2013
DOI: 10.1007/s11104-013-1946-z
|View full text |Cite
|
Sign up to set email alerts
|

Quantifying coupled deformation and water flow in the rhizosphere using X-ray microtomography and numerical simulations

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

3
73
0

Year Published

2014
2014
2021
2021

Publication Types

Select...
6
1
1

Relationship

1
7

Authors

Journals

citations
Cited by 56 publications
(76 citation statements)
references
References 41 publications
3
73
0
Order By: Relevance
“…SWC is also sensitive to changes in soil 15 structure. The wet end of SWC readily responds to changes in bulk density (e.g, tillage and compaction, root and macro fauna activity, freezing and thawing, drying and rewetting) (Aravena et al, 2013;Ghezzehei, 2000;Or et al, 2000;Ruiz et al, 2015). SWC is typically represented by monotonic sigmoid function, the most common being van Genuchten's (van Genuchten, 1980) parameter that indicates the matric potential at which maximum drainage of soil water occurs; and > (1 < > < ∞) and A = 1 − 1/> are shape parameters that reflect the spread of the SWC function.…”
Section: Soil Water Characteristic 10mentioning
confidence: 99%
“…SWC is also sensitive to changes in soil 15 structure. The wet end of SWC readily responds to changes in bulk density (e.g, tillage and compaction, root and macro fauna activity, freezing and thawing, drying and rewetting) (Aravena et al, 2013;Ghezzehei, 2000;Or et al, 2000;Ruiz et al, 2015). SWC is typically represented by monotonic sigmoid function, the most common being van Genuchten's (van Genuchten, 1980) parameter that indicates the matric potential at which maximum drainage of soil water occurs; and > (1 < > < ∞) and A = 1 − 1/> are shape parameters that reflect the spread of the SWC function.…”
Section: Soil Water Characteristic 10mentioning
confidence: 99%
“…In their study, the initial root structure could extract water up to 21% in the compacted soil close to the rhizosphere, due to dynamic interactions taking place with high spatial and temporal variability. In addition, in 2014, the authors (Aravena et al 2014) adopted the same approach to quantify the effect of deformation and fluid flow in the rhizosphere by performing simulations at the normal stress range of 100-400 kPa (Aravena et al 2014). The experimental results indicated that measured rhizosphere compaction by roots via localized soil compaction increased the simulated water flow to the roots by 27% as compared to an uncompacted fine-textured soil of low bulk density.…”
Section: Modeling and Ct Experimental Work On Root-soil Interactionsmentioning
confidence: 99%
“…The excellent work by Aravena and coworkers has paved the way for further rhizoshpere studies. Aravena et al (2014) demonstrated how plant roots through localized mechanical stress increases the fusion of alreadyexisting extremely low-density soil aggregates. This increases the amount of potent flow paths for water and nutrients under unsaturated conditions for constant inter-aggregate gas exchange gaps.…”
Section: Additional Trends and Conclusionmentioning
confidence: 99%
See 1 more Smart Citation
“…Existing studies suggest an increase in soil density around the roots (Aravena et al 2014;Bruand et al 1996;Dexter 1987b). However, soil densification around the roots may not be the general rule.…”
Section: Introductionmentioning
confidence: 98%