Difference between revisions of "Soil water storage properties"
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<table class="sortable"><tr> | <table class="sortable"><tr> | ||
<th>Soil</th> | <th>Soil</th> | ||
| − | <th>Porosity (volume/volume)</th> | + | <th>Porosity <sup>2</sup> (volume/volume)</th> |
<th>Field capacity (volume/volume)</th> | <th>Field capacity (volume/volume)</th> | ||
<th>Wilting point (volume/volume)</th> | <th>Wilting point (volume/volume)</th> | ||
| − | <th>Porosity minus field capacity (volume/volume)<sup> | + | <th>Porosity minus field capacity (volume/volume)<sup>3</sup></th> |
| − | <th>Field capacity minus wilting point (volume/volume)<sup> | + | <th>Field capacity minus wilting point (volume/volume)<sup>4</sup></th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
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</table> | </table> | ||
<font size=1><sup>1</sup>Sources of information include [[References for trees|Saxton and Rawls]] (2006), [http://nrcca.cals.cornell.edu/soil/CA2/CA0212.1-3.php Cornell University], [http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=1130447039&topicorder=10&maxto=10 USDA-NIFA], [http://stormwater.pca.state.mn.us/index.php/File:Available_water_capacity.png Minnesota Stormwater Manual]<br> | <font size=1><sup>1</sup>Sources of information include [[References for trees|Saxton and Rawls]] (2006), [http://nrcca.cals.cornell.edu/soil/CA2/CA0212.1-3.php Cornell University], [http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=1130447039&topicorder=10&maxto=10 USDA-NIFA], [http://stormwater.pca.state.mn.us/index.php/File:Available_water_capacity.png Minnesota Stormwater Manual]<br> | ||
| − | <sup>2</sup>This value may be used to represent the volume of water that will drain from a bioretention media.<br> | + | <sup>2</sup>Soil saturation is assumed to be equal to the porosity.<br> |
| − | <sup> | + | <sup>3</sup>This value may be used to represent the volume of water that will drain from a bioretention media.<br> |
| + | <sup>4</sup>This value may be used to estimate the amount of water available for evapotranspiration | ||
</font size> | </font size> | ||
Revision as of 15:08, 16 January 2014
Recommended values for porosity, field capacity and wilting point for different soils.1
Link to this table.
| Soil | Porosity 2 (volume/volume) | Field capacity (volume/volume) | Wilting point (volume/volume) | Porosity minus field capacity (volume/volume)3 | Field capacity minus wilting point (volume/volume)4 |
|---|---|---|---|---|---|
| Sand | 0.43 | 0.17 | 0.025 to 0.09 | 0.26 | 0.11 |
| Loamy sand | 0.44 | 0.09 | 0.04 | 0.35 | 0.05 |
| Sandy loam | 0.45 | 0.14 | 0.05 | 0.31 | 0.09 |
| Loam | 0.47 | 0.25 to 0.32 | 0.09 to 0.15 | 0.19 | 0.06 |
| Silt loam | 0.50 | 0.28 | 0.11 | 0.22 | 0.17 |
| Sandy clay loam | 0.4 | 0.07 | |||
| Clay loam | 0.46 | 0.32 | 0.15 | 0.14 | 0.17 |
| Silty clay loam | 0.47 to 0.51 | 0.30 to 0.37 | 0.17 to 0.22 | 0.16 | 0.14 |
| Sandy clay | 0.43 | 0.11 | |||
| Silty clay | 0.47 | 0.05 | |||
| Clay | 0.47 | 0.32 | 0.20 | 0.15 | 0.12 |
1Sources of information include Saxton and Rawls (2006), Cornell University, USDA-NIFA, Minnesota Stormwater Manual
2Soil saturation is assumed to be equal to the porosity.
3This value may be used to represent the volume of water that will drain from a bioretention media.
4This value may be used to estimate the amount of water available for evapotranspiration
