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 49 for “"Forest vegetation"”.
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Mortality of native forest vegetation in the Kaimai ranges
Vegetation mortality has been evident in the Kaimai Ranges, North Island, New Zealand for at least 40 years and affects a wide range of species and forest types. The mortality occurs above 550 m altitude and on each prominence has a lower limit which corresponds closely with the predominant cloud …
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Testing methods for calibrating Forest Vegetation Simulator (FVS) diameter growth predictions
The Forest Vegetation Simulator (FVS) is a growth and yield modeling system widely-used for predicting stand and tree-level attributes for management and planning applications in North American forests. The accuracy of FVS predictions for a range of tree and stand level attributes depends a great …
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Incorporating Climate Sensitivity for Southern Pine Species into the Forest Vegetation Simulator
… global warming on North American forests have led to increasing calls to address climate change effects on forest vegetation in management and planning applications. The objectives of this project are to model contemporary conditions of soils and climate associated with the …
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Classification and dynamics of the forest vegetation of Hluhluwe Nature Reserve, Kwa Zulu-Natal
The forests of Hluhluwe Nature Reserve, Kwa Zulu-Natal, were examined to determine composition, grain, classification, dynamics and conservation value. Field sampling took the form of recording DBH for all species in twenty-one 0.04 ha circular plots, walking 5-metre wide transects in mature and …
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Incorporating Climate Sensitivity for Eastern United States Tree Species into the Forest Vegetation Simulator
Detecting climate-induced effects in forest ecosystems become increasingly important as more evidence of greenhouse-gas-related climate change were founded. The Forest Vegetation Simulator (FVS) is an important growth and yield model used to support management and planning on public forest lands …
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Soil Influence on Forest Vegetation Productivity and Patterns in the Eastern Cascades of Southern Oregon
Soils influence vegetation and can critically affect forest restoration results. Areas with similar parent materials can have changes in soil and vegetation across a slope, aspect, slope position, microtopography, and elevation. The objective of this project was to assess what soil characteristics …
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Sensitivity Analysis of the Forest Vegetation Simulator Southern Variant (FVS-Sn)for Southern Appalachian Hardwoods
The FVS-Sn model was developed by the USDA Forest Service to project and report forest growth and yield predictions for the Southern United States. It is able to project forest growth and yield for different forest types and management prescriptions, but it is a relatively new, complex, and …
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Forest vegetation response to the application of municipal sewage sludge in the coastal western hemlock zone
… investigating the option of applying sludge to forest lands as a fertilizer for enhanced timber production. A joint project of the University of British Columbia and the Greater Vancouver Regional District is currently looking at the effects of sludge application on managed forest ecosystems. …
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Breeding Bird and Small Mammal Populations in Relation to the Forest Vegetation of the Subarctic Region of Northern Manitoba
Made available in DSpace on 2014-12-04T22:46:14Z (GMT). No. of bitstreams: 1 6100126.pdf: 6358830 bytes, checksum: a65212ebde0a34eb5be978208ac1391b (MD5) Previous issue date: 1960
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Potential Silvicultural Effects on Bald Eagle Nesting Substrate and Economic Yields at a Navy Installation in the Chesapeake Bay: An Approach Using the Forest Vegetation Simulator and Mahalanobis Distance
… providing financial means through the sale of forest products. This study used forest inventory and bald eagle nest site data to investigate the potential effects of silviculture on bald eagle nesting habitat at Naval Support Facility Indian Head. Mahalanobis distance was used to define and …
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Creation of a geographic information system database of Pacific Spirit Park
… was carried out. It exemplified how data on forest vegetation damage can be correlated with other environmental variables (e.g., soils, topography, forest cover, hydrology). Correlations were identified between forest vegetation damage and topography, areas with a high water table and along …
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Ecology, history, management and conservation of the multipurpose Forest of Wyre
… historical account of the management of Wyre Forest over the last millennium and to interpret these events by analysing existing forest vegetation; to describe in detail the phytosociological nature of the forest and determine a range of environmental factors which influenced these vegetation …
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Late quaternary palaeoenvironments at Vankervelsvlei, near Knysna, South Africa
… on the use of fossil pollen as an indicator of vegetation change from which environmental conditions are inferred. Several additional lines of evidence including sedimentological and geochemical data are used to corroborate pollen findings. The narrative of environmental change at the site has …
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Criteria for Recreation Site Selection on Flood Control Reservoirs-Case Studies
… selection are soils, topography, access, wind, vegetation, land ownership, distribution of the sites, bridges and open-water and cove locations. Once the sites were selected, they were evaluated and assigned priorities for development according to their access, soils, topography, shoreline, …
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Evaluation of the use of remotely sensed images to speciate mixed Appalachian forests
… digital camera has potential for use in detailed forest vegetation management, and they offer a number of advantages over conventional aerial photographs. The aim of the study was to determine the ability to speciate mixed Appalachian hardwood forests using the Airborne Data Acquisition and …
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Monitoring Squirrels from the Sky: Applications of Uncrewed Aerial Systems-Based Bioacoustic and Vegetation Monitoring Regimes for Mohave Ground Squirrel
… live and camera trapping. Chapter two captured vegetation information within MGS ranges using UAS-based multiband imagery and developed a random forest vegetation classification model for the study area, allowing for a better understanding of the vegetation that is most common within MGS ranges. …
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Animal-habitat relationships in the Knysna forest : discrimination between forest types by birds and invertebrates
Some silvicultural practices in the Knysna Forest are aimed at the sustained-yield production of valuable timber tree species, albeit on limited areas only. This study investigates effects of forest plant species composition and physiognomy on bird and invertebrate communities in three discrete, …
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Influence of elevation on tree species distribution and growth in the southern Appalachian Mountains
… been an area of interest for the analysis of forest species growth and composition. Past forest vegetation studies focus on species composition and structure for relatively local scale research areas. Species distribution within this geographic area was compiled from studies published from …
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