Relationship between Plant-Available Water and Soil Compaction in Brazilian Soils

Paulo Ivonir Gubiani (), Venesa Pinto do Santos, Rodrigo Pivoto Mulazzani, Luis Eduardo Akiyoshi Sanches Suzuki, Marta Sandra Drescher, Anderson Luiz Zwirtes, Ezequiel Koppe, Caroline Andrade Pereira, Lenise Raquel Mentges, Rodrigo de Moraes Galarza, Daniel Boeno, Keity Eurich, Darcy Bitencourt Junior, Clovis Dalri Marcolin and Eduardo Augusto Müller
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Paulo Ivonir Gubiani: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil
Venesa Pinto do Santos: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil
Rodrigo Pivoto Mulazzani: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil
Luis Eduardo Akiyoshi Sanches Suzuki: Center of Technology Development, Universidade Federal de Pelotas, Pelotas 96010-610, Rio Grande do Sul, Brazil
Marta Sandra Drescher: Unidade Santa Cruz do Sul, Universidade Estadual do Rio Grande do Sul, Santa Cruz do Sul 96816-501, Rio Grande do Sul, Brazil
Anderson Luiz Zwirtes: Instituto Federal de Santa Catarina, Câmpus São Miguel do Oeste (IFSC-SMO), São Miguel do Oeste 89900-000, Santa Catariana, Brazil
Ezequiel Koppe: Instituto Federal de Santa Catarina, Campus São Carlos (IFSC-SC), São Carlos 89885-000, Santa Catariana, Brazil
Caroline Andrade Pereira: Empresa de Assistência Técnica e Extensão Rural (Emater/RS-Ascar), Novo Cabrais 96545-000, Rio Grande do Sul, Brazil
Lenise Raquel Mentges: Empresa de Assistência Técnica e Extensão Rural (Emater/RS-Ascar), Novo Cabrais 96545-000, Rio Grande do Sul, Brazil
Rodrigo de Moraes Galarza: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil
Daniel Boeno: Departamento de Sustentabilidade Ambiental, Universidade Tecnológica do Uruguai, Durazno 97000, Uruguay
Keity Eurich: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil
Darcy Bitencourt Junior: Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense (IFSul), Câmpus Pelotas, Visconde da Graça, Pelotas 96060-290, Rio Grande do Sul, Brazil
Clovis Dalri Marcolin: Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul (IFRS), Câmpus Sertão, Sertão 99170-000, Rio Grande do Sul, Brazil
Eduardo Augusto Müller: Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria 97105-900, Rio Grande do Sul, Brazil

Sustainability, 2024, vol. 16, issue 16, 1-13

Abstract: The capacity of soil to retain water and make it available to plants is an essential soil functions for the sustainability of terrestrial ecosystems. A lot of progress has been made in estimating water retention and availability as a function of soil texture. On the other hand, a lower effort has been dedicated to seeking correlations between plant-available water (AW) and soil compaction. In this study, we compiled a dataset with 2479 records from experiments conducted in Brazilian soils to evaluate the relationship between AW and bulk density (BD). The dataset was split into sub-datasets defined by soil textural classes to reduce the effect of texture on AW–BD relationships. In each sub-dataset, AW–BD relationships were described by linear regression. In general, there was a weak association between AW and BD. The strongest correlations were found in the Silty Loam (R 2 = 0.26) and Loam (R 2 = 0.13) classes. However, the partitioning of the overall dataset by textural classes was not effective to eliminate the effect of texture on AW–BD relationships. Still, the data showed that soil compaction may increase or reduce AW. Nevertheless, more experimental research is needed to bring a better understanding of how AW is affected by changes in BD.

Keywords: soil bulk density; pedotransfer function; water retention; soil texture (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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