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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
21/04/2017 |
Actualizado : |
05/10/2017 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BERETTA, A.; CARRASCO-LETELIER, L. |
Afiliación : |
ANDRES NICOLAS BERETTA BLANCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LEONIDAS CARRASCO-LETELIER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
USLE/RUSLE K-factors allocated through a linear mixed model for Uruguayan soils: resarch note. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Ciencia e Investigación Agraria v. 44, n.1 ,p. 100-112, 2017. |
DOI : |
10.7764/rcia.v44i1.1622 |
Idioma : |
Español |
Notas : |
Article history: Received June 06, 2016.// Accepted January 17, 2017 |
Contenido : |
Abstract: Soil erosion byrainfall is a process that demands management, both for the prevention of excessive soil erosion
and for the protection of the quality of freshwater bodies. Erosion coefficients (K-factors) of the
universal soil loss equation (USLE)/revised USLE (RUSLE) model were assigned to 99 mapped
Uruguayan soil types at 1:1,000,000 scale. This work developed a linear mixed model (LMM)
with 79 soils with assigned K-factors, in which the following variables were considered: soil
taxonomy, chemical composition, and parent material. The developed LMM had an R2=0.86,
in which the soil taxonomy (p<0.0001), parent material (p=0.0174), clay (p=0.0005) and sand
(p=0.017) contents had significant statistical effects. The prediction capacity of this model
was assessed with 10 soils not previously used in development of the LMM with assigned
K-factors. The prediction assessment had an R2=0.84 and a mean error of 9.08% of the mean
K-factor value. The LMM developed was used for the allocation of K-factors to soils mapped
at a 1:20,000-resolution. Thus, the use of LMM increased the soil area with assigned K-factors
from 111,822 km2 (at a scale of 1:1,000,000) to 174,132 km2 (1:20,000). |
Palabras claves : |
EROSIÓN DEL SUELO; PARENT MATERIAL; SOIL CHEMISTRY; SOIL CLASSIFICATION; SOIL TEXTURE. |
Thesagro : |
CLASIFICACIÓN DE SUELOS; QUIMICA DEL SUELO; TEXTURA DEL SUELO; URUGUAY. |
Asunto categoría : |
P32 Clasificación y génesis del suelo |
Marc : |
LEADER 02070naa a2200265 a 4500 001 1057111 005 2017-10-05 008 2017 bl uuuu u00u1 u #d 024 7 $a10.7764/rcia.v44i1.1622$2DOI 100 1 $aBERETTA, A. 245 $aUSLE/RUSLE K-factors allocated through a linear mixed model for Uruguayan soils$bresarch note.$h[electronic resource] 260 $c2017 500 $aArticle history: Received June 06, 2016.// Accepted January 17, 2017 520 $aAbstract: Soil erosion byrainfall is a process that demands management, both for the prevention of excessive soil erosion and for the protection of the quality of freshwater bodies. Erosion coefficients (K-factors) of the universal soil loss equation (USLE)/revised USLE (RUSLE) model were assigned to 99 mapped Uruguayan soil types at 1:1,000,000 scale. This work developed a linear mixed model (LMM) with 79 soils with assigned K-factors, in which the following variables were considered: soil taxonomy, chemical composition, and parent material. The developed LMM had an R2=0.86, in which the soil taxonomy (p<0.0001), parent material (p=0.0174), clay (p=0.0005) and sand (p=0.017) contents had significant statistical effects. The prediction capacity of this model was assessed with 10 soils not previously used in development of the LMM with assigned K-factors. The prediction assessment had an R2=0.84 and a mean error of 9.08% of the mean K-factor value. The LMM developed was used for the allocation of K-factors to soils mapped at a 1:20,000-resolution. Thus, the use of LMM increased the soil area with assigned K-factors from 111,822 km2 (at a scale of 1:1,000,000) to 174,132 km2 (1:20,000). 650 $aCLASIFICACIÓN DE SUELOS 650 $aQUIMICA DEL SUELO 650 $aTEXTURA DEL SUELO 650 $aURUGUAY 653 $aEROSIÓN DEL SUELO 653 $aPARENT MATERIAL 653 $aSOIL CHEMISTRY 653 $aSOIL CLASSIFICATION 653 $aSOIL TEXTURE 700 1 $aCARRASCO-LETELIER, L. 773 $tCiencia e Investigación Agraria$gv. 44, n.1 ,p. 100-112, 2017.
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Registros recuperados : 2 | |
1. | | CARRASCO-LETELIER, L.; SAWCHIK, J.; BENNADJI, Z.; MENDOZA, Y.; EUGUREN, G.; RIVAS, N.; GIRÁLDEZ, G.; MUNKITRICK, K. Herramientas para la producción y sustentabilidad ambiental en cuencas de aptitud forestal: presentación Proyecto INIA PSA07, SRRN (Sociedad Rural Río Negro), Young, diciembre 2007. Young, Río Negro (Uruguay): INIA, 2007. 75 p (INIA Serie Actividades de Difusión ; 572)Tipo: Actividades de Difusión |
Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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2. | | CARRASCO-LETELIER, L.; SUAREZ-PIREZ, C.; FERNANDEZ, M.P.; GIRALDEZ, G.; OLIVERA, L.; MENDOZA, Y.; SAWCHIK, J.; EGUREN, G.; RIVAS, N.; MUNKITTRICK, K.; RACHID, A.; BENNADJI, Z.; SCOZ, R.; CANEDO, L.; OJEDA, P.; VILLAR, S. Environmental management tools for basins with forest plantations: advances and proposals. In: WORKSHOP INTERNACIONAL, 1., 2009, Pelotas, RS, BR. Sustentabilidade socioambiental da bacia da Lagoa Mirim. Pelotas: EMBRAPA Clima Temperado, 2010 p. 125-133.Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Treinta y Tres. |
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Registros recuperados : 2 | |
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