Aerial Information Systems under contract to CA Dept. of Fish and Game 20110607 vector digital data https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/500_599/ds566.zip https://www.wildlife.ca.gov/Data/BIOS The California Department of Fish and Game (CDFG) worked collaboratively with the California Native Plant Society (CNPS) and Aerial Information Systems (AIS) to produce a fine-scale vegetation map of the northern Sierra Nevada Foothills region, here defined by the two northern subsections of the USDA's Sierra Nevada Foothills Section (Miles and Goudey 1997). This includes 2.6 million acres of land, with approximately 15 percent under public ownership and 85 percent under private ownership. Vegetation sampling by means of the CNPS Relevé and Rapid Assessment Protocols was used to obtain a total of 710 Relevés and 1691 Rapid Assessments, which were used to develop a quantitative classification based on cluster and indicator species analyses. The resulting classification describes vegetation types according to the National Vegetation Classification System; and was used as a basis for creating a map classification generally at the alliance level, where natural vegetation stands were discernable to that level using 1-meter aerial imagery acquired as part of the National Agricultural Imagery Program (NAIP) in 2005 and 2009. The vegetation map includes 67 map units, of which 54 are natural vegetation map units at the floristic alliance level or higher (group) level and 13 are non-vegetation land use mapping units. The final products will assist agencies and other interested organizations in fire modeling, resource protection, and restoration efforts. It will also be used in land and vegetation change analyses where older information exists and serves as a basis for future monitoring effors The study area contains or abuts two previous projects that were mapped for CNPS. The Lassen Foothills project, conducted in 2007-08, is contained in Module 1. The Tuolumne Table Mountain project, conducted in 2003, is adjacent to Modules 3 and 4. An attempt was made to edgematch lines and equivalent vegetation types across the project boundaries. The Lassen Foothills project (approx. 100,000 acre area): The Lassen Foothills project was mapped using a slightly different mapping classification and criteria for vegetation type and cover density. If the estimated covers did not match, then the polygons were assessed by a qualified photo interpreter to determine if they should actually be merged. An example: If only a small portion of a vegetation polygon was within the boundary of one of the map projects, then the cover estimates might not have been accurate. The whole polygon was reassessed as one unit. If the line work for the edge-matched polygons corresponded and obviously should be one polygon (i.e. the same vegetation and vegetation cover) and yet the map unit attributes were conflicting for the edge polygons, then the polygons were merged and a qualified photo interpreter reassessed and updated the attributes for the entire polygon. If an edge polygon from either project contained an inclusion that was below the minimum mapping unit and was therefore not delineated, but the edge matched polygon from the other map recognized that inclusion as a separate polygon (and together they met the minimum mapping unit), then the inclusion was split from the original polygon and merged with the edge polygon with the correct attributes. If the edge matched polygons were mapped to a different level in the hierarchy, a qualified photo interpreter determined if the polygons should remain separate, be merged at the higher lever, or merged at the finer level of the hierarchy. Few changes were made to the original Lassen Foothills database. These changes include recoding any generic riparian Lassen vegetation types of Sonoran Riparian Broadleaf Deciduous Woodlands and Madrean Warm-temperate Riparian Wash Scrub to the alliance level. In addition, height and size were also systematically coded to the polygons and adjustments to the assigned code were made through photo interpreted review of each polygon. Tuolumne Table Mountain (approx. 4,000 acre area): The Table Mountain project was incorporated into the NSNF project by correlating and converting the Table Mountain vegetation types to the NSNF vegetation type criteria and codes. The Table Mountain project therefore was recoded for conifer, hardwood, shrub, and herbaceous density, and coded for disturbance, exotics, height, size, and land use. The polygon boundaries across the study area were edgematched and the study area boundary between the two projects dissolved once complete. A complete report is available at: http://www.nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=31346 20080101 20110101 ground condition Complete None planned -122.243793 -119.895351 40.722373 37.057372 None vegetation ISO 19115 Topic Category biota ImageryBaseMapsEarthCover environment None California Sierra Nevada None License: This work is licensed under Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). Using the citation standards recommended for BIOS datasets (https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS) satisfies the attribution requirements of this license.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. CA Dept. of Fish and Game Vegetation Classification and Mapping Program Diana Hickson 916/327-5956 dhickson@dfg.ca.gov CA Dept. of Fish and Game Vegetation Classification and Mapping Program VegCAMP (Vegetation Classification and Mapping Program) Vegetation Classification and Mapping Program Lead mailing and physical

1700 9th Street, 4th Floor

Sacramento CA 95811 (916) 324-9765 VegCAMP@wildlife.ca.gov California Department of Fish and Wildlife VegCAMP (Vegetation Classification and Mapping Program) Vegetation Classification and Mapping Program mailing and physical

1700 9th Street, 4th Floor

Sacramento CA 95811 (916) 324-9765 VegCAMP@wildlife.ca.gov Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 From fall 2008 to fall 2010, around 60 different alliances and higher level map units were selected for field AA of the map. In all, 1,295 AA field surveys were collected to verify the map. Of these, 1,215 were included in the analysis, while 80 were removed because of incomplete information or significant change in the region/polygon. Despite every attempt to sample adequate numbers of all mapped types, 20 different map units had a sample size of n<5, resulting in approximately 67% of all map types with reportable results. For the assessed map units, the overall users' (field surveyors) accuracy averaged 85.1% and producers' (photo interpreters) accuracy averaged 80.2%. The broad distribution of these AA surveys and resulting accuracy are indications of the final map's validity. Since the preferred accuracy for fine-scale vegetation mapping products is 80%, the map met or exceeded these expectations in most cases. Those vegetation map units that did not meet the 80% expectation were further reviewed by AIS and additional changes were made to improve the final map product. Additionally, 100,000 acres were already mapped with around 275 AA field surveys collected for the Lassen Foothills area (Buck et al. 2009); thus, the map for this area was edge-matched with the surrounding northern foothills boundary to create one seamless map. See the following report for further description: Northern Sierra Nevada Foothills vegetation project: vegetation mapping report. (https://nrmsecure.dfg.ca.gov/FileHandler.ashx?DocumentID=31346&inline=1) NATIONAL AGRICULTURE IMAGERY PROGRAM, Farm Services Agency, USDA http://www.fsa.usda.gov/FSA/apfoapp?area=home&subject=prog&topic=nai 0 None summer 2005 summer 2009 ground condition 2005 and 2009 NAIP imagery base imagery for vegetation delineations Edited original metadata (updated access constraints, supplemental information and other misc. edits). 20120214 California Department of Fish and Game Sophie Klenner bios@dfg.ca.gov Vector GT-polygon composed of chains 150078 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.0001 0.0001 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds566 Vegetation - Northern Sierra Nevada Foothills [ds566] OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. PI The code given to the alliance, group, macrogroup or mapping unit that was delineated. The vegetation of the area was classified to alliances and assocation levels, but sometimes coarser determinations were needed for photo interpretation. DensityConifer 0-98 total percentage of polygon covered by conifers; a value of 99 means the cover was uninterpretable due to landuse or overstory DensityHardwood 0-98 total percentage of polygon covered by hardwoods; a value of 99 means the cover was uninterpretable due to landuse or overstory DensityShrub 0-98 total percentage of polygon covered by shrubs; a value of 99 means the cover was uninterpretable due to landuse or overstory DensityHerbaceous the cover class represent a range of cover of herbaceous plants 0 Little or no cover 1 <20% cover 2 20-40% cover 3 >40% cover 9 Not applicable/Not evaluated Disturbance how much of the polygon was covered by some sort of disturbance 0 No Observable Disturbance: <5% of polygon affected 1 Minimal Disturbance: 5-25% of polygon affected. Polygons adjacent to major disturbances are also 2 Moderate Disturbance: 25-50% of polygon affected. 3 High Disturbance: >50% of polygon affected 4 Urban Disturbance: Polygon is built-up and contains associated structures 5 Agriculture Disturbance: Polygon is under intensive agricultural use. 9 Not applicable Exotic how much of the polygon was influenced by invasive exotics 0 No Observable Invasive Plant Component: <5% of polygon affected with invasive plants. 1 Low Invasive Plant Content: 5-25% of polygon affected with invasive plants. 2 Moderate Invasive Plant Content: 25-50% of polygon affected with invasive plants. 3 High Invasive Plant Content: >50% of polygon affected with invasive plants. 9 Not applicable Comment LandUse a code for land use types 0 Not evaluated 1000 Urban-Built-up 2000 Agriculture PIPO presence or absence of ponderosa pine 0 No observable PiPo 1 PiPo present 9 Not applicable ModalSize Code for plant diameter. 1 <1" 2 1-6" 3 6-11" 4 11-24" 5 >24" 6 >60% cover ModalOverstoryHeight Code for vegetation height. 1 < 0.5 meter 2 0.5-1 meters 3 1-2 meters 4 2-5 meters 5 5-10 meters 6 10-15 meters 7 15-20 meters 8 20-35 meters 9 35-50 meters 10 >50 meters ModuleName Name assigned to one of the four modules in which the study area was divided. Acres Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. MAPUNIT the name of the alliance, group, macrogroup or mapping unit that was delineated. NVCS_NAME the standardized name of the vegetation description used in the National Vegetation Classification System NVCS_LEVEL The level of the National Vegetation Classification System Hierarchy that the vegetation type corresponds to http://biology.usgs.gov/npsveg/nvcs.html NVCS_MG The standardized name for the macrogroup within the National Vegetation Classification System. http://biology.usgs.gov/npsveg/nvcs.html NVCS_G The standardized name for the group within the National Vegetation Classification System. http://biology.usgs.gov/npsveg/nvcs.html CWHR a cross walk to the California Wildlife Habitat Relationships system http://www.dfg.ca.gov/biogeodata/cwhr/ CALVEG a crosswalk to the CalVeg vegetation system http://www.fs.fed.us/r5/rsl/projects/frdb/layers/ev_mid.html G_RANK The global rarity rank of the plant community mapped (only for alliances and associations). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance S_RANK The state rarity rank of the plant community mapped (only for alliances and associations). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance CACODE California Natural Community Codes - unique code assigned to alliances and associations DFG Vegetation Classification and Mapping Program Diana Hickson Senior Botanist 916/327-5956 dhickson@dfg.ca.gov See access and use constraints information. none 20220324 CA Dept. of Fish and Game, Biogeographic Data Branch Rosie Yacoub mailing and physical

1807 13th Street, Suite 202

Sacramento California 95811 916-322-1990 ryacoub@dfg.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time