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Ecohydrological study of watersheds ...

Bhat, Shirish.

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Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia./
作者:	Bhat, Shirish.
面頁冊數:	127 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3282.
Contained By:	Dissertation Abstracts International66-06B.
標題:	Engineering, Civil. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177945
ISBN:	0542177706

Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia.
Bhat, Shirish.

Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia. - 127 p.

Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3282.

Thesis (Ph.D.)--University of Florida, 2005.

Relationships among watershed physical characteristics and water quality parameters were explored for seven watersheds in Fort Benning, Georgia, using statistical analyses to identify chemical indicators of ecological changes. Correlations were identified among the indicators and watershed physical characteristics. Regression results suggested that pH, chloride, total phosphorus, total Kjeldahl nitrogen, total organic carbon, and total suspended solids are useful indicators of watershed physical characteristics that are susceptible to perturbations.

ISBN: 0542177706Subjects--Topical Terms:

783781
Engineering, Civil.

Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia.
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245 1 0 $a Ecohydrological study of watersheds within the military installation in Fort Benning, Georgia.
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500 $a Chairs: Kirk Hatfield; Jennifer Jacobs.
502 $a Thesis (Ph.D.)--University of Florida, 2005.
520 $a Relationships among watershed physical characteristics and water quality parameters were explored for seven watersheds in Fort Benning, Georgia, using statistical analyses to identify chemical indicators of ecological changes. Correlations were identified among the indicators and watershed physical characteristics. Regression results suggested that pH, chloride, total phosphorus, total Kjeldahl nitrogen, total organic carbon, and total suspended solids are useful indicators of watershed physical characteristics that are susceptible to perturbations.
520 $a The magnitude, frequency, duration, timing, and rate of change of hydrologic conditions regulate ecological processes in aquatic ecosystems. Analysis of 26 non-redundant hydrologic indices showed undisturbed watershed produced higher magnitude and more frequent low- and high-flows as compared to the disturbed watershed. Eighteen storm-based indices, grouped into four flow components, were proposed to statistically characterize hydrologic variation among different watersheds. Results showed that these storm-based indices might be used as surrogates to the indices derived from long-term data. Statistical analysis showed that the watershed physical characteristics such as military training land, road density, and the number of roads crossing streams predicted hydrologic indices such as storm-based baseflow index, bankfull discharge, response lag, and time of rise well.
520 $a Riparian vegetation has an important role in altering water quality in the forested watersheds. The leaching of organic or mineral products on the forest floor provides potential additional effects on water quality. In these areas, nutrients are released into the fresh water systems due to the leaching and decomposition of vegetation litter. The release of nutrients from plant litters prior to decomposition may be an important aspect of characterizing stream water quality. To explore nitrogen leaching in a riparian area during litterfall, Riparian Ecosystem Management Model developed by USDA-ARS has been applied. The simulated total Kjeldahl nitrogen masses in the study watershed were close to the observed values. The model effectively captured the trends of litter mass accumulation in the riparian area and subsequent high concentrations and masses during those periods.
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