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 20 of 27 for “"ground vegetation"”.
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Ground vegetation gross primary production dynamics of a drained peatland forest ecosystem
… In drained peatland forest, beside tree stands, ground vegetation is another relevant component concerning C fluxes between the land and the atmosphere. Thus, to explore ground vegetation gross primary production (GPPGV) dynamics, its affecting factors, and impacts of the partial harvest; forest …
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Effect of land degradation on the above-ground vegetation and soil seed bank of a Rangeland in Kunene region Namibia
… such as Namibia. Degradation is affecting above ground vegetation and seed bank composition, hindering their recovery. To address this issue, it is crucial to assess land conditions at different levels and develop effective strategies for restoring degraded rangeland. The understanding of how …
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Estimating above and below ground vegetation biomass and carbon storage across an intra-urban land-use gradient in mid-Missouri
… six intra-urban 50m2 plots were surveyed for vegetation characteristics such as species richness, basal area, proportion invasive species, and species morphometrics. Morphometric data were used to quantify vegetative biomass and carbon storage. Trees within the bottomland hardwood forest were …
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Áhrif nýskógræktar á kolefnisbindingu í jarðvegi á Íslandi
… aspects of the ecosystem, including the fauna, ground vegetation and soil properties. One of the most important ecosystem changes is the influence on the ecosystem carbon (C) stocks in different aboveground and belowground C pools. If afforestation is to be used as a method to sequester …
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Assessing Wetland Restoration on the Delmarva Peninsula using Vegetation Characteristics
… of Maryland and Delaware were surveyed for above-ground vegetation and seed bank community composition, annual biomass production, and vegetation carbon content (10 restorations from prior-converted cropland (aged 5-31 years), and 5 natural forested depressions). Within each wetland, hydrologic …
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Plant communities along Irish roads: the impact of humans and potential to improve biodiversity
The vegetation, soil nutrients and soil seed banks of road verges (located along a national road scheme in the south of the Republic of Ireland) were examined along with their adjacent fields plus reference points in the non-road landscape. In addition, a controlled experiment was undertaken to …
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Pattern and process in South Coast dune fynbos : population, community and landscape level studies
The study aimed to explain vegetation dynamics in response to disturbance in a dune landscape comprising a mosaic and admixture of grassland, fynbos and thicket. A hierarchical approach directed investigations at the landscape, community and population levels, with emphasis on seed banks. The study …
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Initial Revegetation Of Small But Severely Disturbed Areas In The Oak-Hickory Forest Of Southwest Missouri
… ten centimeter depth, destroying roots and above ground vegetation. The areas differed primarily in one year increments since disturbance, through five years. Community development was observed, as characterized by 1) increasing number of species, 2) increasing ratio of woody species to total …
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The functional ecology of Eastern Rûens Shale Renosterveld
… in the Overberg region of South Africa, is a vegetation type both critically endangered and poorly understood. Centuries of agricultural activity in the region has resulted in a landscape typified by fragments of pristine vegetation, in addition to communities in various states of degradation, …
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The Spatial and Temporal Ecology of Seed Dispersal by Gorillas in Lopé National Park, Gabon: Linking Patterns of Disperser Behavior and Recruitment in an Afrotropical Forest
… areas that have a sparse canopy, flattening the ground vegetation. These locations can be beneficial to the growth and survival of the seed species they disperse. Thus, not only are gorillas effective in terms of depositing seeds great distances from parent plants, away from the highest seed rain …
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Spring Migration Ecology of American Woodcock (Scolopax minor) in the Central Management Region of the United States
… diurnal habitats (n=27), and documented diurnal vegetation characteristics at sites used (n=25). I found that woodcock moved an average of 370 m (SE 25.31 m) with the longest movement being 651 m. Diurnally, woodcock used mature hardwood landcover types, with an average canopy cover of 89% (SE …
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Comparative determination of tick burden and diversity in intensively managed wildlife estates under those with and without prescribed burning.
… number of 267 ticks were collected from the ground/vegetation in three tick management systems early burning, late burning and no burning in 36 transects across 3 ex-situ conservancies in Central, Lusaka and Southern provinces. These ticks were morphologically identified at the University of …
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Mat Movement in Coastal Louisiana Marshes: Effect of Salinity and Inundation on Vegetation and Nutrient Levels
… types on the ocurrence of the dominant emergent vegetation was discussed.</p> <p>The main difference in physical structure of the two marsh types was the presence of a mineral, non-buoyant layer at 25-45 cm depth in the rooted marsh, which could serve as an anchor for the overlying highly organic …
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Riparian vegetation and the soil seed bank five years after dam removal on the Elwha River, Washington
… the fluvial processes that drive riparian vegetation communities. Dam removal may reverse these effects; however, very few studies have examined the response of riparian vegetation to large dam removal and associated disturbances, such as the release of sediment. Understanding how dam …
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Integrative and Multi-scale Deep Learning for 3D Point Cloud Transmission Corridor Scene Segmentation: Noise Filtering, Attention-Fused Feature Integration, and Panoptic Network
… The study explores the relationship between vegetation height and plantation guidelines, identifying spatial layout consistency in utility layouts and transmission objects. This insight drives the development of three semantic analysis approaches: Semantic Utility Network (SUNet), …
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Floating wetlands for urban stormwater treatment
… in phosphorus distribution, harvest of above-ground vegetation is recommended to be conducted twice a year in June and September. Planted perennial macrophytes successfully adapted to stresses of the low dissolved oxygen (DO) concentrations (minimum: 1.2 mg/L), ice encasement, and relatively …
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Urban trees and biodiversity in Cork city
… other taxa (lichens, invertebrates, birds, and ground vegetation) in Cork city. There was a total of 102 individual trees studied across 6 Cork city sites, including the UCC arboretum (n=26); Cork city Marina (n=12); the Atlantic Pond (n=17); Kennedy Park (n=11); The Lee Fields (n=18); …
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The influence of edge contrast on the diversity and composition of ground beetle (Coleoptera: Carabidae) functional traits in a lowland heterogeneous landscape.
… to changes in the environment. Carabids (ground beetles) are well suited to studies of edge effects. Edge contrast, or the harshness of an edge, plays a vital role in explaining the distribution patterns of carabid beetles belonging to different habitat affinity groupings at forest edges. …
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Managing kangaroo grazing for the conservation of grassland and grassy woodland fauna
… population counts, tree canopy cover maps, ground vegetation structure, and reptile and birds counts to investigate the relationship between kangaroos, grass structure, and fauna. I found that: 1) there was a strong negative relationship between the abundance of kangaroos and grass structure …
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Managing kangaroo grazing for the conservation of grassland and grassy woodland fauna
… population counts, tree canopy cover maps, ground vegetation structure, and reptile and birds counts to investigate the relationship between kangaroos, grass structure, and fauna. I found that: 1) there was a strong negative relationship between the abundance of kangaroos and grass structure …
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