Vegetation Classification and Mapping Program, California Department of Fish and Wildlife
20140829
Vegetation - Suisun Marsh - 2012 [ds1029]
vector digital data
2012 Vegetation Map Update for Suisun Marsh Report to follow
https://www.wildlife.ca.gov/Data/BIOS
https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/ds1029.zip
Vegetation delineations based on photo interpretation and formal vegetation classification plus change detection.
This is part of an ongoing monitoring project that the Biogeographic Data Branch (BDB) of the California Department of Fish and Wildlife (CDFW), in collaboration with the Department of Water Resources (DWR) and the CDFW Bay Delta Region (BDR), started in 1999 to track changes in the Suisun Marsh vegetation over time. This is the fifth update using the current mapping standards since the original map was made in 1999. All of the vegetation maps, including the 2012 map on which this report is based, can be viewed and downloaded using the online CDFW Biogeographic Information and Observation System (BIOS) and the links to the associated reports included in the metadata. The reports can also be downloaded from the CDFW website ( http://www.dfg.ca.gov/biogeodata/vegcamp/veg_classification_reports_maps.asp ).
To create the 2012 Suisun Marsh re-map, vegetation was interpreted from the true color imagery that was flown at 1:9600 on June 19, 2012 and delivered to VegCAMP in January 2013. Polygons were delineated using heads-up digitizing (i.e., a photo interpreter manually drew polygons around each stand of vegetation) in ArcMAP 10.1 and polygon attributes were recorded within a personal geodatabase. In 2009, staff from the DWR’s Mapping & Photogrammetry Section measured the positions of permanent residual features identified both in photographs and on the ground using Garmin 76CSx handheld GPS units. The published accuracy for these units is typically less than 5 meters. A total of 51 control points were measured and used to process the 2009 imagery, which resulted in an ortho-mosaic that closely agreed with NAIP digital orthorectified quarter quadrangle (DOQQ) aerial photography. The same method and control points were used to process the 2012 imagery in order to produce vegetation maps that are spatially comparable. Refer to VegCAMP (2012) for a complete description of the methods used for improving the spatial accuracy of the imagery. There was a large field effort for this mapping cycle that included the collection of 320 reconnaissance points that captured data for 564 vegetation polygons. The 2012 effort also marked the second permanent plot resample since the original plots were sampled in 1999 (the first resample was in 2006). Of the original 198 permanent field plots, 98 were resampled this cycle (VegCAMP 2014). In total, the field data collected in 2012 provided information for over 4.5% (or 3,146 acres) of the total mapping area. All of the data were collected between July and September 2012. Final report associated with this vegetation map to follow.
As needed
-122.137460
-121.849125
38.251313
38.038229
ISO 19115 Topic Category
environment
ISO 19115 Topic Category
biota
None
marsh
land cover
vegetation
wetland
tidal
None
Solano County
California
Suisun Marsh
San Francisco Bay Delta
None
License: This work is licensed under Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). Using the citation standards recommended for BIOS datasets (https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS) satisfies the attribution requirements of this license.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.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 VegCAMP Lead by email or by phone (916) 324-9765.
California Department of Fish and Wildlife
Rachelle Boul
Environmental Scientist, Vegetation Classification and Mapping Program
mailing and physical
1807 13th Street, Suite 202
Sacramento
CA
95811
US
916-324-9718
(916) 324-0475
Rachelle.Boul@wildlife.ca.gov
8:00-5:00pm
Vegetation Classification and Mapping Program, California Department of Fish and Wildlife
VegCAMP (Vegetation Classification and Mapping Program)
Vegetation Classification and Mapping Program Lead
mailing and physical
1700 9th Street, 4th Floor
Sacramento
CA
95811
(916) 324-9765
VegCAMP@wildlife.ca.gov
Vegetation Classification and Mapping Program, California Department of Fish and Wildlife
VegCAMP (Vegetation Classification and Mapping Program)
Vegetation Classification and Mapping Program Lead
mailing and physical
1700 9th Street, 4th Floor
Sacramento
CA
95811
(916) 324-9765
VegCAMP@wildlife.ca.gov
Vegetation Classification and Mapping Program (VegCAMP), Department of Fish and Wildlife.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270
Vector
GT-polygon composed of chains
20703
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
ds1029
Suisun marsh vegetation 2003 in State Plane II, NAD 83, Feet with attributes
Cov_2012
Percent bird’s-eye cover of total living vascular vegetation within a vegetation stand.
3
10-25%
0
N/A: Use when the polygon is labeled with a type that is not actually vegetation (i.e., roads, sloughs, structures, urban areas, but not bare ground, which gets attributed since it may have up to 10% cover).
1
<2%
6
>75%
4
25-50%
5
50-75%
2
2-10%
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
UID
Unique identifier for each polygon.
ID_2012
This field identifies the method in which the photo interpreter used to determine the attributes for that polygon.
S06
Sampled in 2006
F
Field Checked (post map)
S12
Sampled in 2012
R
Reconnaissance
P
Photo interpretation
Notes_2012
Any additional useful information.
Rare
Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare.
Y
Rare
N
Not Rare
CaCode
California Natural Community Codes - unique code assigned to alliances and associations.
GlobalRank
The global rarity rank of the plant community mapped (only for alliances). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance. See: http://www.natureserve.org/publications/ConsStatusAssess_RankMethodology.jsp.
CWHRCode
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/.
CalVegGCode
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.
Habitat
Identifies the areas within the Marsh that are tidally influenced versus areas that are leveed (or managed).
1
Tidal: Tidal wetlands (including muted tidal) are those areas naturally affected regularly by tidal fluctuation The area may or may not be vegetated with vascular or non-vascular plants and may or may not have any evidence of human modification such as ditches, excavations, interrupted levees or berms etc.
2
Leveed: Leveed wetlands are those areas that are completely enclosed and are totally restricted to any natural tidal influence.
3
Slough
Acres
GIS-calculated area measurements of each mapped polygon.
Hectares
GIS-calculated area measurements of each mapped polygon.
MgmtRegion
Each polygon falls within one of the four management Regions described in the Suisun Marsh Habitat Management, Preservation, and Restoration Plan (http://www.usbr.gov/mp/nepa/nepa_projdetails.cfm?Project_ID=781) and is attributed accordingly.
2
Region 2
3
Region 3
1
Region 1
4
Region 4
NVCSAlliance
The standardized name for the alliance within the National Vegetation Classification System. See http://usnvc.org/.
Dist_2012
The percent of polygon that has been affected by human disturbance (including disking, plowing, mowing).
1
Not evident: No disturbances are visible from the aerial imagery and there is no field data.
4
High: More than 66% of the polygon is affected.
0
N/A: Use when the polygon is labeled with a type that is not actually vegetation (i.e., roads, sloughs, structures, urban areas).
2
Low: less than 33% of the polygon is affected.
3
Medium: between 33% and 66% of the polygon is affected.
NVCSGroup
The standardized name for the group within the National Vegetation Classification System. See http://usnvc.org/.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
MapClassCode
Code for each vegetation type mapped. MapClassCodes are defined in the MapClass field.
NVCSLevel
The standardized level of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/).
StateRank
The state rarity rank of the plant community mapped (only for alliances). The state rarity rank of the plant community mapped (only for alliances). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance. See: http://www.natureserve.org/publications/ConsStatusAssess_RankMethodology.jsp.
MapClass
The finest level of vegetation type mapped (alliance, association, group or mapping unit); or land use for polygons that are not natural vegetation, per the mapping classification.
NVCSName
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.
Ht_2012
Average height of the dominant vegetation within the polygon.
5
5-10 meters
4
2-5 meters
6
>10 meters
1
<0.5 meters
0
N/A
3
1-2 meters
2
0.5-1 meters
CWHRType
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/.
CalVegName
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.
NVCSMG
The standardized name for the macrogroup within the National Vegetation Classification System. See http://usnvc.org/.
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.
20220324
Department of Fish and Wildlife
Rachelle Boul
Environmental Scientist, Vegetation Classification and Mapping Program
mailing and physical
1807 13th Street, Suite 202
Sacramento
CA
95811
US
916-324-9718
916-324-0475
Rachelle.Boul@wildlife.ca.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time