Difference between revisions of "Soil water storage properties"
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| − | <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] (See [[References for trees]]<br> |
<sup>2</sup>Soil saturation is assumed to be equal to the porosity.<br> | <sup>2</sup>Soil saturation is assumed to be equal to the porosity.<br> | ||
<sup>3</sup>This value may be used to represent the volume of water that will drain from a bioretention media.<br> | <sup>3</sup>This value may be used to represent the volume of water that will drain from a bioretention media.<br> | ||
Revision as of 14:01, 19 May 2022
Recommended values for porosity, field capacity and wilting point for different soils.1
Link to this table.
| Soil | Hydrologic soil group | 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 | A (GM, SW, or SP) | 0.43 | 0.17 | 0.025 to 0.09 | 0.26 | 0.11 |
| Loamy sand | A (GM, SW, or SP) | 0.44 | 0.09 | 0.04 | 0.35 | 0.05 |
| Sandy loam | A (GM, SW, or SP) | 0.45 | 0.14 | 0.05 | 0.31 | 0.09 |
| Loam | B (ML or OL) | 0.47 | 0.25 to 0.32 | 0.09 to 0.15 | 0.19 | 0.16 |
| Silt loam | B (ML or OL) | 0.50 | 0.28 | 0.11 | 0.22 | 0.17 |
| Sandy clay loam | C | 0.4 | 0.07 | |||
| Clay loam | D | 0.46 | 0.32 | 0.15 | 0.14 | 0.17 |
| Silty clay loam | D | 0.47 to 0.51 | 0.30 to 0.37 | 0.17 to 0.22 | 0.16 | 0.14 |
| Sandy clay | D | 0.43 | 0.11 | |||
| Silty clay | D | 0.47 | 0.05 | |||
| Clay | D | 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 (See References for trees
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
