Vegetation - Proposed Tehachapi Pass High Speed Rail Corridor [ds1328]

SDE Feature Class

Open this dataset in BIOS
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Tags
biota, California, environment, vegetation, Kern County


Summary

The purpose of this map is to support routing and mitigation planning for the high-speed rail system.

Description

The Geographical Information Center (GIC) at California State University, Chico, completed a vegetation map of the Proposed Tehachapi Pass High-Speed Rail Corridor (HSRC), covering 199,493 acres. The project was funded by the Strategic Growth Council to support routing and mitigation planning for the high-speed rail system. The map was produced using heads-up digitizing based on 2012 National Agricultural Imagery Program (NAIP) imagery. The minimum mapping unit (MMU) is one acre for most vegetation types, with a smaller MMU for wetlands. Although the primary purpose of the map is to document vegetation communities, it provides additional structural data such as herbaceous, shrub, and tree cover, and information about the level of disturbance within the vegetation stand. The overall accuracy of the map exceeded the state standard of 80%.

Credits

Geographic Information Center, Chico Research Foundation

Use limitations

DFW appreciates learning how our 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 Diana Hickson by email at Diana.Hickson@Wildlife.ca.gov or by phone at 916-327-5956.

Extent

West -118.845188 East -118.144854
North 35.365976 South 35.023798

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 biota, environment


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

Place keywords California, Kern County

Stratum keywords Alliance level

Theme keywords environment

Thesaurus
Title ISO 19115 Topic Category




Theme keywords biota

Thesaurus
Title ISO 19115 Topic Category




Theme keywords vegetation

Citation

Title Vegetation - Proposed Tehachapi Pass High Speed Rail Corridor [ds1328]
Publication date 2015-09-2900:00:00


Presentation formats digital map
FGDC geospatial presentation format vector digital data


Citation Contacts

Responsible party
Organization's name California State University, Chico, Geographical Information Center
Contact's role originator


Responsible party
Individual's name Jason Schwenkler
Organization's name Geographic Information Center @ Chico Research Foundation
Contact's position Director
Contact's role point of contact


Contact information
Phone
Voice 530-898-4372

Address
Type both
Delivery point 35 Main Street
City Chico
Administrative area CA
Postal code 95929-0327
Country US
e-mail address schwenkl@gic.csuchico.edu

Hours of service
M-F 9-5


Resource Details

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


Status completed
Spatial representation type vector


Supplemental information
Minimum Mapping Resolution All vegetation was digitized at a scale of 1:2,000 using National Agricultural Inventory Program 2012 aerial imagery (USDA Summer 2012). Additional imagery and layers such as Google maps, Bing maps, Normalized Data Vegetation Index, and Color Infrared assisted in photo interpretation. The minimum mapping unit (MMU) for a vegetation polygon was one acre with an average width of >10 meters. Exceptions to the MMU rules were allowed for important or special stand types, such as Celtis reticulata. Vegetation Types Vegetated polygons were mapped to the Alliance level of the National Vegetation Classification System (NVCS) hierarchy if it was possible to discern the vegetation type at the given resolution of the imagery. Otherwise, vegetation was mapped more broadly to the Group level. The mapping units (i.e., groups and alliances) were based on the vegetation classification key created by the Vegetation Classification and Mapping Program (VegCAMP) (Klein and Keeler-Wolf 2014) and in A Manual of California Vegetation (Sawyer et al. 2009). Vegetation Cover All vegetation cover was estimated using Birdseye Total Cover, i.e. what can be seen on the aerial photo excluding understory layers when covered by an overstory layer. Polygons were delineated following the cover class rules listed below. Boundaries and breaks in polygons within the same alliance were determined by significant changes in density, species composition, size, and disturbance. These boundaries and breaks were often driven by changes in slope, aspect, and/or soil type. Absolute cover: The actual percentage of the surface area of a polygon that is covered by a species. When surveying from the ground the total percentage can actually exceed 100%, due to overlapping layers of vegetation types. When doing aerial estimates, the overlapping layers are not accounted for and the maximum value for a polygon is 100%. Typically this value is far lower due to the porosity of vegetation. Relative cover: The percentage of surface area within a polygon that is covered either by one species relative to other species within the same physiognomic stratum (tree, shrub, herbaceous) or one stratum relative to the total vegetation cover in a polygon. Thus, 50 percent relative cover of Quercus douglasii in the tree layer means that Q. douglasii comprises half the cover of all tree species within a polygon; 50 percent relative shrub cover means that shrubs make up half the cover of all vegetation within a polygon. Relative cover values are proportional numbers that, when added together, total 100 percent for each species within a stratum or each stratum within a stand of vegetation. Tree type alliances were mapped when trees were > 5% of the polygon. The trees that were exempt from this rule were Juniperus californica, Yucca brevifolia, and Pinus monophylla (threshold values can be found in the Mapping Thresholds section of the High Speed Rail Corridor Mapping Standards report https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=101359). The percent of absolute tree cover was estimated taking into account the porosity of the tree canopy. Tree canopies over water, were digitized following the canopy line (as opposed to estimating the shore line beneath the canopy). If there was a change in canopy overstory density or size class within the same alliance, the polygon was segregated if it was >5 acres. If it was the understory layer that changed and the alliance remained the same, the polygon was segregated if >10 acres. Shrub vegetation alliances were mapped when tree cover was <5%, and shrub cover was >10%. The percent of absolute shrub cover was estimated taking into account the porosity of the shrub layer. There are several exceptions to this rule when in desert or transitional desert eco-regions, and select shrub alliances were mapped when evenly dispersed down to 2% (threshold values can be found in the Mapping Thresholds section of the High Speed Rail Corridor Mapping Standards report https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=101359). Most of the herbaceous polygons were left at the group level due to the limits of aerial photo interpretation and resolution. Herbaceous vegetation types were mapped to the group/alliance level when tree cover was < 5%, shrub cover was <10%, and the herbaceous plant cover was >10%. The percent of absolute herbaceous cover was estimated taking into account the porosity of the herbaceous layer. Agriculture, Urban, Water, Barren Gravel, Sand, Pastures, and Roads The MMU for agricultural polygons (AGR) was 10 acres. The MMU for urban polygons (URB) was 10 acres. The MMU for water (WAT) was 1 acre. The MMU for Quarry, Mine, Gravel (QMG) was 1 acre. Pasture and grazing land that didnt appear to be irrigated was mapped as CAI, the California Introduced Annual and Perennial Herbaceous group, if over 1 acre in size. If pasture was less than 5 acres and appeared to be irrigated, it was usually grouped with AGR, unless it was in an urban setting, when it was grouped with URB (for example, pastures around ranchettes). If it was irrigated and over 5 acres, it was mapped as AGR. When mapping urban or transitional urban settings, agriculture and grasslands were pulled out when over 5 acres. 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 wide were dissolved into other polygon types, while roads wider than 10 meters were labeled as Urban or Agriculture depending on their adjacency/proximal location. Tree canopy hanging over roads, regardless of road width, was mapped as the tree type. Wind power installations were mapped as Quarry, Mine, Gravel when polygons were greater than one acre. This map was independently verified by staff of the California Department of Fish and Wildlife. The producers (GIC) scored an 84.7% on the accuracy of the assessed polygons. A report discussing the map accuracy can be found here: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=100932. References: Buck-Diaz, J., S. Batiuck 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 Klein, A. and T. Keeler Wolf. 2014. Hierarchical Field and Mapping Key to the Vegetation Map of the Proposed Tehachapi Pass High Speed Rail Corridor. California Department of Fish and Wildlife. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=101349. Mayer, K. and W. Laudenslayer, Jr. (eds.) 1988. A Guide to Wildlife Habitats of California. State of California, Resources Agency, Department of Fish and Game Sacramento, CA. 166 pp. Sawyer, J.O., T. Keeler-Wolf, and J.M. Evens. 2009. A Manual of California Vegetation, 2nd Edition. California Native Plant Society, Sacramento, CA. Vegetation Classification and Mapping Program (VegCAMP). 2013. Vegetation Classification and Mapping Program. 2015. Accuracy assessment of the East Sacramento Valley Natural Vegetation Map. California Department of Fish and Wildlife Vegetation Classification and Mapping Program. Sacramento, Ca. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=58678
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552


Credits
Geographic Information Center, Chico Research Foundation
ArcGIS item properties
* Name Vegetation - Proposed Tehachapi Pass High Speed Rail Corridor [ds1328]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Geographic extent
Bounding rectangle
West longitude -120.171242
East longitude -118.646865
South latitude 34.896259
North latitude 36.937078

Extent
Description
ground condition
Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -118.845188
* East longitude -118.144854
* North latitude 35.365976
* South latitude 35.023798
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude 105288.352900
* East longitude 168429.417900
* South latitude -330904.840100
* North latitude -293903.522300
* Extent contains the resource Yes

Resource Maintenance

Resource maintenance
Update frequency not planned


Resource Constraints

Constraints
Limitations of use

DFW appreciates learning how our 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 Diana Hickson by email at Diana.Hickson@Wildlife.ca.gov or by phone at 916-327-5956.


Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 8.2.6


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS1328_20150930
* Object type composite
* Object count 0



ArcGIS Feature Class Properties
Feature class name DS1328_20150930
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Quantitative attribute accuracy
Measure description
This map was independently verified by staff of the California Department of Fish and Wildlife. The producers (GIC) scored an 84.7% on the accuracy of the assessed polygons. A report discussing the map accuracy can be found here: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=100932.




Geoprocessing history

Process
Date 2015-09-3014:21:10
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\CalculateField
Command issued
Include in lineage when exporting metadata No


Process
Date 2015-09-3014:44:04
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2015-09-3014:45:30
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name Diana Hickson
Organization's name California Department of Fish and Wildlife
Contact's position Senior Biologist, Vegetation Classification and Mapping Program.
Contact's role point of contact


Contact information
Phone
Voice (916) 327-5956
Fax Diana.Hickson@wildlife.ca.gov

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

Hours of service
M-F 9-5


Available format
Name File Geodatabase Feature Class




Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov
Function performed information

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/1300_1399/ds1328.zip
Function performed download

Fields

Details for object DS1328_20150930
* Type Feature Class
* Row count 0


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
Field description
Auto caluculated number assigned to each polygon
Description source
Esri
Description of values
Sequential unique whole numbers that are automatically generated.




Field HT_CODE
* Alias HT_CODE
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Tree height. Average tree height for the polygon was estimated by taking a modal mean. Outliers were removed and then an average of the most commonly occurring height class was taken. Four height classes were used: 2-5, 5-10, 10-15, and >15 meters.
Description source
A Guide to Wildlife Habitats of California (USDA et. al. 1988).


Field SIZE_CATEG
* Alias SIZE_CATEGORY
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Size Category. Average tree diameters were estimated at breast height for each polygon and classified into one of five categories: Seedlings (<1), Saplings (1-6), Pole (6-11), Small (11-24), Medium-large (>24) and Multi layered medium/large over small.
Description source
A Guide to Wildlife Habitats of California (USDA et. al. 1988).


Field PER_HARDWO
* Alias PER_HARDWOOD
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Percent Hardwood. The absolute percentage of the polygon occupied by hardwood trees, does not include conifers.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field PER_CONIFE
* Alias PER_CONIFE
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Percent Conifer. The absolute percentage of the polygon occupied by coniferous trees, does not include hardwoods.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field PER_TREE
* Alias PER_TREE
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Percent Tree. The sum of the hardwoods and conifers. Absolute percentage of space in a polygon occupied by trees. In Agricultural (AGR), Urban (URB), and Quarry, Mine, Gravel (QMG) polygons PER_TREE was coded with 333.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field PER_SHRUB
* Alias PER_SHRUB
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Percent Shrub. The absolute percentage of the polygon that is occupied by shrubs. If the overstory layer(s) were greater or equal to 40% then the understory layer(s) would not be visible in the aerial photo and would not be estimated. If tree cover was greater than or equal to 40%, 99 was entered for the shrub value. In Agricultural (AGR) and Urban (URB) polygons PER_SHRUB was coded with 333.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field HERB_CODE
* Alias HERB_CODE
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Percent Herbs. The absolute percentage of the polygon that is occupied by herbs. Herb cover was estimated in percent cover ranges, when total tree and shrub cover was <40% and herbs were =10%. If tree and shrub cover was greater than or equal to 40%, 99 was entered as the herb cover value. For AGR and URB polygons the herb class was left null. Herbs were classified into one of five classes: <2%, 2-9%, 10-39%, 40-59%, >60%.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field ISOLATED_T
* Alias ISOLATED_TREE
* Data type String
* Width 3
* Precision 0
* Scale 0
Field description
Isolated Tree. Yes indicates presence of natural or semi-natural isolated trees in agricultural, shrub, and herbaceous polygons when the presence of trees is <5%.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field RESTORATIO
* Alias RESTORATION
* Data type String
* Width 3
* Precision 0
* Scale 0
Field description
Restoration. Restoration is "Yes" if any portion of the polygon was a part of a restoration project.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)
List of values
Value Minimal disturbance
Description 5-25%




Field CLEARING_D
* Alias CLEARING_DISTURBANCE
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Clearing Disturbance. The absolute percentage of clearing disturbances, such as roads, trails, disking, or scraping, were estimated for each polygon and classified into one of four categories: High Disturbance (>50%), Moderate Disturbance (25-50%), Minimal Disturbance (5-25%) and No Disturbance (<5%).
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field INVASIVE_P
* Alias INVASIVE_PLANT
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Invasive Plant. Visually observable invasive plant species were recorded and classified into one of four categories: High Invasive Plant Content (>50%), Moderate Invasive Plant Content (25-50%), Minimal Invasive Plant Content (5-25%) and No Invasive Plant Content (<5%).
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field PER_TOTAL
* Alias PER_TOTAL_COVER
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Percent Total Cover. The percent of total cover was calculated by adding the total tree, shrub, and the mean of the herbaceous layers.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field Acres
* Alias ACRES
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
GIS-calculated area measurements of each mapped polygon.


Field JOSHUA_T
* Alias JOSHUA_TREE
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Joshua Tree. Indicates the presence of Joshua trees in the polygon. The presence of Joshua tress was recorded using the following categories: N/A Not applicable -outside of the range of Joshua tree, None or none Observable, 0-1%, 1-5%, >5%.
Description source
High Speed Rail Corridor Mapping Standards (GIC 2014)


Field Shape
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
Field description
Feature geometry.
Description source
ESRI
Description of values
Coordinates defining the features.




Field ASSOCIATION
* Alias ASSOCIATION
* Data type String
* Width 255
* Precision 0
* Scale 0
Description source
A Manual of California Vegetation (Sawyer et al. 2009)
Field description
The standardized name for the association within the National Vegetation Classification System. See http://usnvc.org/ . Associations were assigned when field data was collected in a polygon.


Field UID
* Alias UID
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
Unique identifier for each polygon.


Field MAPCLASS
* Alias MAPCLASS
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The finest level of vegetation type mapped (alliance, group or macrogroup); or land use for polygons that are not natural vegetation, per the mapping classification.
Description source
Key to the Vegetation Map of the Proposed Tehachapi Pass High Speed Rail Corridor (Klein


Field NVCSLEVEL
* Alias NVCSLEVEL
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
The standardized level of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/) .
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field NVCSNAME
* Alias NVCSNAME
* Data type String
* Width 100
* Precision 0
* Scale 0
Field description
The standardized name of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/) . Since the NVCS does not have categories for human land use or otherwise unvegetated land, those descriptions were drawn from the California Wildlife Habitat Relationship.
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field CALVEGNAME
* Alias CALVEGNAME
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
A crosswalk to the CalVeg vegetation system. Note that there may be a one-to-many relationship between CalVeg and NVCS. See http://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
A crosswalk to the CalVeg vegetation system. Note that there may be a one-to-many relationship between CalVeg and NVCS. See http://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
A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. See http://www.dfg.ca.gov/biogeodata/cwhr/ .


Field CWHRCODE
* Alias CWHRCODE
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. See http://www.dfg.ca.gov/biogeodata/cwhr/ .


Field GLOBALRANK
* Alias GLOBALRANK
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
The global rarity rank of the plant community (only for polygons mapped to the alliance level). G1: Fewer than 6 viable occurrences and/or 2000 acres worldwide; G2: 6-20 viable occurrences and/or 2000-10,000 acres worldwide; G3: 21-100 viable occurrences and/or 10,000-50,000 acres worldwide; G4: Greater than 100 viable occurrences and/or greater than 50,000 acres worldwide; G5: Community demonstrably secure due to secure worldwide abundance. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field STATERANK
* Alias STATERANK
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
The state rarity rank of the plant community (only for polygons mapped to the alliance level). S1: Fewer than 6 viable occurrences and/or 2000 acres statewide; S2: 6-20 viable occurrences and/or 2000-10,000 acres statewide; S3: 21-100 viable occurrences and/or 10,000-50,000 acres statewide; S4: Greater than 100 viable occurrences and/or greater than 50,000 acres statewide; S5: Community demonstrably secure due to secure statewide abundance. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field RARE
* Alias RARE
* Data type String
* Width 3
* Precision 0
* Scale 0
Field description
Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare.
Description source
A Manual of California Vegetation (Sawyer et al. 2009)
List of values
Value Y
Description Rare


Value N
Description Not Rare




Field CACODE
* Alias CACODE
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
California Natural Community Codes - unique code assigned to alliances and associations.
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field HECTARES
* Alias HECTARES
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
GIS-calculated area measurements of each mapped polygon.


Field NVCSALLIANCE
* Alias NVCSALLIANCE
* Data type String
* Width 100
* Precision 0
* Scale 0
Field description
The standardized name for the alliance within the National Vegetation Classification System. See http://usnvc.org/ .
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field NVCSGROUP
* Alias NVCSGROUP
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The standardized name for the group within the National Vegetation Classification System. See http://usnvc.org/ .
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field NVCSMG
* Alias NVCSMG
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
The standardized name for the macrogroup within the National Vegetation Classification System. See http://usnvc.org/ .
Description source
A Manual of California Vegetation (Sawyer et al. 2009)


Field Shape.STArea()
* Alias Shape.STArea()
* Data type Double
* Width 0
* Precision 0
* Scale 0




Field Shape.STLength()
* Alias Shape.STLength()
* Data type Double
* Width 0
* Precision 0
* Scale 0






Overview Description
Entity and Attribute Detail Citation
Note: certain fields have been added by the Department of Fish and Game's Vegetation Classification and Mapping Program. These include crosswalks to the Wildlife Habitat Relationships and CalVeg classification systems, Global and State Ranks, CaCode and the fields relating the mapping units to the National Vegetation Classification System as it is described for California in the 2nd edition of the Manual of California Vegetation




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 2015-09-30


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


Created in ArcGIS for the item 2015-09-3014:43:52
Last modified in ArcGIS for the item 2015-09-3014:44:49


Automatic updates
Have been performed Yes
Last update 2015-09-3014:44:49


Metadata Contacts

Metadata contact
Individual's name Jason Schwenkler
Organization's name Geographic Information Center @ Chico Research Foundation
Contact's position Director
Contact's role point of contact


Contact information
Phone
Voice 530-898-4372

Address
Type both
Delivery point 35 Main Street
City Chico
Administrative area CA
Postal code 95929-0327
Country US
e-mail address schwenkl@gic.csuchico.edu

Hours of service
M-F 9-5


Metadata Maintenance

Maintenance
Update frequency unknown


Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc