Priority_Hardwood_Forests (Map Service)
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Current Version: 10.81
Service Description: This layer was developed by Sonoma County Ag + Open Space as a component of the Vital Lands Initiative. For additional information please contact Alex Young, Conservation GIS Coordinator
PRIORITY HARDWOOD FOREST
Vegetation rarity was used to as the criteria to develop the priority hardwood forest layer. Vegetation rarity was evaluated using global and state
conservation status rankings from the Survey of California
Vegetation/NatureServe’s Heritage Program methodology, as well as local rarity.
For a more detailed description of conservation status ranks, please see the
Sonoma County Vegetation Descriptions prepared by CDFW VegCAMP and CNPS for the
Sonoma Veg Map Program: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=115808&inline=1
A breakdown of vegetation classes by rarity priority class
is described below:
High Priority:
Imperiled (state rarity rank of 2) or locally rare (state rarity rank of 3 or 4
with <1% cover)
- Bigleaf maple forest (Acer macrophyllum Alliance)
- California buckeye groves (Aesculus californica Alliance)
- Fremont cottonwood forest (Populus fremontii Alliance)
- Interior live oak woodland (Quercus wislizeni (tree) Alliance)
- Valley oak woodland (Quercus lobata Alliance)
Lower Priority:
Apparently secure (state rank 4 or 5) or locally common (>5% cover)
- California bay woodland (Umbellularia californica Alliance)
- Coast live oak woodland (Quercus agrifolia Alliance)
- Oak woodland (Quercus (agrifolia, douglasii, garryana, kelloggii, lobata, wislizenii)
Alliance)
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Description: This layer was developed by Sonoma County Ag + Open Space as a component of the Vital Lands Initiative. For additional information please contact Alex Young, Conservation GIS Coordinator
PRIORITY HARDWOOD FOREST
Vegetation rarity was used to as the criteria to develop the priority hardwood forest layer. Vegetation rarity was evaluated using global and state
conservation status rankings from the Survey of California
Vegetation/NatureServe’s Heritage Program methodology, as well as local rarity.
For a more detailed description of conservation status ranks, please see the
Sonoma County Vegetation Descriptions prepared by CDFW VegCAMP and CNPS for the
Sonoma Veg Map Program: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=115808&inline=1
A breakdown of vegetation classes by rarity priority class
is described below:
High Priority:
Imperiled (state rarity rank of 2) or locally rare (state rarity rank of 3 or 4
with <1% cover)
- Bigleaf maple forest (Acer macrophyllum Alliance)
- California buckeye groves (Aesculus californica Alliance)
- Fremont cottonwood forest (Populus fremontii Alliance)
- Interior live oak woodland (Quercus wislizeni (tree) Alliance)
- Valley oak woodland (Quercus lobata Alliance)
Lower Priority:
Apparently secure (state rank 4 or 5) or locally common (>5% cover)
- California bay woodland (Umbellularia californica Alliance)
- Coast live oak woodland (Quercus agrifolia Alliance)
- Oak woodland (Quercus (agrifolia, douglasii, garryana, kelloggii, lobata, wislizenii)
Alliance)
Copyright Text:
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Document Info: - Title: Priority Hardwood Forests
- Author: SonomaOpenSpace
- Comments:
- Subject: VLI Priority Hardwood Forests
- Category:
- Keywords: VLI