Jason Schwenkler, North State Planning and Development Center, Director 20211216 vector digital data https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2800_2899/ds2891.zip https://www.wildlife.ca.gov/Data/BIOS The Feather River was mapped using 2018 National Agricalutural Inventory Program (NAIP) imagery, and using a classification developed by the California Native Plant Society (CNPS) based in the National Vegetation Classification System (NVCS). A report describing mapping methodology for a similar project can be found here: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=184992.For more information about California's classification, see https://vegetation.cnps.org/.Changes in a remap effort can occur due to several factors, some due to physical change and some due to non-physical change. Examples of factors that represent physical change are: stand maturation or decadence, fire, erosion, deposition, anthropogenic disturbances such as scraping/clearing, urban development, agricultural development, and restoration. Non-physical changes include: improvement in imagery quality, incorrect original mapping, imagery shifts, improvement of older linework, and change in level mapped (classification). Imagery quality continues to improve with time, which allows the photointerpreter to better determine which species are present and in what amounts to determine its best classification. A photointerpreter could also disagree with the previous mapper’s decisions and may change the classification in the remapping effort. A more subtle map change, which does not affect the acreages significantly, is when the photointerpreter improves old linework to make it better fit the classification type visually. Also, when the NAIP imagery is ortho-rectified, in some years it does not perfectly align with the year it is being compared to and linework needs to be shifted/redrawn. Lastly, a photointerpreter may have remapped an Alliance at the Group level due to lack of confidence at the Alliance level, and vice versa the interpreter may have mapped an Alliance that was previously mapped at Group level due to better confidence at that level. All of these factors should be taken into consideration when using and comparing these data to previous efforts. The Central Valley Riparian Mapping developed by the Geographic Information Center (GIC) is used as a planning tool for the Department of Water Resources (DWR) and stakeholders in planning regional flood management projects and plans associated with the Central Valley Flood Protection Plan (CVFPP). These data are used to assess current areas of vegetation and habitat within the flood protection system, set measurable objectives within CVFPP Conservation Planning areas for the enhancement of specific types of habitat, and create initial assessments of potential impacts of proposed multi-benefit projects associated with the State Plan of Flood Control. This dataset was developed as part of the California Department of Water Resource's Central Valley Flood Protection Program to facilitate regional planning and conservation and enhancement of biological resources by the Department of Water Resources, project partners, and regional stakeholders. Rarity Ranking Rarity ranks for various types in this map have been updated utilizing the NatureServe Conservation Status Assessments Rank Calculator Version 3.186. 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 References: Buck-Diaz, J., S. Batiuk and J. Evens. 2012. Vegetation Alliances and Associations of the Great Valley Ecoregion, California. California Native Plant Society. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=64011 California Department of Fish and Wildlife (CDFW) and Geographical Information Center (GIC). 2013. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area, Final Report https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420 Kreb, Brian, Askim, Laura and Fintel, Erik. Vegetation: Central Valley Flood Protection Planning Area Update (2016). California Department of Water Resources; 12/1/2021. Available from: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=184992 Complete Unknown -121.694510 -121.519830 39.536506 38.776652 None Yuba, Sutter, Butte, environment, farming, Vegetation, California Wildlife Habitat Relationships, National Vegetation Classification Standard, inlandWaters, A Manual of California Vegetation, Mapping, biota, Habitat, imageryBaseMapsEarthCover, change detection ISO 19115 Topic Categories farming biota environment imageryBaseMapsEarthCover inlandWaters None Yuba, Sutter, Butte, California None Recognition that this dataset was created by Chico State Research Foundation - Geographical Information Center, for the Department of Water Resources. 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. North State Planning and Development Center Jason Schwenkler Director unknown

35 Main Street

Chico California 95928 Jason A Schwenkler <jschwenkler@csuchico.edu> California Department of Fish and Wildlife Rachelle Boul VegCAMP lead ecologist unknown

1700 9th Street, 4th Floor

Sacramento California 95811 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 Rachelle Boul VegCAMP lead ecologist unknown

1700 9th Street, 4th Floor

Sacramento California 95811 VegCAMP@wildlife.ca.gov Chico State Research Foundation - Geographical Information Center, for the Department of Water Resources and California Deparment of Fish and Game, Vegetation Mapping Program Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 Vector GT-polygon composed of chains 2081 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 ds2891 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://wildlife.ca.gov/Data/VegCAMP/Natural-Communities 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. CV_Group Full Group level name of mapping unit used. This is the groups as analyzed in the Vegetation Alliances and Associations of the Great Valley Ecoregion, California (Buck et al, 2012) https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=64011&inline HT_CODE The average height of the stand. This is a mean/modal value, or the average of the most commonly occurring species in the dominant strata of the group/alliance. Outliers were removed from the average. SIZE_CATEG Average tree diameters were estimated at breast height for each polygon and cassified as follows: <1", 1-6", 6-11", 11-24", >24" A Guide to Wildlife Habitats of California (USDA et. al. 1988). PER_HARDWO The absolute percentage of the polygon occupied by hardwood trees, does not include conifers. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) PER_CONIFE The absolute percentage of the polygon occupied by coniferous trees, does not include hardwoods. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) PER_TREE The sum of the hardwoods and conifers. Absolute percentage of space in a polygon occupied by trees.Tree: Is a one-stemmed woody plant that normally grows to be greater than 5 meters tall. In some cases trees may be multiple-stemmed following a fire or other disturbance, but size of mature plants is typically greater than 5 m and undisturbed individuals of these species are usually single stemmed. Tree stands must have at least 5% absolute cover of tree species to be determined a tree stand. If the tree canopy was estimated to be 40% or greater, the underlying vegetation was not evaluated due to a full overlying canopy. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) PER_SHRUB The absolute percentage of the polygon that is occupied by shrubs. A shrub is a woody plant that generally has two to several stems from base, giving it a broad crown and is usually below 5 m in height. Includes dwarf shrubs and low or short woody vines such as Vitis. In order for polygon to be called a shrub stand: Tree must be <5% absolute cover and shrubs must be >10% absolute cover. Cover-rule exceptions were made for shrubs that never get very dense. These shrub types such as Heterotheca oregona can go down to 3% cover and still be called a shrub Alliance. Common environments for these exceptions were gravel bars and alkali flats. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) HERB_CODE The absolute percentage of the polygon that is occupied by grasses. They were classified into one of six categories. <2%, 2-9%, 10-39%, 40-59%, >60 or >40 woody when overstory layers are over 40 percent cover. PER_TOTAL Total cover is the sum of total tree, shrub and the mean of the herbaceous layers. Each layer takes into account the porosity of the canopy which results in lower numbers than one might perceive. A polygon with a value of 40 would look almost completly covered in vegetaion. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) ISOLATED_T Restoration is coded Y for Yes if any portion of the polygon was a part of a restoration project. Younger, more recent restorations were obvious to the photo interpreters where older restortations were more difficult to discern. This should not be used as a complete restortation layer. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) RESTORATIO Restoration is coded Y for Yes if any portion of the polygon was a part of a restoration project. Younger, more recent restorations were obvious to the photo interpreters where older restortations were more difficult to discern. This should not be used as a complete restortation layer. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) CLEARING_D The absolute percentage of clearing disturbaces, such as roads, trails, disking, or scraping, were estimated for each polygon and classified into one of four categories. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) INVASIVE_P Visually observable invasive species were recorded and classified into one of four categories. The target species were Rubus armeniacus, Arundo donax, and Tamrix spp. Fine-Scale Riparian Vegetation Mapping of the Central Valley Flood Protection Plan Area 2013 (https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=74420) Comments These are comments from the photo interpreter pertaining to the polygon. Source Geographical Information Center (GIC) 35 Main Street Chico CA 95928 Ortho_NAIP_Year Imagery used was 2018 National Agricultural Inventory Program Data. 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. The alliance is the 2nd lowest level of the National Vegetation Classification System (above association). https://vegetation.cnps.org/ MCVGroup The standardized name for the group within the NVCS as interpreted in the Manual of California Vegetation. The group is the 3rd lowest level of the National Vegetation Classification System (above alliance). https://vegetation.cnps.org/ MCVMacrogroup The standardized name for the macrogroup within the NVCS as interpreted in the Manual of California Vegetation. The macrogroup is the 4th lowest level of the National Vegetation Classification System (above alliance). 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 Hectares GIS Calculated hectares based on calculation done in California (Teale) Albers, NAD83 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. 20211217 North State Planning and Development Center Jason Schwenkler Director unknown

35 Main Street

Chico California 95928 Jason A Schwenkler <jschwenkler@csuchico.edu> FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time