Difference between revisions of "Bare soil cover types and percent reduction of soil loss"
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| − | + | <font size=3>'''Bare soil cover types and percent reduction of soil loss. The [http://www.omafra.gov.on.ca/english/engineer/facts/12-051.htm C factor], used to determine the relative effectiveness of soil and crop management systems in terms of preventing soil loss, is a ratio comparing the soil loss from land under a specific crop and management system to the corresponding loss from continuously fallow and tilled land. Source: Northwest California Resource Conservation and Development District 2016.'''</font size><br> | |
| − | + | Link to this [[Bare soil cover types and percent reduction of soil loss |table]] | |
| − | Link to this [[Bare soil cover types and percent reduction of soil loss |table]] | ||
<table class="sortable"> | <table class="sortable"> | ||
| Line 9: | Line 8: | ||
<th>Percent reduction of soil loss</th> | <th>Percent reduction of soil loss</th> | ||
</tr> | </tr> | ||
| − | |||
<tr> | <tr> | ||
<td>None (fallow ground)</td> | <td>None (fallow ground)</td> | ||
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<td>0</td> | <td>0</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Native vegetation (undisturbed)</td> | <td>Native vegetation (undisturbed)</td> | ||
| Line 23: | Line 18: | ||
<td>99</td> | <td>99</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Temporary tyegrass, 99% (perennial)</td> | <td>Temporary tyegrass, 99% (perennial)</td> | ||
| Line 31: | Line 23: | ||
<td>95</td> | <td>95</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Temporary ryegrass, 90% (annuals)</td> | <td>Temporary ryegrass, 90% (annuals)</td> | ||
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<td>90</td> | <td>90</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Permanent seedings (90%)</td> | <td>Permanent seedings (90%)</td> | ||
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<td>99</td> | <td>99</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Sod (laid immediately)</td> | <td>Sod (laid immediately)</td> | ||
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<td>99</td> | <td>99</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
<tr> | <tr> | ||
| − | < | + | <td colspan=3>'''Mulching (for slopes 2:1 or less)'''</td> |
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Hay (0.5 tons/acre)</td> | <td>Hay (0.5 tons/acre)</td> | ||
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<td>75</td> | <td>75</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Hay (1.0 tons/acre)</td> | <td>Hay (1.0 tons/acre)</td> | ||
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<td>87</td> | <td>87</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Hay (1.5 tons/acre)</td> | <td>Hay (1.5 tons/acre)</td> | ||
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<td>93</td> | <td>93</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Hay (2.0 tons/acre)</td> | <td>Hay (2.0 tons/acre)</td> | ||
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<td>98</td> | <td>98</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Wood chips (6 tons/acre)</td> | <td>Wood chips (6 tons/acre)</td> | ||
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<td>94</td> | <td>94</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Wood cellulose (1.75 tons per acre)X</td> | <td>Wood cellulose (1.75 tons per acre)X</td> | ||
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<td>90</td> | <td>90</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
| − | < | + | <td colspan=3>'''Other'''</td> |
</tr> | </tr> | ||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Competent gravel layer</td> | <td>Competent gravel layer</td> | ||
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<td>95</td> | <td>95</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
<tr> | <tr> | ||
<td>Rolled erosion control fabrics</td> | <td>Rolled erosion control fabrics</td> | ||
| − | <td>(for slope greater than 2:1</td> | + | <td>(for slope greater than 2:1)</td> |
<td>Variable C value by type</td> | <td>Variable C value by type</td> | ||
</tr> | </tr> | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
</table> | </table> | ||
| − | + | <noinclude> | |
| − | + | [[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Erosion prevention]] | |
| − | + | </noinclude> | |
| − | |||
| − | [[ | ||
Latest revision as of 14:54, 24 July 2022
Bare soil cover types and percent reduction of soil loss. The C factor, used to determine the relative effectiveness of soil and crop management systems in terms of preventing soil loss, is a ratio comparing the soil loss from land under a specific crop and management system to the corresponding loss from continuously fallow and tilled land. Source: Northwest California Resource Conservation and Development District 2016.
Link to this table
| Vegetative Cover | C factor | Percent reduction of soil loss |
|---|---|---|
| None (fallow ground) | 1.0 | 0 |
| Native vegetation (undisturbed) | 0.01 | 99 |
| Temporary tyegrass, 99% (perennial) | 0.05 | 95 |
| Temporary ryegrass, 90% (annuals) | 0.1 | 90 |
| Permanent seedings (90%) | 0.01 | 99 |
| Sod (laid immediately) | 0.01 | 99 |
| Mulching (for slopes 2:1 or less) | ||
| Hay (0.5 tons/acre) | 0.25 | 75 |
| Hay (1.0 tons/acre) | 0.13 | 87 |
| Hay (1.5 tons/acre) | 0.07 | 93 |
| Hay (2.0 tons/acre) | 0.02 | 98 |
| Wood chips (6 tons/acre) | 0.06 | 94 |
| Wood cellulose (1.75 tons per acre)X | 0.10 | 90 |
| Other | ||
| Competent gravel layer | 0.05 | 95 |
| Rolled erosion control fabrics | (for slope greater than 2:1) | Variable C value by type |
This page was last edited on 24 July 2022, at 14:54.