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>Hydrologic soil group</th> | ||
<th>Porosity <sup>2</sup> (volume/volume)</th> | <th>Porosity <sup>2</sup> (volume/volume)</th> | ||
<th>Field capacity (volume/volume)</th> | <th>Field capacity (volume/volume)</th> | ||
| Line 12: | Line 13: | ||
<tr> | <tr> | ||
<td>Sand</td> | <td>Sand</td> | ||
| + | <td>A (GM, SW, or SP)</td> | ||
<td>0.43</td> | <td>0.43</td> | ||
<td>0.17</td> | <td>0.17</td> | ||
| Line 20: | Line 22: | ||
<tr> | <tr> | ||
<td>Loamy sand</td> | <td>Loamy sand</td> | ||
| + | <td>A (GM, SW, or SP)</td> | ||
<td>0.44</td> | <td>0.44</td> | ||
<td>0.09</td> | <td>0.09</td> | ||
| Line 29: | Line 32: | ||
<tr> | <tr> | ||
<td>Sandy loam</td> | <td>Sandy loam</td> | ||
| + | <td>A (GM, SW, or SP)</td> | ||
<td>0.45</td> | <td>0.45</td> | ||
<td>0.14</td> | <td>0.14</td> | ||
| Line 35: | Line 39: | ||
<td>0.09</td> | <td>0.09</td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Loam</td> | <td>Loam</td> | ||
<td>0.47</td> | <td>0.47</td> | ||
| + | <td>B (ML or OL)</td> | ||
<td>0.25 to 0.32</td> | <td>0.25 to 0.32</td> | ||
<td>0.09 to 0.15</td> | <td>0.09 to 0.15</td> | ||
| Line 44: | Line 48: | ||
<td>0.16</td> | <td>0.16</td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Silt loam</td> | <td>Silt loam</td> | ||
| + | <td>B (ML or OL)</td> | ||
<td>0.50</td> | <td>0.50</td> | ||
<td>0.28</td> | <td>0.28</td> | ||
| Line 53: | Line 57: | ||
<td>0.17</td> | <td>0.17</td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Sandy clay loam</td> | <td>Sandy clay loam</td> | ||
| + | <td>C</td> | ||
<td>0.4</td> | <td>0.4</td> | ||
<td></td> | <td></td> | ||
| Line 62: | Line 66: | ||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Clay loam</td> | <td>Clay loam</td> | ||
| + | <td>D</td> | ||
<td>0.46</td> | <td>0.46</td> | ||
<td>0.32</td> | <td>0.32</td> | ||
| Line 71: | Line 75: | ||
<td>0.17</td> | <td>0.17</td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Silty clay loam</td> | <td>Silty clay loam</td> | ||
| + | <td>D</td> | ||
<td>0.47 to 0.51</td> | <td>0.47 to 0.51</td> | ||
<td>0.30 to 0.37</td> | <td>0.30 to 0.37</td> | ||
| Line 80: | Line 84: | ||
<td>0.14</td> | <td>0.14</td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Sandy clay</td> | <td>Sandy clay</td> | ||
| + | <td>D</td> | ||
<td>0.43</td> | <td>0.43</td> | ||
<td></td> | <td></td> | ||
| Line 89: | Line 93: | ||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Silty clay</td> | <td>Silty clay</td> | ||
| + | <td>D</td> | ||
<td>0.47</td> | <td>0.47</td> | ||
<td></td> | <td></td> | ||
| Line 98: | Line 102: | ||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>Clay</td> | <td>Clay</td> | ||
| + | <td>D</td> | ||
<td>0.47</td> | <td>0.47</td> | ||
<td>0.32</td> | <td>0.32</td> | ||
Revision as of 21:06, 25 November 2015
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 | 0.47 | B (ML or OL) | 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
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
