Resource Management

Explanatory Notes

Threat of Deforested Conditions in CA National Forests

| Overview | Deforested Condition Trends | Reforestation Trends |
| Glossary | Methods | Grouping Logic | Veg Maps |

Selected Fires: Explanatory Notes | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |


Each table is formatted the same, with the intent to provide a consistent amount of detail about the selected fires we analyzed and each fire independently. Vegetation types are tree species groupings (example: mixed conifer type). We report on different groupings because they have different ecological, economic, or social values of interest. We make a distinction between areas of the forest where restoration activities (treatments) are permitted vs. areas where treatments are not permitted. Wilderness and Wild and Scenic Rivers make up most of the area where treatments are not permitted. Forestland is land that grows trees. You'll notice shrubland and other non-forestland is separated out. We've also separated out land that is not national forest (other ownership). Finally, we report separately for steep areas (> 30 % slope) and flat areas because the costs of restoration work are higher on steep ground and there are limits to the kinds of machines that can be used.

The maps convey the pattern of deforested conditions which has important implications for wildlife habitat and the potential for the forest to recover naturally. Large openings make it difficult for some species to move across a landscape. Tree seeds get assistance from wind and wildlife, but do not generally travel far from parent trees, making it difficult to reforest large openings naturally.

Example of a table summarizing vegetation conditions by acres, after a wildfire.





https://www.fs.usda.gov/detailfull/r5/landmanagement/resourcemanagement/?cid=fsbdev3_047155&width=full