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Showing 1 to 20 of 68 for “"dendrochronology"”.
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Dendrochronology and the study of crannogs.
The dendrochronological potential of wood from two crannogs was evaluated. Consisting predominantly of non-oak species with fewer than 50 year-rings, the assemblages required the development of new techniques and approaches. The problem of validating cross-matches between short ring sequences was …
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The dendrochronology of the Navajo pueblitos of Dinetah
Pueblito sites include masonry structures and forked-stick hogans in defensible positions in the traditional Navajo homeland of Dinetah. Pueblitos have been a key piece of evidence used to infer a massive immigration of Puebloans into the Navajo country following the Spanish Reconquest of New …
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The development and application of a technique in dendrochronology
A dendrochronological technique was developed. It relies upon developing relative annual ring-width indices, and identifying unusually high yearly agreement in two or more samples. These agreements in the tree growth ring indices are called key years. Statistical procedures are developed for …
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Using dendrochronology to identify species-specific ice storm damage in Delaware
… based on the percentage of crown limbs broken. Dendrochronology was used to identify the radial growth signature of the ice storm in the tree rings of the four species studied. Overall, yellow poplar was most susceptible to ice storm damage followed by loblolly pine, red oak, and white oak. In …
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Plant xylem anatomy, dendrochronology and stable carbon isotopes as tools in rainfall reconstruction in Southern Africa
Within South Africa there is a growing need for a high resolution proxy rainfall data set that goes back beyond the historic record. As a contribution to meeting this need four techniques for rainfall reconstruction are evaluated. It is only from a new technique utilising measurements of vessel …
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Refining dendrochronology to evaluate the relationship between age and diameter for dominant riparian trees in the Redwood Creek watershed
<p>Methods of dendrochronology by means of incremental coring</p> <p>have been refined in this study for specific use in northern</p> <p>California riparian floodplains. Little information is available</p> <p>on riparian dendrochronology because of the challenges of</p> <p>analyzing riparian tree …
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Measuring changes in areal extent of historic wetlands at Great Sand Dunes National Monument, Colorado 1936-1995
… been monitored in Del Norte, CO since 1906. A dendrochronology study was done in the area of GRSA in 1980. The precipitation data, discharge and dendrochronology data were summed, averaged or offset for monthly or annual intervals prior to the dates of the aerial photo sets. These values were …
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Distribution and Dynamics of the Evergreen Understory Layer in Central Appalachian Highland Forests
… Highlands using plot data, remote sensing, dendrochronology, and modeling. First, leaf-off satellite remote sensing and topographic data were applied to map the spatial extent and distribution of R. maximum and K. latifolia with better than 80 percent accuracy. Second, plot data were used to …
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Applying dendrochronology visual crossdating techniques to the marine bivalve Arctica islandica and assessing the utility of master growth chronologies as proxies for temperature and secondary productivity in the Gulf of Maine
… archive and an instrumental series is required. Dendrochronology techniques were applied to the marine bivalve <em>Arctica islandica</em> to demonstrate the benefits of visual crossdating and replication of growth series (growth within one shell and between multiple shells in the same …
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Accepted Here: Cash, Blood or Stories
… favoring presence over absence and utilizing dendrochronology and dendroclimatology it is possible to trace the presence of Native stories across time and space.</p>
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An 828 Year Streamflow Reconstruction for the Jordan River Drainage Basin of Northern Utah
… in streamflow and climate. By utilizing dendrochronology this study seeks to better understand variability of streamflow in the Jordan River Drainage Basin over the last 828 years. A GIS model was used to identify potential sampling sites where tree growth would be sensitive to climate …
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Stand Dynamics in a Southern Appalachian Montane Pine Barren, Warm Springs Mountain, Virginia
… invertebrates. We used vegetation analysis and dendrochronology to document establishment and recruitment patterns and to identify successional trends at this site. Tree establishment of the dominant tree species (P. rigida and Quercus rubra L.) peaked following the last known fire event in the …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders.
… between remote sites. This feature allows to use dendrochronology, i.e. the scientific study of tree-ring patterns, as a dating tool. However, in Flanders tree-ring dating has seldom been applied and has often led to inconclusive results. Especially archaeological oak timbers or wood from …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders
… between remote sites. This feature allows to use dendrochronology, i.e. the scientific study of tree-ring patterns, as a dating tool. However, in Flanders tree-ring dating has seldom been applied and has often led to inconclusive results. Especially archaeological oak timbers or wood from …
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A Multidisciplinary Approach for Determining the Extents of the Beds of Complex Natural Lakes in Louisiana
… hydrology, archaeology, vegetation, dendrochronology and dendrohydrology of the ancient cypress fringe, nineteenth century land survey records, historical records, and time-series statistics were applied to determine the elevation range of ordinary high water. Research suggests that …
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The Edges Of Wood: Dendrochronological Analysis Of Three Seneca Iroquois Structures At Letchworth State Park, 1796-1831
… cabin, and the "Buffalo Tom" Jemison cabin. Dendrochronology (tree-ring dating) provided more precise construction dates for the council house and cabins. This technique indicated a date for the council house's construction of ca. 1820, with a modification episode ca. 1831, rather than in the …
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Factors affecting plant community composition and dynamics in the Ossipee Pine Barrens, New Hampshire
… accounts from residents and forest managers, and dendrochronology. Factors affecting forests since stand formation were analyzed individually and with multivariate techniques. Seed source variables explained the greatest amount of variation in vegetation, followed closely by fire-related …
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A Dendrochronological Analysis of Vegetation Change and Climate History in Two Southern Appalachian Balds, Craggy Gardens and Big Bald, NC
… dynamics in these systems. With the use of dendrochronology and GIS, this research project was aimed at 1) reconstructing the temporal and spatial patterns of tree encroachment into Craggy Gardens, a grass/heath bald, and determining the causal factors, and 2) investigating tree-growth …
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Forest dynamics of pine- and oak-dominated communities on southeastern-facing slopes of Warm Springs Mountain, Virginia
… from the higher elevation pine barren using dendrochronology and vegetation analysis. We studied trees in six 20 x 50 m plots to develop a tree ring chronology and document changes in stand composition and structure through time. We found an increase in fire-intolerant species and decline in …
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