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Titolo:
DEVELOPMENT OF HYDROLOGICAL INDEXES TO AID CUMULATIVE IMPACT ANALYSISOF RIVERINE WETLANDS
Autore:
NESTLER JM; LONG KS;
Indirizzi:
USA,CORPS ENGINEERS,WATERWAYS EXPT STN,ENVIRONM LAB,3909 HALLS FERRY RD VICKSBURG MS 39180 USA,CORPS ENGINEERS,WATERWAYS EXPT STN,ENVIRONM LAB VICKSBURG MS 39180
Titolo Testata:
Regulated rivers
fascicolo: 4, volume: 13, anno: 1997,
pagine: 317 - 334
SICI:
0886-9375(1997)13:4<317:DOHITA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENVIRONMENTAL-CHANGE; GROUNDWATER; WATER; BALQUHIDDER; BASIN; SPAIN;
Keywords:
CUMULATIVE IMPACT ASSESSMENT; ENVIRONMENTAL IMPACT; CACHE RIVER; WHITE RIVER; STREAMFLOW; HYDROLOGY; DAILY VALUES; HARMONIC ANALYSIS; NONLINEAR REGRESSION MODELS; TIME-SCALE ANALYSIS; ROOT-MEAN-SQUARE ERROR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
J.M. Nestler e K.S. Long, "DEVELOPMENT OF HYDROLOGICAL INDEXES TO AID CUMULATIVE IMPACT ANALYSISOF RIVERINE WETLANDS", Regulated rivers, 13(4), 1997, pp. 317-334

Abstract

A hydrological analysis of historic stream data collected with the gauge on the Cache River at Patterson, Arkansas, USA, is presented as the basis for cumulative impact analysis of riverine wetlands. Subtle, long-term changes in hydroperiod, which could collectively have major effects on wetland function, are quantified. Harmonic analysis, time-scale analysis, and conventional methods of hydrological analysis of gauge data, at decade intervals, are employed, showing a steady decline in the magnitude and predictability of the baseflow during low flow periods, beginning with the 1920s and becoming increasingly more pronounced into the 1980s. Complementary information suggests that hydroperiodalterations are associated with increased groundwater pumping to support rice agriculture in the basin. These hydrological methods are simple enough for routine application (when adequate data are available) but sufficiently sophisticated to identify subtle changes in hydroperiod associated with cumulative effects. The changes in hydroperiod identified using these methods may have potential to explain changes in biotic communities or wetlands structure as part of comprehensive wetlands studies. (C) 1997 by John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 19:09:41