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 18 of 18 for “"Vegetation monitoring"”.
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Advancing Vegetation Monitoring Strategies in Arid Ecosystems Using Unmanned Aircraft Systems
… present unique challenges for environmental monitoring using remotely sensed data because vegetation communities in drylands are often sparsely distributed and have heterogeneous species and soil composition. Unmanned Aircraft Systems (UAS) offer centimeter-scale spatial resolution and …
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Development of an innovative and efficient urban vegetation monitoring system for sustainable urban ecology
… rapidly urbanizing environment of New Zealand, monitoring and preserving urban green spaces are crucial for ecological balance and sustainability. Urban vegetation significantly contributes to the ecological and social fabric of city life, making its distribution, health, and diversity essential …
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Monitoring Squirrels from the Sky: Applications of Uncrewed Aerial Systems-Based Bioacoustic and Vegetation Monitoring Regimes for Mohave Ground Squirrel
… (henceforward UAS or drones) bioacoustic monitoring. The Mohave ground squirrel (MGS) is a threatened species under the California Endangered Species Act, and occupies a northwest corner of the Mojave Desert, one of the smallest ranges of any ground squirrel (Hoyt, 1972). Several …
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In-Flight control simulation of a proposed, future microsatellite for the African Resource Management Constellation (ARMC)
… (ARMC) is a group of satellites that provide vegetation monitoring over the African continent. It is operated by the following four countries: Kenya, South Africa, Nigeria and Algeria. The constellation allows the four partner countries to learn to control and build their own satellite …
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The effects of rehabilitation management on the vegetation of Fenn’s, Whixall and Bettisfield Mosses National Nature Reserve – a cut-over lowland raised mire
The relationship between vegetation change and rehabilitation management is investigated at a severely degraded cut-over lowland raised mire on the Wales/England border, managed by Natural England and The Countryside Council for Wales. Positive responses are confirmed 11 years after rehabilitation …
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Automatic UAV image registration using feature detection and matching with satellite imagery
… disaster relief, urban planning, crop and vegetation monitoring, and mapping. The common difficulty in utilizing aerial imagery captured by aircraft rather than satellite is that of image registration: transforming data into the image coordinate system. Often, the goal of these applications …
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Monitoring changes in plant community composition and landscape structure as a result of prescribed burning at Big Oaks National Wildlife Refuge
A vegetation monitoring program was initiated at Big Oaks National Wildlife Refuge (Big Oaks NWR) to help understand the effects of fire management on critical wildlife habitat. The objectives of this study were to produce a baseline description of plant community structure and composition and to …
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Toward Trustworthy Power Line Perception from Aerial Imagery: Segmentation and Reliability Monitoring
… downstream tasks such as clearance analysis, vegetation monitoring, damage assessment, and navigation. However, power lines are difficult to segment in aerial imagery because they are narrow, low-contrast, and often obscured by cluttered backgrounds and changing environmental conditions.</p> …
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A wetland vulnerability assessment : consequences for the avian communities of saltmarshes
… objectives: to classify saltmarsh and reed bed vegetation distribution; to assess the vulnerability of these habitats to sea level rise; to determine the impacts of sea level rise on nesting avifauna; and to derive recommendations for conservation practice.Vegetation classification methods using …
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Landscape Influences on Spatial Patterns of White-tailed Deer Herbivory and Condition Indices in the Central Appalachian Mountains
… assessment should include spatially-balanced vegetation monitoring that accounts for regional differences in deer forage preference. Agriculture and other non-forest habitats may provide resources that result in larger deer body mass either directly through food items or indirectly through …
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Initial Wetland Hydrology and Vegetation Composition in Predicted Wetlands Adjacent to Lake Naconiche, Nacogdoches County, Texas
… in northern Nacogdoches County, included a monitoring project to demonstrate at least 176 acres of land adjacent to the lake would be converted into wetlands. The purpose of the study was to evaluate the creation of wetlands around the lake and establish a benchmark of vegetation composition …
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Comparison of spatial and spectral properties of Landsat-8 and Sentinel-2 data for mapping plant chlorophyll-a
… (Chl-a) is a vital parameter to assess vegetation quality in plants as an indicator of photosynthetic capacity to ensure proper flow of ecosystem services. Nowadays, with a rapid increase in human population and deforestation chl-a in higher plants remain at risk from degradation. Aim …
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Revegetation of two drained reservoirs on the Elwha River ten years after dam removal
… While several studies have examined the revegetation of these drained reservoirs, none have gone beyond 5 years since dam removal. These studies found that sediment grain size and reservoir landform (valley walls, terraces of reservoir sediment, and active riparian zones) were important …
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Evaluating blanket mire vegetation recovery following hydrological restoration, with specific focus on the influence of Molinia caerulea
… processes involved in passive blanket peatland vegetation restoration following hydrological rewetting and evaluates the role of Molinia caerulea tussock development as a barrier to blanket mire vegetation establishment. Using data collected from restoration pools and terrestrial peat surfaces …
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Investigating ecological drivers and impacts of vegetation change in sub Antarctic tundra
… the impact of environmental change on vegetation dynamics requires considering the individualistic responses of plant species, which are influenced by their specific habitat requirements and biotic interactions. For instance, habitat generalist species often have broad environmental …
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The Effects of Fire on the Vernal Herbs of an Eastern Mesic Forest
<p><sup></sup>The effects of fire on vernal herbs of the mesic forests of eastern North America are poorly understood. I studied the influence of prescribed fire on species richness, abundance of rare and common species, and density of exotics in the vernal herbaceous layer. To determine these …
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Developing a cloud based Internet of Things (IoT) greenhouse monitoring system
Submitted in fulfilment of the requirements for the Masters Degree of Information and Communications Technology, Durban University of Technology, Durban, South Africa, 2021.