| Type of Document |
Master's Thesis |
| Author |
Booth, Jennifer Lynn
|
| URN |
etd-06122006-125429 |
| Title |
Influence of Controlled Density Arrays of Natural and Artificial Vegetation on Flow Field Characteristics |
| Degree |
Master of Science (M.S.) |
| Department |
Geography & Anthropology |
| Advisory Committee |
| Advisor Name |
Title |
| Patrick Hesp |
Committee Chair |
| John Pine |
Committee Member |
| Steve Namikas |
Committee Member |
|
| Keywords |
- planting density
- foredune management
|
| Date of Defense |
2006-05-19 |
| Availability |
unrestricted |
Abstract
The purpose of this study is to determine the ideal planting density for trapping sediment as a means for determining the most economic and efficient means of foredune development. Research was conducted along the Texas Gulf Coast, within Padre Island National Seashore over a two week period. Four pegboards were aligned perpendicular to oncoming wind direction. Artificial and natural vegetation were plugged into the pegboard at incremental increases in 5% vegetation cover using volumetric measures of both plant types. Both natural and artificial vegetation reduce wind speed proportionately higher between 30% and 50% vegetation density. Natural vegetation has a higher momentum flux compared to the artificial vegetation, however; the rate of change between the two is proportional. This suggests the artificial vegetation may act as a more ideal proxy for natural vegetation rather than solid elements. The sediment flux rate for natural vegetation showed a 90% reduction at a planting density of 18%. This is likely to be the lower limit of vegetation planting for foredune development. The low result in required percent cover for vegetation is likely a function of the low wind speeds experienced throughout the study period and it is suggested that a higher planting density be utilized.
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| Files |
| Filename |
Size |
Approximate Download Time
(Hours:Minutes:Seconds)
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56K Modem |
ISDN (64 Kb) |
ISDN (128 Kb) |
Higher-speed Access |
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Booth_thesis.pdf |
1.42 Mb |
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