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Masters Theses

Dendrochronology

Publication Year

Articles 1 - 6 of 6

Full-Text Articles in Social and Behavioral Sciences

Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner Dec 2014

Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner

Masters Theses

Research conducted during the past 30 years tested the use of tree rings to date mass movement events in the mountain areas of Europe and the western and southwestern United States, but few studies have been performed in the eastern U.S., where debris flows, landslides, and rock falls in the Appalachian Mountains pose a common threat to human life and property. One area of particular interest is Great Smoky Mountains National Park (GSMNP). For this study, I tested mature red spruce (Picea rubens Sarg.) trees located on or near a debris slide boundary on Mt. Le Conte (LC01) in ...


Climate Drivers Of Wildfire Activity In The Magdalena Mountains Of New Mexico, U.S.A., Elizabeth Anne Schneider Aug 2014

Climate Drivers Of Wildfire Activity In The Magdalena Mountains Of New Mexico, U.S.A., Elizabeth Anne Schneider

Masters Theses

In recent years, crown fires have raged through mixed-conifer forests in the American Southwest that historically experienced frequent, low-severity wildfires. Land management agencies now wish to restore wildfires to their historical range of variability, but this requires information on fire regimes before Euro-American disturbance took place. We characterized the historical fire regime of a high elevation, mixed-conifer forest in the Magdalena Mountains, New Mexico. This research evaluated the different climate drivers, represented by the Palmer Drought Severity Index (PDSI), the El NiƱo-Southern Oscillation (ENSO), the Pacific Decadal Oscillation (PDO), and the Atlantic Multidecadal Oscillation (AMO), that influence the occurrence of ...


A Dendroecological Evaluation Of The Effects Of Coal Ash On Tree Growth, Kingston Fossil Plant, Harriman, Tennessee, U.S.A., Niki Ann Garland May 2013

A Dendroecological Evaluation Of The Effects Of Coal Ash On Tree Growth, Kingston Fossil Plant, Harriman, Tennessee, U.S.A., Niki Ann Garland

Masters Theses

Tree growth is a function of many environmental variables, and it is possible to detect differences between natural and human-related factors on tree growth. Radial growth of trees in one year and in subsequent years that follow is influenced not only by climate and other overarching multi-year processes, but also by pulse disturbance events. On December 22, 2008, an embankment at an impoundment for wet storage of fly ash at the Kingston Fossil Plant, Harriman, Tennessee collapsed, releasing 4,434,400 cubic meters of coal ash into the Clinch and Emory Rivers, impacting aquatic life as well as terrestrial flora ...


Dendroclimatic Analysis Of Climate Oscillations For The Southeastern United States From Tree-Ring Network Data, Yanan Li May 2011

Dendroclimatic Analysis Of Climate Oscillations For The Southeastern United States From Tree-Ring Network Data, Yanan Li

Masters Theses

Dendroclimatological research along a geographical gradient is important to understanding both spatial and temporal characteristics of climate influences on tree growth. In this study, three tree-ring width chronologies, obtained from field collection and previous research, were used to represent tree growth along a longitudinal transect from coast to inland in the southeastern U.S.: Hope Mills, located at the Atlantic Coastal Plain; Linville Mountain, located on the eastern side of the Appalachian Mountains; and Gold Mine Trail, located on the western side of the Appalachians. The variations of ring width indices in chronologies reflect extreme climatic events such as severe ...


Influences Of Climate And Anthropogenic Disturbances On Wildfire Regimes Of The Zuni Mountains, New Mexico, U.S.A., Monica Tyson Rother Aug 2010

Influences Of Climate And Anthropogenic Disturbances On Wildfire Regimes Of The Zuni Mountains, New Mexico, U.S.A., Monica Tyson Rother

Masters Theses

This research examined the fire history of ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) forests in northwestern New Mexico. The study area included three sites in the Zuni Mountains of Cibola National Forest and one site along the boundary of El Malpais National Monument. I crossdated over 800 fire scars on 75 samples to reconstruct spatial and temporal characteristics of historic wildfire regimes. The Weibull Median Interval, Weibull Modal Interval, and Mean Fire Interval ranged from five to eight years across all sites and percent-scarred classes (all fires, 10% scarred, and 25% scarred) and indicated that low-severity ...


Fire History From Dendrochronological Analyses At Two Sites Near Cades Cove, Great Smoky Mountains National Park, U.S.A., Ian C. Feathers May 2010

Fire History From Dendrochronological Analyses At Two Sites Near Cades Cove, Great Smoky Mountains National Park, U.S.A., Ian C. Feathers

Masters Theses

Fire, logging, livestock grazing, and insect outbreaks are disturbances that have significantly influenced both the historic and present fire regimes. The composition and structure of vegetation communities within Great Smoky Mountains National Park (GSMNP) have likely changed in response to these disturbances. Two study sites (CRX, the near site, and CRT, the far site) were chosen along the Cooper Road Trail based on topographic separation, presence of mixed oak-pine communities, presence of fire-scarred yellow pine trees, and GSMNP land acquisition records. To quantify and evaluate fire regimes, individual fire histories were developed for each site from fire-scarred yellow pine trees ...