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 20 of 121 for “"forest structure"”.
-
Environmental determinism and forest structure and composition: a naturally replicated experiment
Ecological theory states that forest succession is largely environmentally determined. Many investigators have suggested, however, that stochastic processes can frequently alter successional pathways. In particular, the colonization phase is thought to be very stochastic. This study utilizes a …
-
Estimating pre-fire forest structure with stereo imagery and post-fire lidar
Lidar has become an established tool for mapping forest structure attributes including those used as inputs for fire behavior and effects modelling. However, lidar is rarely available to document pre-fire conditions due to its sparse availability. In contrast, aerial imagery is regularly collected …
-
Temporal changes in forest structure, composition, and carbon storage at Trelease Woods
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
-
Fire, climate, and forest structure in ponderosa pine forests of the Black Hills
… for historical conditions in ponderosa pine forests is that frequent surface fires maintained open, low-density forest stands composted primarily of old, large trees. However, this model may not apply uniformly to ponderosa pine forests in the Black Hills of southwestern South Dakota and …
-
APPLICATIONS OF GEDI LIDAR FOR REMOTE SENSING OF FOREST STRUCTURE AND BIODIVERSITY INDICATORS
… and applications of spaceborne lidar for forest integrity and biodiversity monitoring. The three analyses detailed here contribute to our ability to assess forest health as indicated by forest structure and structural diversity and improve our ability to monitor biodiversity using forest …
-
Effects of Mid-Rotation Release on Forest Structure, Wildlife Habitat, and Pine Yield
The effects of two forms of mid-rotation release on thinned, fertilized loblolly pine (Pinus taeda L.) plantations in Virginia were examined: aerial imazapyr and basal triclopyr application. Imazapyr measurement plots were installed in nine Piedmont and twelve Coastal Plain plantations …
-
Tropical forest structure: Ground measurements of coarse necromass and satellite observations of crown geometry
<p>Forests are structurally diverse, but these structures derive from the same processes of disturbance and growth. Understanding forest structure can help unlock the history, function, and future of a forested ecosystem. Components of forest structure include tree size distributions, foliage …
-
Changes in forest structure and composition associated with unique land use histories: Implications for restoration
Many contemporary semi-arid forests of western North America are denser and have a greater proportion of shade tolerant species relative to pre- Euro-American settlement. While many causes have been invoked to explain these changes, the active suppression of fire since the early 1900s has been the …
-
Changes in forest structure and composition associated with unique land use histories: Implications for restoration
Many contemporary semi-arid forests of western North America are denser and have a greater proportion of shade tolerant species relative to pre- Euro-American settlement. While many causes have been invoked to explain these changes, the active suppression of fire since the early 1900s has been the …
-
FUSING GEDI LIDAR AND TANDEM-X INSAR OBSERVATIONS FOR IMPROVED FOREST STRUCTURE AND BIOMASS MAPPING
… fusion-based methodologies to contiguously map forest biomass at satisfactory resolutions and accuracies. This dissertation is built on the complementary advantages of observations from GEDI and DLR’s TerraSAR-X/TanDEM-X (TDX)) Interferometric Synthetic Aperture Radar (InSAR) mission. To meet …
-
Forest Structure, above-Ground Carbon Stocks, and Productivity along an Elevational Gradient in the Ecuadorian Andes
<p>The Andean forest provides a natural laboratory for evaluating long-term interactions between forests and variation in environmental parameters along elevational gradients. In particular, the mechanisms that control above-ground carbon stocks (AGC) and natural dynamics in mountain ecosystems …
-
Age, forest structure, and disturbance history of five potential old-growth forests in eastern Kentucky's Cumberland Plateau
… global importance, yet its extent of old- growth forest (OG) is not well known. Due to its rarity and importance, understanding what OG remains is needed to deduce the region's health. This study described five potential OG forests in eastern Kentucky. Sites possessing >5 trees/ha established …
-
Susceptibility Of Headwater Catchment Hydrology To Persistent Droughts And Forest Structure Modification - A Plot To Catchment Scale Analysis
… conducted at a plot scale in Lassen National Forest and at a regional scale across the Sierra Nevada's. The first chapter addresses how forest management strategies such as thinning alter the soil moisture and sap flow dynamics during a severe drought. The reduced forest density across the …
-
The Influence of Forest Structure on Sumatran Orangutan Nesting and Densities in the Lowland Dipterocarp Forests of North Sumatra
… tree and why build the nest in that part of the forest and not another? Nest and forest structure data were recorded from transects conducted at two sites in North Sumatra; Sikundur (a naturally recovered site) and Sei Betung (reforested site). Selection patterns for tree and forest structure …
Page 1 of 7