Vegetation - Delta Vegetation and Land Use Update 2016 [ds2855]

File Geodatabase Feature Class

Open this dataset in BIOS
Download this dataset

Tags
Farming, Environment, Biota, Sacramento County, Yolo County, Delta, Solano County, Alameda County, Contra Costa County, California, Sacramento - San Joaquin Delta, San Joaquin County, Legal Delta, National Vegetation Classification Standard, A Manual of California Vegetation, California Wildlife Habitat Relationships, Vegetation, Habitat


Summary

For use in assessing existing vegetation and land use conditions in the Delta, to serve as a baseline for monitoring future change, and to analyze changes that have happened to the vegetation in the Delta since 2005, which is the year of the base imagery of the last mapping.

Description

Vegetation and land use are mapped for the 737,621 acres constituting the Legal Delta portion of the Sacramento and San Joaquin River Delta area. Vegetation mapping is to alliance level when possible, otherwise it is left at group level (based on the National Vegetation Classification Standard, see http://biology.usgs.gov/npsveg/nvcs.html); land use is mapped to Anderson Level 2 classification (see https://pubs.usgs.gov/pp/0964/report.pdf). The map classification is based on a vegetation classification derived from field data collected in summer and fall of 2005 produced by the Vegetation Classification and Mapping Program (VegCAMP) of the Department of Fish and Game. Membership rules for each alliance can be foud at http://vegetation.cnps.org/. 2016 National Agricultural Inventory Program (NAIP) one meter orthoimagery was the baseline imagery used. Google Earth imagery was used as supplemental imagery. Natural vegetation comprises approximately 17 percent of the Delta study area, 65 percent is agriculture and pasture, 10 percent is urban/other and 8 percent is open water.

Link to download report: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174866

Credits

Chico State Research Foundation-Geographical Information Center, for the Delta Stewardship Council and California Deparment of Fish and Game, Vegetation Mapping Program

Use limitations

Recognition that this dataset was created by Chico State Research Foundation-Geographical Information Center, for the Delta Stewardship Council and California Department of Fish and Game. We would also appreciate corrections to the map sent to VegCAMP. Contact VegCAMP Lead

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.

Extent

West -121.955328 East -121.195356
North 38.592858 South 37.616402

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource environment, biota, farming


* Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords Sacramento County, Yolo County, Delta, Solano County, Alameda County, Contra Costa County, California, Sacramento - San Joaquin Delta, San Joaquin County, Legal Delta

Theme keywords biota, farming, environment

Thesaurus
Title ISO 19115 Topic Categories




Theme keywords National Vegetation Classification Standard, A Manual of California Vegetation, California Wildlife Habitat Relationships, Vegetation, Habitat

Theme keywords Farming, Environment, Biota

Citation

Title Vegetation - Delta Vegetation and Land Use Update 2016 [ds2855]
Publication date 2019-12-1800:00:00


Presentation formats digital map
FGDC geospatial presentation format vector digital data


Citation Contacts

Responsible party
Organization's name Jason Schwenkler, Geographical Information Center, Director
Contact's role originator


Responsible party
Organization's name VegCAMP, California Dept. of Fish and Wildlife, Biogeographic Data Branch
Individual's name VegCAMP (Vegetation Classification and Mapping Program)
Contact's position Vegetation Classification and Mapping Program
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9765

Address
Type both
Delivery point 1700 9th Street, 4th Floor
City Sacramento
Administrative area California
Postal code 95811
Country US
e-mail address VegCAMP@wildlife.ca.gov



Resource Details

Dataset languages English(UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format


Status completed
Spatial representation type vector


Supplemental information
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 December 13th, 2019. Rarity ranks are subject to change due to changing threats and trends and as ranking methodologies are further refined. Please check CDFWs Natural Communities page for the most up-to-date rarity ranks (https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities). 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 Hickson, D., Keeler-Wolf, T. and Aerial Information Systems. Vegetation and Land Use Classification and Map of the Sacramento-San Joaquin River Delta. California Department of Fish and Game; 2/2007. [Cited 2019 December 17]. Available from: http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=18211 Kreb , Brian, Fintel, Erik, Askim, Laura and Scholl, Luke. Vegetation and Land Use Classification and Map Update of the Sacramento-San Joaquin River Delta. Geographical Information Center, California State University, Chico.; 11/2019. [Cited 2019 December 17]. Available from: http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174866 LandIQ . DATASET: Land Use - 2014 - Land IQ (ds2677). Published by the California Dept. of Water Resources. 5/2017. Metadata available: https://map.dfg.ca.gov/metadata/ds2677.html
* Processing environment Microsoft Windows 10 Version 10.0 (Build 19044) ; Esri ArcGIS 12.8.3.29751


Credits
Chico State Research Foundation-Geographical Information Center, for the Delta Stewardship Council and California Deparment of Fish and Game, Vegetation Mapping Program
ArcGIS item properties
* Name ds2855
* Location file://\\geodata.\bios\WorkArea\BIOSOnline\Refresh\TODOData\BIOSOnlineData.gdb
* Access protocol Local Area Network

Extents

Extent
Geographic extent
Bounding rectangle
West longitude -121.955328
East longitude -121.195356
South latitude 37.616402
North latitude 38.592858

Vertical extent
* Minimum value 0.000000
* Maximum value 0.000000


Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.955328
* East longitude -121.195356
* North latitude 38.592858
* South latitude 37.616402
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -170129.375000
* East longitude -105351.679600
* South latitude -42730.707100
* North latitude 64757.640600
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Jason Schwenkler
Organization's name Geographical Information Center
Contact's position Director
Contact's role point of contact


Contact information
Address
Type
Delivery point 35 Main Street
City Chico
Administrative area California
Postal code 95928
Country US
e-mail address Jason A Schwenkler <jschwenkler@csuchico.edu>



Point of contact
Organization's name VegCAMP, California Dept. of Fish and Wildlife, Biogeographic Data Branch
Individual's name VegCAMP (Vegetation Classification and Mapping Program)
Contact's position Vegetation Classification and Mapping Program
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9765

Address
Type both
Delivery point 1700 9th Street, 4th Floor
City Sacramento
Administrative area California
Postal code 95811
Country US
e-mail address VegCAMP@wildlife.ca.gov



Resource Maintenance

Resource maintenance
Update frequency unknown


Resource Constraints

Constraints
Limitations of use

Recognition that this dataset was created by Chico State Research Foundation-Geographical Information Center, for the Delta Stewardship Council and California Department of Fish and Game. We would also appreciate corrections to the map sent to VegCAMP. Contact VegCAMP Lead

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.


Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_North_American_1983
* Projection NAD_1983_California_Teale_Albers
* Coordinate reference details
Projected coordinate system
Well-known identifier 3310
X origin -16909700
Y origin -8597000
XY scale 10000
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3310
Well-known text PROJCS["NAD_1983_California_Teale_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-4000000.0],PARAMETER["Central_Meridian",-120.0],PARAMETER["Standard_Parallel_1",34.0],PARAMETER["Standard_Parallel_2",40.5],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3310]]

Reference system identifier
* Value 3310
* Codespace EPSG
* Version 6.8(9.2.0)


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name ds2855
* Object type composite
* Object count 0



ArcGIS Feature Class Properties
Feature class name ds2855
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing TRUE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Conceptual consistency
Measure description
Polygons were delineated using heads-up digitizing via ESRI's ArcMap while using National Agricultural Imagery Program (NAIP) baseline imagery flown at a one meter GSD and rectified to the national standards at a 1:24,000 scale. The following are the minimum mapping units (MMU): the minimum width for all polygons was 10 meters; the minimum area was .25 acres for vegetation polygons, 1 acre for quarries and mining operations, 5 acres for agriculture and urban (sub-MMU agricultural slivers are from an overlay with the Land IQ dataset where no crop data was available). Agricultual water canals and agricultural buildings were included with general agriculture, Pasture and grazing land that didnt appear to be irrigated was mapped as the California Introduced Annual and Perennial Herbaceous group (CAI) if over 1 acre in size. If pasture was less than 5 acres and appeared to be irrigated, it was usually grouped with agriculture (AGR), unless it was in an urban setting, when it was grouped with urban (URB) (for example, pastures around ranchette housing). If it was irrigated and over 5 acres, it was mapped as AGR. Bare Gravel and Sand (BGS) polygons were delineated when the polygon consisted of < 5% tree cover, <10% shrub cover, <10% herbaceous plant cover, and was over one acre in size. Roads less than 10 meters were dissolved into other polygon types, while roads wider than 10 meters were labeled as Urban or Agriculture depending on their adjacency/proximal location. Major highways were mapped as urban. Tree canopy hanging over roads and water, regardless of road/water width, was mapped as the tree type.




Data quality report - Quantitative attribute accuracy
Measure description
The accuracy assessment was performed via boat for waterside polygons and by foot for landside polygons. A total of 246 assessments were performed between 4/29/2019 and 5/10/2019 following the California Department of Fish and Wildlife protocol. Several of these polygons were removed from the scoring for a variety of reasons such as when the surveyors were only able to view a small portion of a polygon or if there were less than five of that alliance type surveyed. The final producers' score was was 82.8% and the users' score was 80%. Several corrections were made to the map post accuracy assessment and the final user can expect a higher degree of accuracy than reported here. Detailed accuracy assessment results can be found in the report "Delta Vegetation and Land Use Classification Update 2016." Vegetation Classification and Mapping Program, Biogeographic Data Branch California Department of Fish and Game, Sacramento. Link to download report: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174866 Link to download the dataset from BIOS: ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/2800_2899/ds2855.zip


Evaluation method
An independent sample was selected to test the accuracy of the major mapped elements in the project. First, a prioritized selection of mapped polygons was created. Polygons were constrained by access: they either fell within parcels contained in the California Protected Areas Database or they intersected publicly accessible roads or were adjacent to accessible stretches of river. All polygons that had been previously surveyed were removed. Next, the allocation was stratified by vegetation type to try to ensure that all vegetation types would receive enough samples to be evaluated for accuracy, and polygons were selected randomly, but constrained to having a minimum distance of 1000 m between polygons of the same vegetation type. Finally polygons that were clearly not accessible were removed and were replaced manually with other polygons. Surveyors did not know the mapped vegetation type of the polygons they were surveying. Each polygon was given a priority level so that the types with the fewest polygons had higher priority.




Lineage

Source data
Description
Crop Mapping 2014 developed for CADWR by LandIQ LLC




Geoprocessing history

Process
Date 2022-04-1214:58:34
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2022-04-1214:58:53
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2022-04-1214:59:02
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Rename
Command issued
Include in lineage when exporting metadata No


Distribution

Distribution format
* Name File Geodatabase Feature Class


Transfer options
Online source
Location https://www.wildlife.ca.gov/Data/BIOS
Function performed information

Online source
Location https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2800_2899/ds2855.zip
Function performed download

Fields

Details for object ds2855
* Type Feature Class
* Row count 0


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 0
* Scale 0
Field description
Internal feature number.
Description source
Esri
Description of values
Sequential unique whole numbers that are automatically generated.




Field Shape
* Alias Shape
* Data type Geometry
* Width 0
* Precision 0
* Scale 0
Field description
Feature geometry.
Description source
Esri
Description of values
Coordinates defining the features.




Field NVCS_Name
* Alias NVCS_Name
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The standardized name of the vegetation description compliant with the National Vegetation Classification System, maintained in the Manual of California Vegetation
Description source
Manual of California Vegetation, Online Edition


Field NVCS_Level
* Alias NVCS_Level
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The level of the National Vegetation Classification System hierarchy that the vegetation type corresponds to
Description source
http://usnvc.org/


Field MapClass
* Alias MapClass
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Basically the same as the Veg_Classification_Name where goup-level vegetation types, agriculture, urban, water, and mining have acronyms and full names.
Description source
Geographical Information Center


Field MapClassCode
* Alias MapClassCode
* Data type Integer
* Width 4
* Precision 0
* Scale 0
Field description
Code used to denote the map class
Description source
Geographical Information Center


Field GroupCode
* Alias GroupCode
* Data type Integer
* Width 4
* Precision 0
* Scale 0
Field description
(Called Group1 in GIC report)NVCS definition: Combinations of relatively narrow sets of diagnostic plant species, including dominants and codominants, broadly similar composition, and diagnostic growth forms. Classification level in between macrogroup and alliance. Group level is coarser than alliance and finer than macrogroup.
Description source
National Vegetation Classification System (usnvc.org/)
List of values
Value IMF
Description Introduced North American Mediterranean woodland and forest
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value RWF
Description Southwestern North American riparian evergreen and deciduous woodland
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value VRF
Description Vancouverian riparian deciduous forest
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value WVO
Description Californian Broadleaf Forest and Woodland
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value CSS
Description Central and south coastal California seral scrub
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value RIS
Description Southwestern North American introduced riparian scrub
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value RWS
Description Southwestern North American riparian/wash scrub
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value SSB
Description Southwestern North American salt basin and high marsh group
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value CAI
Description Mediterranean California naturalized annual and perennial grassland
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value CFG
Description California annual herb/grass
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value WDT
Description Western dogwood thicket
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value DAM
Description Western North American disturbed alkaline marsh and meadow
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value FEM
Description Arid West freshwater emergent marsh
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value NRW
Description Vancouverian and Rocky Mountain naturalized perennial grassland and Naturalized warm-temperate riparian and wetland
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value SAM
Description Southwestern North American alkali marsh/seep vegetation
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value TBM
Description Temperate Pacific tidal salt and brackish meadow
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value TFF
Description Temperate freshwater floating mat
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value NTF
Description Naturalized temperate Pacific freshwater vegetation
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value VPG
Description California vernal pool grassland matrix
Enumerated domain value definition source This was a mapping unit created by Todd Keeler-Wolf to describe areas where native grasslands intertwine with sub-minumum mapping unit vernal pools and swales.


Value VPB
Description Californian mixed annual/perennial freshwater vernal pool / swale bottomland
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value WTM
Description California warm temperate marsh/seep
Enumerated domain value definition source Vegetation Alliances and Associations of the Great Valley Ecoregion, CA


Value LSH
Description California-Vancouverian semi-natural littoral scrub and herb vegetation


Value QMG
Description Stripmines, Quarries and Gravel pits
Enumerated domain value definition source Anderson Level II


Value AGR
Description Agriculture


Value URB
Description Urban


Value WAT
Description Water
Enumerated domain value definition source Not a vegetation type. Open water attributes included < 5% tree, <10% shrub, and <10% herbaceous.




Field GroupName
* Alias GroupName
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
The full Group name for the group code


Field HT_CODE_
* Alias HT_CODE
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
The average height of the stand. This is a mean/modal value, or the average of the most commonly occurring species in the strata of the group/alliance. Outliers were removed from the average.
List of values
Value 1
Description < 1 meter


Value 2
Description 1-5 meters


Value 3
Description 5-20 meters


Value 4
Description 20-50 m


Value 5
Description >50 meters




Field SIZE_CATEG
* Alias SIZE_CATEGORY
* Data type String
* Width 100
* Precision 0
* Scale 0
Field description
The average diameter at breast height. This is a mean/modal value, or the average of the most commonly occurring species in the strata of the group/alliance. Outliers were removed from the average.
List of values
Value <1"
Description less than one inch DBH


Value 1-6"
Description one to six inches DBH


Value 6-11"
Description six to eleven inches DBH


Value 11-24"
Description eleven to twenty-four inches DBH


Value > 24" DBH
Description over twenty-four inches DBH




Field PER_HARDWO
* Alias PER_HARDWOOD
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Percent hardwood was entered as a whole number and is the absolute cover which includes porosity of the canopy. The value of .2 was entered when there was less than 1% cover of hardwoods.
Description source
CDFW VegCAMP vegetation mapping standards


Field PER_CONIFE
* Alias PER_CONIFE
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Percent conifer was entered as a whole number and is the absolute cover which includes porosity of the canopy. The value of .2 was entered when there was less than 1% cover of conifers.
Description source
CDFW VegCAMP vegetation mapping standards


Field PER_TREE
* Alias PER_TREE
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Percent tree is the sum of percent hardwood and percent conifer. The value of .2 was entered when there was less than 1% cover of trees.


Field PER_SHRUB
* Alias PER_SHRUB
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Percent shrub was entered as a whole number and is the total shrub cover present via birds eye view, which excludes overlapping vegetation from the layer(s) above it in the canopy, and includes porosity
Description source
CDFW VegCAMP vegetation mapping standards


Field HERB_CODE
* Alias HERB_CODE
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Herbaceous vegetation was entered via percentage classes.
List of values
Value 1
Description <2%


Value 2
Description 2-9%


Value 3
Description 10-39%


Value 4
Description 40-59%


Value 5
Description >59%


Value 6
Description >40% woody
Enumerated domain value definition source This value is for when the sum of shrub cover plus tree cover was over 40%. It is assumed that when the canopy layer is greater than 40% that the understory is not visible enough to be evaluated.




Field PER_TOTAL
* Alias PER_TOTAL_COVER
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
This is the sum of percent tree, percent shrub, and percent herbaceous. A mean value was chosen from each herbaceous class for this calculation. Example: For the 10-39% herb class a mean value of 25% was added to tree cover and shrub cover to equal total cover.


Field ISOLATED_T
* Alias ISOLATED_TREE
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Isolated tree was selected when tree cover was present but was less than 5% of the polygon.
List of values
Value Y
Description Yes
Enumerated domain value definition source Tree value was <5%




Field RESTORATIO
* Alias RESTORATION
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Restoration was chosen when it was clear to the photo interpreter that the land had been restored within the past five years. Older restoration areas become more challenging to differentiate from natural vegetation stands.
List of values
Value Yes
Description Yes




Field CLEARING_D
* Alias CLEARING_DISTURBANCE
* Data type String
* Width 75
* Precision 0
* Scale 0
Field description
Anthropogenic disturbace levels: Man-made disturbance including roads, trails, disking, scrapes


Field INVASIVE_P
* Alias INVASIVE_PLANT
* Data type String
* Width 75
* Precision 0
* Scale 0
Field description
Relative percentage of invasive species present. Many species that are invasive are not visible via aerial imagery and are most likely under-reported in this dataset. Larger species such as Arundo donax and Cortaderia jubata will have a higher degree of accuracy.
Description source
GIC


Field Comments_Final
* Alias Comments FInal
* Data type String
* Width 250
* Precision 0
* Scale 0
Field description
These are comments from the photo interpreter. They typically address other species present in the polygon, including invasive species and other codominant or sub-dominant species. Other significant information has been provided here, such as the presence of a bird rookery (mating site).


Field Ortho_NAIP_Year
* Alias Ortho_NAIP_Year
* Data type Integer
* Width 4
* Precision 0
* Scale 0
Field description
Year of base imagery used for linework. National Agricultural Inventory Program 2016 imagery was used for this current mapping effort.


Field Crop2014
* Alias Crop2014
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Crop types that were registered or planted as of 2014 (updated by Zhongwu Wang 5/7/2017), The Land Use IQ 2014 dataset was overlaid with the vegetation dataset to populate agriculture land with crop type. The slivers (very small polygons) that reside in this dataset are where there was no vegetation data and no LandIQ data. Oftentimes these were small agricultual roads where the photo interpreter classified them as agriculture (because they were not natural vegetation and more like agriculture than natural vegetation) and the LandIQ classified them as non-agriculture.
Description source
https://map.dfg.ca.gov/metadata/ds2677.html


Field County
* Alias County
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
County in which the majority of the polygon resides. County data is only present for agricultural polygons that we populated by the Land IQ dataset.


Field Source
* Alias Source
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Originator of data for each polygon attributed. There were two sources for this datase: Geographical Information Center (GIC) at Chico State Research Foundation and Land IQ, LLC.


Field Modified_B
* Alias Modified_B
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Name responsible for the LandIQ dataset update.


Field Date_Data_
* Alias Date_Data_
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
LandIQ dataset date.


Field Last_Modif
* Alias Last_Modif
* Data type Date
* Width 8
* Precision 0
* Scale 0
Field description
Date of the last update to the 2014 LandIQ dataset.


Field DWR_Standa
* Alias DWR_Standa
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Department of Water Resources version of crop type


Field UID
* Alias UID
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Unique value given to each polygon


Field CalVegName
* Alias CalVegName
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
A crosswalk to the CalVeg vegetation system
Description source
https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192


Field CalVegCode
* Alias CalVegCode
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Code used for a crosswalk to the CalVeg vegetation system
Description source
https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192


Field CWHRType
* Alias CWHRType
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Crosswalk to the California Wildlife Habitat Relationships system
Description source
https://www.wildlife.ca.gov/Data/CWHR/Wildlife-Habitats


Field CWHRCODE
* Alias CWHRCODE
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Code assigned to the California Wildlife Habitat Relationships type
Description source
https://www.wildlife.ca.gov/Data/CWHR/Wildlife-Habitats


Field GlobalRank
* Alias GlobalRank
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The state rarity ranking of the plant community mapped (only for alliances). 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 security globally. Ranks G1-G3 are considered rare.
Description source
NatureServe, http://explorer.natureserve.org/granks.htm


Field StateRank
* Alias StateRank
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The state rarity ranking of the plant community mapped (only for alliances). 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 most imperiled/has very few occurrences to S5, when a community is demonstrably secure due to security statewide. Ranks S1-S3 are considered rare.
Description source
NatureServe


Field Rare
* Alias Rare
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare. Y=Rare, N=Not Rare, U=Unknown
Description source
California Department of Fish and Wildlife, VegCAMP


Field CaCode
* Alias CaCode
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
California Natural Community Codes - unique code assigned to alliances and associations
Description source
California Department of Fish and Wildlife, VegCAMP


Field NVCS_Alliance
* Alias Alliance_Name
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Latin name(s) of species characteristic or diagnostic to define the alliance.
Description source
Manual of California Vegetation (Online)


Field NVCS_Group
* Alias NVCS_Group
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The standardized name for the group within the National Vegetation Classification System that the vegetation type corresponds to
Description source
Manual of California Vegetation, 2nd edition


Field NVCS_MG
* Alias NVCS_MG
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The standardized name for the macrogroup within the National Vegetation Classification System that the vegetation type corresponds to
Description source
Manual of California Vegetation, 2nd edition


Field Acres
* Alias Acres
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Number of acres represented by each polygon


Field Shape_Length
* Alias Shape_Length
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Length of feature in internal units.
Description source
Esri
Description of values
Positive real numbers that are automatically generated.




Field Shape_Area
* Alias Shape_Area
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Area of feature in internal units squared.
Description source
Esri
Description of values
Positive real numbers that are automatically generated.




Field Hectares
* Alias Hectares
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Number of hectares represented by each polygon




Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2022-04-12


ArcGIS metadata properties
Metadata format ArcGIS1.0
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2022-04-1214:58:40
Last modified in ArcGIS for the item 2022-04-1214:58:24


Automatic updates
Have been performed No
Last update 2022-04-1214:58:24


Metadata Contacts

Metadata contact
Organization's name Jason Schwenkler, Geographical Information Center, Director
Contact's role originator


Metadata contact
Organization's name VegCAMP, California Dept. of Fish and Wildlife, Biogeographic Data Branch
Individual's name VegCAMP (Vegetation Classification and Mapping Program)
Contact's position Vegetation Classification and Mapping Program
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9765

Address
Type both
Delivery point 1700 9th Street, 4th Floor
City Sacramento
Administrative area California
Postal code 95811
Country US
e-mail address VegCAMP@wildlife.ca.gov



Metadata Maintenance

Maintenance
Update frequency unknown


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