Master of Science (MS)
First Committee Member
Lawrence R. Walker
Number of Pages
I examined soil and vegetation characteristics on a 60 yr chronosequence of abandoned paved roads in Puerto Rico. Rapid recovery obscured successional changes in soil regeneration. Littermass, bulk density, soil moisture, soil organic matter, and total Kjeldahl nitrogen reached forest levels within 11 yr of road abandonment despite residual pavement. Road soil pH showed a clear successional trend, and approached the more acidic forest soils within 60 yr. Pool sizes were similar to the forest by ≥30 yr; Road revegetation displayed strong successional trends across the chronosequence. Vegetation on roads abandoned for ≥30 yr reached a mature forest state for stem count, species richness, canopy height, and canopy cover characteristics. Basal area, understory cover, and diversity measures reached adjacent forest levels within 60 yr. Species composition remained disparate between road and forest. Adjacent forest conditions were the most significant in determining both soil and vegetation recovery trajectories.
Abandoned; Forest; Humid; Paved; Puerto Rico; Rain; Recovery; Roads; Soil; Tropical; Vegetation
Ecology; Environmental sciences
University of Nevada, Las Vegas
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Heyne, Catherine M, "Soil and vegetation recovery on abandoned paved roads in a humid tropical rain forest, Puerto Rico" (2000). UNLV Retrospective Theses & Dissertations. 1146.