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 10 of 10 for “"temperate deciduous forest"”.
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Differential Canopy Leaf Flushing and Site Nitrogen Status Facilitate Invasive Species Establishment in Temperate Deciduous Forest Understories
… structure and function worldwide. In the temperate forests of the northeastern United States invasive plant species frequently establish and colonize edge environments; however, they are not confined to these areas. In this study, I hypothesized that nonnative species presence would be …
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The Impact of Neighborhood-Based Processes on Demography and a Decline in Species Diversity in a Temperate Deciduous Forest
… species, Acer saccharum (Sugar maple), in a deciduous forest in central Illinois, U.S.A. during 1939--2001. First, the impact of density-dependence, interspecific competition, and disturbance on mortality and recruitment of tree species was evaluated. Second, neighbor-specific transition …
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The effects of accelerated soil acidification on aggrading temperate deciduous forests: The Fernow Experimental Forest Long Term Soil Productivity (LTSP) Study at 13 years
Many temperate forests in the Eastern US are young and have experienced decades of elevated inputs of acidic compounds from the atmosphere. As a result, I used the Fernow Experimental Forest Long Term Soil Productivity (LTSP) experiment near Parsons, WV to determine how ongoing acidic deposition …
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Estimation and mitigation assessment of N₂O emission and nitrate leaching in a mountainous catchment in South Korea using the LandscapeDNDC model
… and water content (10 cm soil depth) from temperate deciduous forest sites located at three different altitudes and thus different exposure to atmospheric N deposition (24 - 51 kg N ha-1). Application of the adjusted meteorological data showed better prediction of soil temperature and water …
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The Role of Floods in Particulate Organic Matter Dynamics of a Southern Appalachian River/Floodplain Ecosystem
… inputs (274-625 g m-2 y-1) were typical of a temperate deciduous forest, but lower than other floodplain forests in the eastern United States. Mean aboveground herbaceous net primary production ranged from 61-439 g m-2 y-1 and leaf breakdown rates of 4 tree species ranged from 0.001-0.010 d-1. …
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Mapping individual trees from airborne multi-sensor imagery
… to detect species at pixel and ITC levels in a temperate deciduous forest in the UK. In addition, we modified the workflow to monitor physiological responses of two oak species with respect to environmental gradients in a Mediterranean woodland in Spain. The results show that our scheme can …
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Thirty-year Changes in Mineral Soil C in a Cumberland Plateau Forest as Influenced by Inorganic-N, Soil Texture, and Topography
… the Camp Branch Watershed, a second growth oak forest on the Cumberland Plateau in central Tennessee, in July of 1976 and archived. These points were re-sampled in July of 2006 and both archived and new samples of the 0 to 10 cm increment of the mineral soil were analyzed for C and N using the …
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Fire-driven changes to tree drought vulnerability and carbon storage in temperate broadleaf forests
… to increase drought stress and mortality in forests. Concurrent changes to natural and anthropogenic fire regimes underscore the potential for large-scale impacts on forest ecosystems and carbon cycling. The sensitivity of forests to these changes will require an understanding of tree …
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Trait-based approaches to understanding the response of forest understory herbs to environmental variation
Ecosystems are complex and subject to changes in resource availability over a range of temporal and spatial scales. Understanding relationships between abiotic conditions and plant fitness components (i.e., survival, growth, and performance) can provide valuable insights into how populations and …
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Vliv světla na složení a diverzitu lesní vegetace v Českém Středohoří
Světlo hraje důležitou roli v lesních ekosystémech, protože jeho snížená dostupnost je limitujícím faktorem pro rozvoj bylinného patra a růst semenáčků dřevin. Význam světla pro druhové složení a diverzitu vegetace nebyl dosud v České republice dostatečně prozkoumán. Tato práce přináší poznatky o …