2010
DOI: 10.1590/s0103-84782010005000055
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Funções de pedotransferência para estimativa da retenção de água em alguns solos do Rio Grande do Sul

Abstract: As propriedades hidráulicas do solo são determinações consideradas caras e de difícil obtenção. O uso de funções de pedotransferência (FPTs) consiste em uma alternativa para a obtenção dessas informações de forma mais fácil e com menor custo. O objetivo desse estudo foi desenvolver e validar FPTs para estimar a retenção de água em alguns solos do Estado do Rio Grande do Sul (RS). O trabalho foi realizado utilizando-se dados de análises físicas de solos pertencentes ao banco de dados do Laboratório do Sistema I… Show more

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Cited by 25 publications
(27 citation statements)
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“…Results related to higher TP and Ma and lower Db were obtained in this use of annual ryegrass (Figures 2a, 2c and 2g). In a completely saturated soil s=TP is found (DANE et al, 2002;MACHADO et al, 2008;MICHELON et al, 2010). Depending on the soil pore distribution, which is related to its structure and texture, the SWRC inflection point will present distinct values.…”
Section: Water Retention In the Soilmentioning
confidence: 99%
“…Results related to higher TP and Ma and lower Db were obtained in this use of annual ryegrass (Figures 2a, 2c and 2g). In a completely saturated soil s=TP is found (DANE et al, 2002;MACHADO et al, 2008;MICHELON et al, 2010). Depending on the soil pore distribution, which is related to its structure and texture, the SWRC inflection point will present distinct values.…”
Section: Water Retention In the Soilmentioning
confidence: 99%
“…Uma alternativa promissora é o emprego de funções de pedotransferência, que permitam obter estimativas dos mesmos resultados, a partir de outros atributos do solo cuja determinação seja mais comum, mais simples, mais rápida, mais barata ou que já sejam conhecidos, como a densidade do solo e os teores de areia, silte e argila (SILVA et al, 2008;DEXTER, RICHARD, 2009;CARDUCCI et al, 2011;MICHELON et al, 2010;OLIVEIRA et al, 2002;NEBEL et al, 2010;KHODAVERDILOO et al, 2011).…”
Section: Introductionunclassified
“…(OLIVEIRA et al, 2002, MICHELON et al, 2010NEBEL et al, 2010). However, its direct measurement demands much time and money (TOMASELLA et al, 2000;SANTRA;DAS, 2008;TWARAKAVI et al, 2009); and it is many times made unfeasible by practical or financial restrictions (SCHAAP et al, 2001).…”
Section: Introductionmentioning
confidence: 99%
“…Michelon et al (2010) generated PTFs for the RS State, however they utilized data from undisturbed samples. Here, as in the great majority of the soil surveys (base for this research), the data concerning water retention came from disturbed samples.…”
Section: Introductionmentioning
confidence: 99%
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