Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
WEPP and GLEAMS simulations of runoff and soil loss from grazed pasture inthe southeastern United States
Autore:
Pitts, WE; Yoo, KH; Miller-Goodman, MS; de los Santos, WL; Yoon, KS;
Indirizzi:
Auburn Univ, Dept Agr Engn, Auburn, AL 36849 USA Auburn Univ Auburn AL USA 36849 Univ, Dept Agr Engn, Auburn, AL 36849 USA Auburn Univ, Dept Agron & Soils, Auburn, AL 36849 USA Auburn Univ Auburn AL USA 36849 Dept Agron & Soils, Auburn, AL 36849 USA Kongju Natl Univ, Dept Agr Engn, Kongju 314701, South Korea Kongju Natl Univ Kongju South Korea 314701 n, Kongju 314701, South Korea
Titolo Testata:
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
fascicolo: 7, volume: 34, anno: 1999,
pagine: 1397 - 1413
SICI:
1093-4529(1999)34:7<1397:WAGSOR>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Keywords:
simulation; models; grazed pastures; runoff; soil erosion;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Pitts, WE Auburn Univ, Dept Agr Engn, Auburn, AL 36849 USA Auburn Univ Auburn AL USA 36849 Agr Engn, Auburn, AL 36849 USA
Citazione:
W.E. Pitts et al., "WEPP and GLEAMS simulations of runoff and soil loss from grazed pasture inthe southeastern United States", J ENVIR S A, 34(7), 1999, pp. 1397-1413

Abstract

This study compared simulated values of surface runoff and erosion from two current erosion prediction technologies (WEPP and GLEAMS) to observed data for two grazing pressures on three pasture vegetation types (switchgrass,bermudagrass, and tall fescue) in the Tennessee Valley region of Alabama. Based on the results of statistical analysis for each forage type and grazing pressure, GLEAMS performed better than WEPP, although either model did not predict sediment loss within an acceptable level. Because it; was determined that grazing pressure had no significant impact on runoff and erosion from the experiment plots, the data for each forage were pooled over the same grazing pressure and the correlation between observed and simulated datawere analyzed. This analysis showed that overall, predicted runoff values for both WEPP and GLEAMS had linear relationship to observed data. When sediment loss was analyzed, GLEAMS predicted value showed significant correlation with observed data, while WEPP predicted values did not. The results indicate that models may be use as management decision aids on pastures in the southeastern U.S., but more refinement to the models and available input data is necessary before predictions wilt be consistently accurate.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 01:58:18