Lynn Sweet, University of California, Riverside, Associate Research Specialist
20200722
Vegetation - Coachella Valley Floor [ds2898]
vector digital data
1700 9th Street, 4th Floor, Sacramento, CA, 95811, US
VegCAMP (Vegetation Classification and Mapping )
https://www.wildlife.ca.gov/Data/BIOS
https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2800_2899/ds2898.zip
The University of California Riverside’s Center for Conservation Biology (CCB) has created fine-scale vegetation maps for a number of Conservation Areas under the jurisdiction of the Coachella Valley Multiple Species Habitat Conservation Plan (CVMSHCP) under contract with the Coachella Valley Conservation Commission (CVCC). The primary purpose for creating these maps is provide a landscape-scale approach to monitoring changes due to land use, invasive species, recreation, hydrology, and climate. These digital maps, documenting changes and their causes, are then tools for prioritizing future conservation actions. The vegetation classification follows Federal Geographic Data Committee (FGDC) and National Vegetation Classification Standards (NVCS; Federal Geographic Data Committee 2008). The classification is meant to align with previous and concurrent efforts previous survey and classification work done by California Department of Fish and Wildlife's Vegetation Classification and Mapping Program (VegCaMP) and Aerial Information Systems (AIS) for the Desert Renewable Energy Conservation Plan Area as well as the southeastern Salton Sea Mid-Desert Area, and by the National Park Service for Joshua Tree National Park.This unit was mapped using the California Department of Fish and Wildlife (CDFW) and California Natural Plant Society Combined (CNPS) Vegetation Classification and Mapping Program protocol (CNPS 2014). The primary purpose was to develop a dynamic and accurate vegetation map for the Coachella Valley Floor Reserve Management Unit, so that it may be applied to further conservation efforts and assist with management of the 27 species and 27 natural communities listed within the plan. Map polygons were assessed for vegetation type, percent cover, presence of exotics, anthropogenic disturbance, and roadedness. This map is an updated map for the year 2018 for the area within the 95,000 acres that fall within the 18 CVMSHCP Management Units on the Coachella “Valley Floor.” Within the study areas, rapid assessment protocol vegetation plots, basic vegetation assessment plots and supplemental reconnaissance observations were obtained within the study at pre-determined points in order to document the plant community, disturbances, and invasive species across space and types. Heads-up photo-interpretation of 2013 local flight true-color imagery and field information were combined to produce delineations of vegetation alliances and associations according to the California Department of Fish and Wildlife classification system, outlined in the Manual of California Vegetation (MCV) Second Edition (Sawyer et al.2009). Additional field data was collected in 2018 and incorporated into the 2018 map update. The 2018 map delineation was done by photo-interpretation of updated imagery, with a focus on stand changes, mortality, cover and land use changes, and other anthropogenic changes.To better focus on conservation of particular habitats, there are several alliances where the minimum mapping unit (MMU) is less than an acre; including Prosopis glandulosaWoodland Alliance (MMU .5 acres), and Washingtonia fillifera Shrubland Alliance(MMU .34 acres), as well as wetlands and certain wash types which displayed complexity that would necessitate delineation. In order to better delineate habitat for the aeolian suite of species covered under the Plan, the following provisional alliances were used: Dicoria canescens--Oenothera deltoides Sparsely Vegetated Active Dune Provisional Alliance; Larrea tridentata / Abronia villosa Stabilized Sand Fields Provisional Alliance; andPsorothamnus arboresens / Dicoria canescens Ephemeral Sand Fields Provisional Alliance.
The University of California, Riverside Center for Conservation Biology (CCB) created two fine‐scale vegetation maps of the valley floor, originally as the first of many subunits prepared for the Coachella Valley Multiple Species Habitat Conservation Plan with assistance from the Coachella Valley Conservation Commission (CVCC). This subunit was completed in as part of the 2013-2014 task agreement and corrected as part of the 2017-2018 and 2018-2019 agreements. This map covers approximately 96,000 acres within the Coachella Valley of Riverside County, California, USA. The primary purpose was to develop a dynamic and accurate vegetation map for the Coachella Valley floor, so that it may be applied to further conservation efforts, and assist with management of the 27 species and multiple types of natural communities listed within the plan.
20180101
20181231
This feature class reflects the status of vegetation in 2018.
As needed
-116.832641
-116.131449
34.043595
33.709336
None
Vegetation, Vegetation Cover, Vegetation Species, Ecological Dynamics, Community Dynamics, Ecosystem Functions, Community Structure, Terrestrial Ecosystems, Exotic Species, Deserts, Dunes, Environmental Impacts, Conservation, Land Cover, Landscape Management, Landscape Ecology,
ISO 19115 Topic Categories
biota
environment
imageryBaseMapsEarthCover
None
North America, United States of America, California, Palm Springs, Palm Desert, Indio, Coachella Valley, Riverside County
None
CDFW’s VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.govor email 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.
University of California, Riverside
Lynn Sweet
Associate Research Specialist
mailing and physical
75-080 Frank Sinatra Dr.
Palm Desert
CA
92211
US
760-834-0594
lynn.sweet@ucr.edu
California Department of Fish and Wildlife
VegCAMP (Vegetation Classification and Mapping )
VegCAMP Lead (Vegetation Classification and Mapping )
mailing and physical
1700 9th Street, 4th Floor
Sacramento
CA
95811
US
(916) 324-9765
VegCAMP@wildlife.ca.gov
California Department of Fish and Wildlife
VegCAMP (Vegetation Classification and Mapping )
VegCAMP (Vegetation Classification and Mapping )
mailing and physical
1700 9th Street, 4th Floor
Sacramento
CA
95811
US
(916) 324-9765
VegCAMP@wildlife.ca.gov
Lynn C. Sweet - (UC Riverside Center for Conservation Biology)- Project lead; photo interpretation, creation and description of polygons; classificaiton
Cameron W. Barrows - (UC Riverside Center for Conservation Biology)- Principal Investigator
Scott Heacox (UC-Riverside Center for Conservation Biology) - vegetation assessments coordinator,
Melanie Davis (UC-Riverside Center for Conservation Biology) - vegetation assessments
Robert F. Johnson (UC-Riverside Center for Conservation Biolgy) - GIS geodatabase originator
This map was prepared for publication in CDFW's Biogeographic Information and Observation System (BIOS) by CDFW Vegetation Classification and Mapping Program (VegCAMP) staff.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333
Vector
GT-polygon composed of chains
1214
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
ds2898
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
MapClassCode
The code for a vegetation association, alliance, group, unvegetated type, or land use for polygons that are not natural vegetation.
https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=102342&inline
MapClass
The finest level of vegetation type mapped (alliance, association, group or macrogroup); or land use for polygons that are not natural vegetation per the mapping classification.
https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=102342&inline
Shape
Feature geometry.
ESRI
Coordinates defining the features.
NVCSName
The standardized name of the vegetation description used in the 2008 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.
http://usnvc.org/
NVCSLevel
The standardized level of the vegetation description used in the 2008 National Vegetation Classification System (see http://usnvc.org/).
http://usnvc.org/
TreeCov
Quantitative estimate of the extent of a stand covered by living trees, measured using aerial imagery.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
0
none
1
>0-1%
2
>1-5%
3
>5-15%
4
>15-25%
5
>25-50%
6
>50-75%
7
>75-100%
9
NA
ShrubCov
Quantitative estimate of the extent of a stand covered by living shrubs, measured using aerial imagery.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
0
none
1
>0-1%
2
>1-5%
3
>5-15%
4
>15-25%
5
>25-50%
6
>50-75%
7
>75-100%
9
NA
HerbCov
Quantitative estimate of the extent of a stand covered by living herbaceous vegetation, measured using aerial imagery.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
1
0-2%
2
>2-15%
3
>15-40%
4
>40%
9
NA
Exotics
Code reflecting the level of impact by exotic invasive species.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
0
no exotics visible
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
1
exotic cover < 33%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
2
exotic cover < 66%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
3
exotic cover >66%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
9
NA
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
Roadedness
Roadedness Disturbance is defined as the level of impact in a polygon by paved and unpaved
roads, OHV trails, railroads, berms, and covered aqueduct. Impact is defined by the proportion
of any polygon that is contiguously without these features.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
0
none visible
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
1
low: > 2/3 unroaded
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
2
moderate: 1/3 - 2/3 unroaded
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
3
high: <1/3 unroaded
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
9
NA
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
Development
Development Disturbance accounts for the level of impact by structures and settlements that are smaller than the MMU criteria for land use. Structures may include buildings, tanks, trailers, metal electrical towers, communication towers, and utility and mining structures. This attribute includes paved parking lots and collapsed structures. Note that it also includes debris such as junked vehicles, major trash dumping, etc., the removal of which could result in a vegetation stand that could be in very good to pristine ecological condition.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
0
none visible
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
1
low: < 2%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
2
moderate: 3-5%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
3
high: > 5%
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
9
NA
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
AnthroAlteration
This indicates the level of impact on vegetation through tillage, scraping, grazing, mining, etc. Disturbance from structures, pavement, or debris is not included here but is addressed in Development Disturbance. Anthropogenically Altered Disturbance captures past disturbances in the landscape that are still visible through their impact on vegetation, but do not have enough of an impact to change the vegetation type or percent cover range.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
0
none visible
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
1
< 33% affected
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
2
33-66% affected
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
3
> 66% affected
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
9
NA
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=62826
hectares
Area of polygons measured in hectares.
ESRI
acres
Area of polygons measured in acres.
ESRI
Comments
Field for comments from mappers.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
AttributeBasis
Indicates whether attribution of the polygon was based on aerial imagery, information from the field, surveyed stands, etc.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
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.
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
http://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192
CalVegCode
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
http://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. See http://www.dfg.ca.gov/biogeodata/cwhr/
http://www.dfg.ca.gov/biogeodata/cwhr/
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/
http://www.dfg.ca.gov/biogeodata/cwhr/
GlobalRank
The national 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. 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. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf
NatureServe, https://www.natureserve.org/
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 statewide. Ranks S1-S3 are considered rare. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf
NatureServe, https://www.natureserve.org/
Rare
Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare.
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
NVCSAlliance
The standardized name for the alliance within the 2008 National Vegetation Classification System. See http://usnvc.org/
http://usnvc.org/
NVCSGroup
The standardized name for the group within the 2008 National Vegetation Classification System. See http://usnvc.org/
http://usnvc.org/
NVCSMG
The standardized name for the macrogroup within the 2008 National Vegetation Classification System. See http://usnvc.org/
http://usnvc.org/
Common_Name
The common name of the vegetation provided by UCR CCB.
http://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=174970
20221215
University of California, Riverside
Lynn Sweet
Associate Research Specialist
mailing and physical
75-080 Frank Sinatra Dr.
Palm Desert
CA
92211
US
760-834-0594
lynn.sweet@ucr.edu
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time