Jason Schwenkler, Geographic Information Center 20230518 vector digital data https://www.wildlife.ca.gov/Data/BIOS https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/3000_3099/ds3089.zip Under contract to the California Department of Fish and Wildlife (CDFW), the North State Planning and Development Collective (NSPDC) created a fine-scale vegetation map of portions of the Sierra Nevada mountains around Lake Tahoe and the adjacent Modoc Plateau. CDFW’s Vegetation Classification and Mapping Program (VegCAMP) provided in-kind service to allocate and score the Accuracy Assessment. The mapping study area consists of approximately 1.6 million acres, covering portions of Sierra, Plumas, Placer, Nevada, Modoc, and Lassen counties. Work was performed on the project between 2019 and 2023. The purposes of the project include assisting land managers in decision-making, fire and fuel management, protecting endangered species and habitats, protecting cultural and natural resources, habitat connectivity, habitat restoration, conservation prioritization, and informed development. NSPDC staff conducted 434 Rapid Assessment and Releve surveys across the mapping area in the summer of 2019 to gather vegetation data to be used in the development of a vegetation classification for the project area.VegCAMP developed the floristic vegetation classification used for the project. The floristic classification follows protocols compliant with the Federal Geographic Data Committee (FGDC) and National Vegetation Classification Standards (NVCS).The vegetation map was produced applying heads-up digitizing techniques using a 2018 base of one-meter National Agricultural Imagery Program (NAIP) imagery (true-color and color infrared), in conjunction with ancillary data and imagery sources. Map polygons are assessed for Vegetation Type, Percent Cover, Exotics, Development Disturbance, and other attributes. The minimum mapping unit (MMU) is 1 acre; exceptions are made for wetlands and riparian types, which were mapped to a 1/4 acre. Breaks on overstory cover were done at 3 acres.Field reconnaissance and the Accuracy Assessment enhanced the overall map quality. There were a total of 107 mapping classes. The overall Fuzzy Accuracy Assessment rating for the final vegetation map,at the Alliance, Group, and Macrogroup levels, is 81.7% percent. Under contract to the California Department of Fish and Wildlife (CDFW), the North State Planning and Development Collective created a fine-scale vegetation map from the western edge of Lake Tahoe north to Honey Lake and from the crest of the Sierra Nevada mountain range east to the Nevada border in northern California. The mapping study area consists of approximately 1.6 million acres, covering portions of Sierra, Plumas, Placer, Nevada, Modoc, and Lassen counties. The minimum mapping unit (MMU) is 1 acre; exceptions are made for wetlands and riparian types, which were mapped to a 1/4 acre. The floristic classification follows protocols compliant with the Federal Geographic Data Committee (FGDC) and National Vegetation Classification Standards (NVCS). Rarity Ranking: Rarity ranks for various types in this map have been updated utilizing the NatureServe Conservation Status Assessments Rank Calculator Version 3.186, and are current as of July 5, 2022. Rarity ranks are subject to change due to changing threats and trends and as ranking methodologies are further refined. Please check CDFW’s Natural Communities page for the most up-to-date rarity ranks (https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities). References: North State Planning and Development Collective, California State University, Chico. Vegetation Sampling and Mapping – Doyle-Loyalton Study Area Report. California Department of Fish and Wildlife Vegetation Classification and Mapping Program; 3/2023. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 Ratchford, J., R. Boul, T. Keeler-Wolf, J. Evens. 2023. Vegetation Classification for the Doyle-Loyalton Deer Herd Ranges in the Sierra Nevada and Northwestern Basin and Range Ecoregions. Vegetation Classification and Mapping Program, California Department of Fish and Wildlife, Sacramento, CA. Available from: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211213 Vegetation Classification and Mapping Program, CA Dept. of Fish and Wildlife. Doyle-Loyalton Vegetation Accuracy Assessment Confusion Matrix. California Department of Fish and Wildlife Vegetation Classification and Mapping Program; 3/2023. [Cited 2023 March 30]. Available from: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211258 Complete Unknown -120.815192 -119.997790 41.446965 39.039430 None Sierra Nevada, Great Basin, California Department of Fish and Wildlife, National Vegetation Classification Standard, NVCS, Manual of California Vegetation ISO 19115 Topic Categories biota environment imageryBaseMapsEarthCover None California None CDFW’s VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.govor contact any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMPLicense: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. California Department of Fish and Wildlife VegCAMP Program Lead VegCAMP@wildlife.ca.gov California Department of Fish and Wildlife Rosie Yacoub GIS Specialist Rosalie.Yacoub@wildlife.ca.gov California Department of Fish and Wildlife VegCAMP@wildlife.ca.gov Geographic Information Center Jason Schwenkler jschwenkler@csuchico.edu California Department of Fish and Wildlife VegCAMP Program Lead VegCAMP@wildlife.ca.gov This map was created by the North State Planning and Development Collective at California State University, Chico. It was prepared for publication in BIOS by the California Department of Fish and Wildlife’s (CDFW) Vegetation Classification and Mapping Program (VegCAMP). Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 Vector GT-polygon composed of chains 80592 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 ds3089 OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. Esri Coordinates defining the features. MCVName Names will be the same as ones used in the Manual of California Vegetation and California Natural Community List (https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities). These standardized names correspond as much as possible to the National Vegetation Classification System (see http://usnvc.org/) or are submitted to the regional editors for induction.Classes for human land use or otherwise unvegetated land were drawn from the California Wildlife Habitat Relationship. https://vegetation.cnps.org/ MCVLevel The standardized level of the vegetation description in the Manual of California Vegetation corresponding with levels of the National Vegetation Classification System http://usnvc.org MapCode The code for a vegetation association, alliance, group, unvegetated type, or land use for polygons that are not natural vegetation. MapClass The finest level of vegetation type mapped (alliance, association, group or macrogroup); or descriptions for polygons that are not natural vegetation per the mapping classification, including land use and natural barrens or water features. Map classes are described in the mapping report. This name matches the VegName field from the Report. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211213 HT_CODE Average height of the dominant vegetation within the polygon, in meters. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 <1/2 m 2 1/2-1 m 3 1-2 m 4 2-5 m 5 5-10 m 6 10-15 m 7 15-20 m 8 20-35 m 9 35-50 m SIZE_CATEG Average diameter-at-breast-height of tree-dominated vegetation (not used for shrub or herbaceous mapping types). https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 Seedlings (<1") 2 Saplings (1-6") 3 Pole (6-11") 4 Small (11-24") 5 Medium-Large (>24") PER_HARDWO The total cover of hardwood tree species present in the stand. “0.2” represents hardwood presence at less than 1%. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 PER_CONIFE The total cover of conifer tree species present in the stand. “0.2” represents conifer presence at less than 1%. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 PER_TREE The sum of % hardwood cover and % conifer cover. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 PER_SHRUB The total cover of all shrub species present. "0.2" represents shrub cover presence at less than 1%. This will be set to 999 if the overstory canopy is greater than 40%, because when tree canopy exceeds 40% it is inaccurate to represent shrub cover using photointerpretation. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 HERB_CODE The cover of herbaceous species present in a stand, broken into defined classes. This will be > 40% Woody if the overstory trees and shrubs exceed 40%, because when tree canopy exceeds 40% it is inaccurate to represent shrub cover using photointerpretation. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 <2% 2 2-9% 3 10-39% 99 >40% Woody PER_TOTAL The total combined cover of % tree + % shrub + average herbaceous cover by class https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 ISOLATED_T A “Y” indicates a total tree cover of >0% and <5%. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 JUOC_EXPAN The presence and cover of young junipers with less than 6 inches diameter at breast height https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 None visible 2 0.2-1% 3 1-4% 4 4-10% Roadedness Roadedness Disturbance is defined as the level of impact in a polygon by paved and unpaved roads, off highway vehicle (OHV) trails, railroads, berms, and covered aqueducts. Impact is defined by the proportion of any polygon that is contiguously without these features. The table is adapted from VegCAMP (2013). Roads following polygon boundaries were included in the assessment. Each existing vegetation polygon was assigned a Roadedness Disturbance class. Polygons were not created or split because of differences in roadedness. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 None visible 2 Low (>66% roadless) 3 Moderate (33-66% roadless) 4 High (<33% roadless) Clearing The presence and relative impact of noticeable clearing, scraping, or other obvious anthropogenic disturbance (other than buildings), broken apart into categories. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 None visible 2 Low (<33% of polygon affected) 3 Moderate (33-66% of polygon affected) 4 High (>66% of polygon affected) RESTORATION Recorded when it was obvious to the photo-interpreter that restoration had occurred. The most obvious categories utilized were for juniper removal projects and thinning of pine and juniper. Juniper removal projects are implemented primarily to restore groundwater to areas where juniper has expanded due to fire suppression. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 Juniper occidentalis removal 2 None obvious 3 Other (see comments) 4 Shrub/tree planting 5 Thinning (Pine, Juniper occidentalis) DEVELOPMENT Recorded when it was obvious to the photo-interpreter that anthropogenic development was present in a polygon https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 None visible 2 Low (<2%, low density, scattered) 3 Moderate (2-5%, multiple examples) 4 High (>5%, multiple examples, distributed throughout) INVASIVE_P The percent of the polygon that is covered by invasive species, broken into classes. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 None visible 2 Visble patches, not significant (<33% relative cover) 3 Significant cover (33-66% relative cover) 4 Stand characterized by exotics (>66% relative cover) COMMENTS Any additional useful information https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 MethodID This attribute was used to indicate how the VegCode coding decision was reached for a polygon by identifying what type of field data (if any) was used to support the vegetation type assignment. For polygons that did not have any corresponding point data, the value of “photo interpretation” was assigned. The Method ID attribute facilitated the Accuracy Assessment sample allocation process, as polygons that had reliable field information for type assignment could be identified and omitted from the final allocation. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 1 Accuracy Assessment 2 Additonal Recon Information/Recon Doesn't Pertain to Whole Poly 3 Adjacent Stand Information or Photo 4 Older Plot Information 5 Other Information 6 Photo Interpretation 7 Rapid Assessment (current) 8 Releve Ortho_NAIP_Year The year the base imagery was flown. For this mapping effort, all imagery is from 2018. Finest_Level_Mapping_Unit When applicable, the most detailed level of a mapping type that is defined in the vegetation key, but not considered 'mappable' in the vegetation hierarchy. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=211201 UID Unique identifier for each polygon. Calculated at the end of project CalVegType A crosswalk to the Classification and Assessment with Landsat of Visible Ecological Groupings (CalVeg) vegetation system (USDA Forest Service). Note that there may be a one-to-many relationship between CalVeg and NVCS, but the best crosswalk for this area is chosen. https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192 CalVegCode The code used for the CalVeg type https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192 CWHRType A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. The best fit for this area has been chosen. https://wildlife.ca.gov/Data/CWHR/Wildlife-Habitats CWHRCode The code for the CWHR type. https://wildlife.ca.gov/Data/CWHR/Wildlife-Habitats GlobalRank The global rarity ranking of the plant community mapped (ranks are available for all California alliances, and some associations). Ranks are based on a set of criteria including the rarity of the community (extent and occupancy), the threats that the community is subject to, and any known trends in the quality, size, or quantity of stands within the state. Ranks go from G1 which is critically imperiled/has very few occurrences to G5, when a community is demonstrably secure due to broad distribution with area not subject to threats. Ranks G1-G3 are considered sensitive. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Ranks are current as of the publication date or update date. http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities StateRank The state rarity ranking of the plant community mapped (ranks are available for all California alliances, and some associations). Ranks are based on a set of criteria including the rarity of the community (extent and occupancy), the threats that the community is subject to, and any known trends in the quality, size, or quantity of stands within the state. Ranks go from S1 which is critically imperiled/has very few occurrences to S5, when a community is demonstrably secure due to security globally. Ranks S1-S3 are considered sensitive. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Ranks are current as of the publication date or update date. http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Sensitive Is the vegetation type considered sensitive? Y= yes, sensitive natural community. Alliances and associations with global ranks of G1-G3 state ranks of S1-S3 are considered sensitive natural communities. Additionally if an association has not gone through the ranking process, but is estimated to be sensitive Y will be shown without a G or S rank. Ranks are current as of the publication date or update date. https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities/Background CaCode California Natural Community Codes - unique code assigned to alliances and associations. https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities MCVAlliance The standardized name for the alliance within the NVCS as interpreted in the Manual of California Vegetation. https://vegetation.cnps.org/ MCVGroup The standardized name for the group within the National Vegetation Classification System, with some potential exceptions within the Manual of California Vegetation Database. https://vegetation.cnps.org/ MCVMacrogroup The standardized name for the macrogroup within the National Vegetation Classification System, with some potential exceptions within the Manual of California Vegetation Database. https://vegetation.cnps.org/ CommunityLink The link to the alliance in the Manual of California Vegetation Online. https://vegetation.cnps.org/ Acres GIS Calculated acres based on calculation done in California (Teale) Albers, NAD83 Hectacres GIS Calculated acres based on calculation done in California (Teale) Albers, NAD83 SecondCaCode This attribute captures classification updates where a type from the original map was split in the MCV classification, and both sides of the split may be in the mapping area. It will be empty for most records, and potentially empty for all records if the dataset is relatively new. SecondSensitive This attribute captures classification updates where a type from the original map was split in the MCV classification, and both sides of the split may be in the mapping area. It will be empty for most records, and potentially empty for all records if the dataset is relatively new. Y in this field indicates the secondary type is considered sensitive. 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. 20230518 California Department of Fish and Wildlife VegCAMP Program Lead VegCAMP@wildlife.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time CDFW’s VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.govor call any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMPLicense: 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.