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 92 for “"Forest types"”.
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Relationships Between Oak-Hickory Forest Types and Soils in Central Illinois
Made available in DSpace on 2014-12-09T22:25:47Z (GMT). No. of bitstreams: 1 6808060.pdf: 2678507 bytes, checksum: 5edf49358a2b0858fba281e3c11ffc30 (MD5) Previous issue date: 1967
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Fire and stand dynamics in different forest types of the West Khentey Mountains, Mongolia
Die vorgelegte Forschungsarbeit beschäftigt sich vorwiegend mit der Rekonstruktion historischer Feuerregime und der Bestandesstruktur und -dynamik verschiedener Waldgesellschaften im nordwestlichen Khentey Gebirge, Mongolei. Hierbei wurden die Baumartenzusammensetzung, Regeneration, radiale …
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Mortality Assessment of Redwood and Mixed Conifer Forest Types in Santa Cruz County Following Wildfire
… Mountains burning approximately 7,819 acres. Foresters and other land managers were left with challenging decisions on how to evaluate tree mortality. Big Creek Lumber Company, California Polytechnic State University, San Luis Obispo (Cal Poly)’s Swanton Pacific Ranch (SPR), and other resource …
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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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Insect diversity and composition during the wet and dry seasons in three forest types of Johor, Malaysia
The insect diversity and abundance in three forest types namely: Endau Rompin (pristine lowland forest) Gunung Ledang (pristine highland forest) and Bukit Soga (degraded lowland forest) in Johor, Malaysia were studied. The study focused on 10 common insect orders. The objectives are (1) to …
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Forest soil and vegetation characteristics in two forest types following wildfire in the Shenandoah National Park, Virginia
… This study was established to measure post-fire forest soil and vegetation characteristics in both the mixed pine and mixed oak forest types occurring on Dovel Mountain in the Shenandoah National Park, Virginia. Vegetation and soil results represent one (1989) and two (1990) growing seasons …
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Interacting Effects of Disturbance, Management, and Climate Drive Landscape-scale Change Across Contrasting Temperate Forest Types in the 21st century.
North Carolina State University Theses Geospatial Analytics.
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Development and Application of a Classification System for Undisturbed and Disturbed Tropical Montane Forests Based on Vegetation Structure
… of undisturbed and disturbed montane rain forest ecosystems in Southern Ecuador. The aim of the study presented here was the development and application of a classification system based on structural characters for both, undisturbed and disturbed forests. In an altitude between 1570 m …
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Predicting forest cover types in Southwestern Virginia using topographic information
… between physical site factors and existing forest communities in southwestern Virginia. A pair of dichotomous keys was produced that "predicted" the forest type most likely to occur in an area based on topography. Maps of predicted forest types, using the Trayis (1982) and SAF (1980) …
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Systematic conservation planning and South Africa's Forest Biome: An assesment of the conservation status of South Africa's forest and reccomdentations for their conservation
… conservation plan for the entire South African forest biome. This was done by addressing the following questions: What is the current state of the forest biome? How well are forests protected? How threatened are they? What are the conservation priorities, and what needs to be done to improve …
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Forest Mortality in Lake Tahoe Basin from 1985-2010: Influences of Forest Type, Stand Density, Topography and Climate
Widespread and synchronous outbreaks of forest mortality during the 1990s and continuing to present day have drastically altered millions of hectares of forestlands from Mexico to Alaska (Bentz 2009). Tree mortality is a complex process with a variety of both exogenous and endogenous factors …
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Landscape Ecology of Birds on Mount Leconte, Great Smoky Mountains National Park
… National Park. The present study explored how forest structure and composition of deciduous-coniferous ecotones influenced diversity, richness, and relative abundance of bird species and how bird species responded to the spruce-fir community.</p> <p>Using a form of the variable-circular plot …
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Acidification and eutrophication of forests on sandy soil: effects of forest type and deposition load
Forests on sandy soil did clearly acidify during the past decades, what was found to be related to high depositions of potentially acidifying compounds to the forest floor. Several factors are a stimulus for high atmospheric deposition load in these types of forest ecosystems. (1) Forests are often …
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Nutrient Dynamics of Forest Communities in Central Illinois
… separate investigations of nutrient cycling in forests were conducted at Robert Allerton Park, 7 km southwest of Monticello in east central Illinois. Research was conducted in the two dominant forest types of the region: (1) a floodplain community (Acer saccharinum dominant), and (2) an upland …
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Derivation of data for estimating coastal Virginia's potential timber growth
… growth tables for five defined coastal Virginia forest types were derived graphically by employing Gehrhardt's formula and published normal-yield information. The resultant tables depict the current periodic annual cubic-foot growth per acre expected of coastal Virginia forests on average site, …
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The diet and growth of a leaf-shredding caddisfly, Pycnopsyche, in streams of contrasting disturbance histories
… in streams draining a >60 year-old reference forest and a 16-year-old c1earcut (disturbed) forest at Coweeta Hydrologic Laboratory in southwestern North Carolina. The objective was to examine whether Pycnopsyche larvae grew better on fast-decaying leaf types more prevalent in the disturbed …
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Structure and function of western red cedar and western hemlock forests on northern Vancouver Island
Two forest types predominate on middle or upper-slope situations on northern Vancouver Island: an old-growth type dominated by western red cedar (Thujaplicata Donn) and western hemlock (Tsuga heterophylla (Raf.) Sarge) (the CH type), and a windstorm-derived, second-growth type dominated by western …
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The dynamics of the Afromontane forest remnants in the Southwestern Cape
This thesis identifies the major forest types present in the southwestern Cape and investigates the floristic and structural changes in vegetation composition across the indigenous forest ecotone. The dynamics of forest-fynbos boundaries of differing post-fire age are compared and patterns of …
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Forest songbird abundance and viability at multiple scales on the Monongahela National Forest, West Virginia
… at multiple scales, on the Monongahela National Forest, West Virginia. In each study I used landscape (25 km2), transect (2500 m), and point (50-m radius point count plot) scales.;In the first study, I investigated bird abundance and species richness at these scales in four major forest types: …
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The effect of native forest dynamics upon the arrangements of species in oak forests-analysis of heterogeneity effects at the example of epigeal arthropods
… of epigeal spiders was studied in a natural forest and in a managed forest. Additionally the effects of small-scale microhabitat heterogeneity of managed and unmanaged forests were determined by analysing the spider assemblages of three different microhabitat structures (i. vegetation, ii. …
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