Testing a Grid-Based Soil Erosion Model across Topographically Complex Landscapes

Simple item page
dc.contributor.authorBonilla, Carlos A.
dc.contributor.authorNorman, John M.
dc.contributor.authorMolling, Christine C.
dc.contributor.authorKarthikeyan, K. G.
dc.contributor.authorMiller, Paul S.
dc.date.accessioned2024-01-10T12:09:15Z
dc.date.available2024-01-10T12:09:15Z
dc.date.issued2008
dc.description.abstractThis study was conducted to evaluate the overall performance of the Precision Agricultural-Landscape Modeling System (PALMS) for calculating runoff and soil loss under cropped conditions. The PALMS model uses a lognormal distribution of saturated hydraulic conductivity across the fields to simulate typical soil heterogeneity within soil texture classes. Runoff and soil loss data were collected in three farm fields for a total of 75 runoff events during 2 yr under six cropping scenarios (alfalfa [Medicago sativa L.] and corn [Zed mays L.] no-tilled, corn and soybean [Glycine max (L.) Merr.] moldboard plowed, and alfalfa and corn chisel plowed). For individual storms, calculated runoff and sediment loss from PALMS were compared with corresponding measurements for each farm during the entire cropping season. The coefficient of determination (r(2)) between runoff calculations and measurements was 0.84. The r(2) between soil loss calculations and measurements with the storm-by-storm simulations during both seasons was 0.78. Based on these continuous simulation results, the PALMS calculations appear to have lower relative errors with large events than small events, a desirable result because large events are most important in assessing the environmental consequences of management practices.
dc.description.funderUSDA Cooperative State Research, Education, Extension Service's Water Quality Program
dc.description.funderNatural Resources Conservation Service
dc.description.funderBureau of Watershed Management
dc.description.funderRunoff Management Section for Non-Point Source Pollution Abatement
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.2136/sssaj2007.0310
dc.identifier.issn0361-5995
dc.identifier.urihttps://doi.org/10.2136/sssaj2007.0310
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76472
dc.identifier.wosidWOS:000260970900031
dc.information.autorucAgronomía e Ing. Forestal;Bonilla C;S/I;80465
dc.issue.numero6
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final1755
dc.pagina.inicio1745
dc.publisherSOIL SCI SOC AMER
dc.revistaSOIL SCIENCE SOCIETY OF AMERICA JOURNAL
dc.rightsregistro bibliográfico
dc.subjectLOSS EQUATION
dc.subjectAGRICULTURAL LANDSCAPE
dc.subjectSPATIAL VARIABILITY
dc.subjectCARBON BALANCE
dc.subjectWATER
dc.subjectINFILTRATION
dc.subjectSEDIMENT
dc.subjectRUNOFF
dc.subjectDEPOSITION
dc.subjectPERFORMANCE
dc.subject.ods02 Zero Hunger
dc.subject.ods15 Life on Land
dc.subject.odspa02 Hambre cero
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleTesting a Grid-Based Soil Erosion Model across Topographically Complex Landscapes
dc.typeartículo
dc.volumen72
sipa.codpersvinculados80465
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Testing a Grid-Based Soil Erosion Model across Topographically Complex Landscapes.pdf
Size:
3.03 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas