin, North Carolina
… of a xerophytic canopy tree species, pitch pine (Pinus rigida), and an associate understory shrub, K. latifolia. Our analysis of the influence of terrain variables on evergreen shrub expansion allowed us to determine which of the two species was expanding in various locations with reasonable …
-
Nitrogen availability and pine seedling growth in organically- amended mine soils
… of three-year-old pitch X loblolly pines (<i>Pinus rigida</i> X <i>taeda</i>) were four times larger in soils amended with sawdust + slow-release N and were twice as large in soils amended with 22 and 56 Mg/ha sludge compared to fertilized-only seedlings. Increased seedling mortality was …
-
Organic amendment effects on carbon and nitrogen mineralization in an Appalachian minesoil
… 10 pitch pine x loblolly pine hybrid seedlings (Pinus rigida L. x P. taeda L.). The control treatment was designed based on principles hypothesized as necessary for the success of reclamation forestry; i.e., the selection of a suitable spoil material (slightly acid, low salt concentration), …
-
Dynamics and Characterization of Soil Organic Matter on Mine Soils 16 Years after Amendment with Topsoil, Sawdust, and Sewage Sludge
… vegetation type: pitch x loblolly pine hybrid (Pinus rigida x taeda) trees and Kentucky-31 tall fescue (Festuca arundinacea Schreb.). Soil analyses of composite samples for 1982, 1987, and 1998 were evaluated for changing levels of mine soil quality. The positive effect of these organic …
-
Horticultural utilization of waste products from sustainable forestry practices in the Pinelands National Reserve
… of pine species that include: pitch pine, Pinus rigida, virginia pine, Pinus virginiana, and shortleaf pine, Pinus echinata. Currently, the slash material is not being utilized and accumulates as a waste product. A more desirable solution would be to process the flailed pine slash into …