------------------------------------------------------------------------ Metadata for MOJVEG Table of Contents Identification_Information Abstract Purpose Supplemental Information Data_Quality_Information Spatial_Data_Organization_Information Entity_and_Attribute_Information Detailed Description Overview Distribution_Information Metadata_Reference_Section ------------------------------------------------------------------------ Identification_Information Citation_Information Originator: Paxton McClurg Publication_Date: 05/20/98 Title: Research Assistant Geospatial_Data_Presentation_Format: Arc/Info coverage Publication_Information Publication_Place: Publisher: Utah State Univ.- Geog. Dept. Description Abstract This dataset represents a compilation of the USGS Biological Resource Divisions Gap Vegetation database from California, Nevada, Arizona, and Utah. Each state had its own coding system, which presented a problem when joining the four databases into a single unit. Therefore, the vegetation for each state was recoded according to the Standardized National Vegetation Classification System standard code named "formation". All four states were appended. The vegetation mosaic is in ARC/INFO format and is projected to UTM zone 11, NAD83 datum, GRS1980 spheroid, and units are in meters. The mosaic includes a 50 km buffer region (Eastern Sierra, San Gabriel, and San Bernardino Mtns.), which greatly increases the vegetation diversity in this dataset. A table with vegetation descriptions from the NVCS is provided below. This is a relatively large and complex (polygon structure) database. In order for it to be able to display on standard PC systems with standard memory levels the coverage was intersected with a 1:100,000 quadrangle boundary layer. This reduced the number of vertices necessary to identify the larger polygons in the database thus allowing it to be displayed using a standard Pentium grade PC. Purpose Considering that the accuracy from the 4 different state vegetation datasets varies and the combined dataset had to be generalized under a new coding system, any applications that use this dataset should only be for general and broad- scale purposes. Its possible that mountain ranges, low elevation valleys, and other large landforms can be identified using this dataset. Its also possible to overlay this coverage with geology or soils coverages to determine relation- ships. Supplemental_Information Procedures_Used In 1996, Kathryn Thomas (USGS-BRD) worked with Utah State University to produce a mosaic of Mojave ecoregion vegetation, using GAP vegetation data from California, Nevada, Utah, and Arizona. The vegetation data had to be "cross-walked" over state boundaries and required a commmon coding system. The Final Draft Standardized National Vegetation Classification System (SNVCS) was used as a basis for defining formations. In the table the numbers and nomenclature follow the SNVCS except where indicated. In the draft, SNVCS alliances were indicated for the formations, although the list is far from complete for the southwest. These alliances were used as the first indication of what the formation contained and then placed the states in formations, using the state species descriptions to guide placement. The table reflects an application of SNVCS modified to the Mojave Ecoregion. In a couple of cases, new formations were identified and in others the types of alliances/series that occurred in a formation were rearranged. More categories could have been added to reflect mixed conifer types, but these were lumped together. For the herbaceous category, what constitutes the difference between a tall, medium tall, and short grass had to be estimated. Playas and associated vegetation were left out of the system. In 1998, Kathyrn Thomas took a revised SNVCS and modified it to the Mojave Ecoregion (see table below). "New Formations" are vegetation types that could not fall under any formations in the SNVCS table. One in particular is the Joshua Tree, a vegetation type unique to the Mojave. In spring 1998, an additional 50km buffer was added to the existing GAP vegetation map covering the Mojave Desert as defined by Robert Bailey. This was done in order to match other databases being created for the MDEP. The 1996 Mojave vegetation mosaic and GAP vegetation data from California, Nevada, Arizona, and Utah was used for this purpose. The portion of the buffer region that fell into non-Mojave California GAP regions (Sierra Nevada, San Gabriel and San Bernardino Mtns.) contained vegetation types not found in the 1996 Mojave vegetation mosaic. These vegetation types had to be classified according to the Kathyrn Thomas's modified coding system. Accuracy in some of the buffer regions is highly in question, particularly with oaks, chapparals, and riparian types. For simplification purposes, color-coding was generalized to the class and group level(see table). Colors were assigned to general classifications, such as open tree canopy, shrublands, broad-leaved, conifers, cold-deciduous, sub-desert, etc. Accuracy of color assignment is in question and should be reevaluated for any analyses that are as detailed as the formation level (see table above). Revisions 1)1996- Kathyrn Thomas (USGS-Biological Resources Division). Modification of SNVCS and Gap vegetation data from the 4 states to the Mojave ecoregion. 2)1998- Kathyrn Thomas- Modification of a revised SNVCS. 3)1998-Paxton McClurg (Utah State University - GIS Lab). Modification of SNVCS and Gap vegetation data from the 4 states to a 50 km buffer region around the Mojave ecoregion. Reviews_Applied_to_Data Unknown Related_Spatial_and_Tabular_Data_Sets Standardized National Vegetation Classification System Arizona Gap Vegetation California Gap Vegetation Nevada Gap Vegetation Utah Gap Vegetation References_Cited Bailey,R.G. 1983. Delineation of ecosystem regions. Environmental Management 7:365-373. Edwards, T.C.,Jr., C.G.Homer, and S.D.Bassett. 1994. Land management categorization: a users guide. A Handbook for Gap Analysis, USDI National Biological Survey, University of Idaho, Moscow. Graham, Lee,1996. Gapveg. University of Arizona, Tuscon. Holland,R.F.,1986. Preliminary descriptions of the terrestrial natural communities of California. State of California, The Resources Agency, Nongame Heritage Program, Dept. Fish & Game, Sacramento 156 pp. Homer, Collin G. 1996 Nevada Landcover Classification Metadata. Technical report, Utah Cooperative Fish and Wildlife Research Unit, Utah State University, Logan, UT. 180 pp. The Nature Conservancy and Environmental Systems Research Institute, 1994. Final Draft Standardized National Vegetaion Classification System, NBS/NPS Vegetation Mapping Program For: US Dept. of Interior, National Biological Survey and National Park Service. Thomas,K.A.,1996. Vegetation and Floristic Diversity in the Mojave Desert of California: A Regional Conservation Evaluation. Ph.D.dissertation, University of California, Santa Barbara. Currentness_Reference: 1) Nevada and Utah GAP vegetation - data from 1988 - 1992 Landsat TM images and DEM data (elevation, slope, aspect) were used as input for cluster analysis models within ecoregions predefined by Robert Bailey. Modifications unknown. Public access available through CD-ROM. Utah and Nevada codes mentioned in above table under equilavent state codes can be found on these CDs. 2) California GAP vegetation - data from 1980 - 1995 The Mojave Region vegetation database was developed using existing maps as baseline source data, including the East Mojave Resource Inventory from Southern California Edison, the BLM West Mojave map (Clark, personal communication) imagery, a current 1:150,000 road atlas (to identify areas of residential or industrial development), and extensive reconnaissance level field survey. The revisions made by the Bureau of Land Management for their Northern and Eastern a small part of the southern Mojave Desert region. The revisions were incorporated in the Sonoran Desert region. An accuracy check of a portion of the coverage was conducted using data obtained by the BLM during vegetation characterization studies in the east Mojave and a listing of one to four visually dominant species for the stand in which each transect placed was made. Each transect was not specifically georeferenced to a section (typically one square mile). A GIS coverage of all sections containing transects was overlain on the vegetation coverage and a listing of the cover types occurring within the sections was obtained. Visual dominant species were compared with Holland cover types (Holland, 1986) for each section and if the dominant species could be cross referenced to any of the Holland cover between 65% and 100%. In the table above, under equivalent state codes, the CA code (ie.CA 62200) refers to the California Natural Diversity Data Base (Holland, 1986). For detailed descriptions of these codes, refer to http://www.biogeog.ucsb.edu/projects/gap/data/meta/landcovdd.html and select "Metadata Reference Information". This is CA GAP Veg.s home page. 3) Arizona GAP vegetation - This file is temporarily not in distribution because of known errors. It is currently being modified by The Arizona Land Resource Information System (ALRIS). Refer to http://www.state.az.us/gis3/alris/alrishome.html and select GIS data. 4) Standardized National Vegetation Classification System - 1994 - produced for USGS-NPS. Refer to http://www.its.nbs.gov:8000/npsveg/ classification.html for detailed information. Maintenance_and_Update_Frequency: Unknown Access_Constraints: N/A Data_Set_Credit: Kathryn Thomas, Ph.D. Colorado Plateau Research Station, USGS-BRD P.O. Box 5614, Flagstaff, Arizona 86011 520 556-7466, x235; FAX 520 556-7500 Completeness_Report: As mentioned previously, the vegetation data had to be generalized under a common coding system in order to combine the 4 state datasets. Horizontal_Positional_Accuracy_Report: Unknown Vertical_Positional_Accuracy_Report: Unknown Cloud_Cover: N/A Notes Time_Period_of_Content Range_of_Dates/Times Beginning_Date: unknown Ending_Date: 5/15/98 Currentness_Reference Status Progress: Complete Maintenance_and_Update_Frequency Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -118.98095786 East_Bounding_Coordinate: -112.28205518 North_Bounding_Coordinate: 37.78898735 South_Bounding_Coordinate: 33.20217262 Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: NVCS, GAP, CNDDB Place Place_Keyword_Thesaurus: None Place_Keyword: Mojave Desert Ecoregion as defined by Bailey (1993) plus a 50 km buffer Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword: Access_Constraints Use_Constraints Scale (1:250,000) and accuracy is a major limitation for the use of this data. Data_Set_Credit Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 7.1.1 Cross_Reference Originator: Kathryn Thomas, Ph.D. Publication_Date: 1996 Publication_Time: Title: Research Scientist Edition: Geospatial_Data_Presentation_Form: Arc/Info coverage Series_Information Series_Name: Issue_Identification: Publication_Information Publication_Place: Flagstaff, AZ Publisher: USGS-BRD Other_Citation_Details: Online_Linkage: Larger_Work_Citation: NVCS ------------------------------------------------------------------------ Data_Quality_Information Attribute_Accuracy Attribute_Accuracy_Report: See Entity_Attribute_Information Quantitative_Attribute_Accuracy_Assessment Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Logical_Consistency_Report: Polygon topology present. Completeness_Report Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report: Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 250 hectare Horizontal_Positional_Accuracy_Explanation: Resolution as reported Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: Lineage: See Supplemental_Information for overview. Process_Steps Process_Step Process_Description: MOJAVE PROJECT COVER FINVEG21 FINVEG22 Source_Used_Citation_Abbreviation:None Process_Date: 19980520 Process_Time: 1818 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE BUILD FINVEG22 Source_Used_Citation_Abbreviation:None Process_Date: 19980520 Process_Time: 1920 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE ARCEDIT /AUTO/JUAB1/MOJAVE/FINVEG22 Source_Used_Citation_Abbreviation:None Process_Date: 19980521 Process_Time: 1112 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT FINVEG22 CREATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980529 Process_Time: 1746 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE COPY FINVEG22 MOJVEG Source_Used_Citation_Abbreviation:None Process_Date: 19980618 Process_Time: 1122 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT MOJVEG UPDATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980618 Process_Time: 1717 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT MOJVEG UPDATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980619 Process_Time: 1613 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT MOJVEG UPDATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980621 Process_Time: 2322 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT MOJVEG UPDATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980621 Process_Time: 2337 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MOJAVE DOCUMENT MOJVEG UPDATE MOJAVE Source_Used_Citation_Abbreviation:None Process_Date: 19980622 Process_Time: 1037 Source_Produced_Citation_Abbreviation: None Cloud_Cover ------------------------------------------------------------------------ Spatial_Data_Organization_Information Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 8446 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 36207 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains' Point_and_Vector_Object_Count: 16614 ------------------------------------------------------------------------ Spatial_Reference_Information Horizontal_Coordinate_System_Definition Planar Grid_Coordinate_System Grid_Coordinate_System_Name: Universal_Transverse_Mercator (UTM) Zone_Number: 11 Planar_Distance_Units: METERS Geodetic Model Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 ------------------------------------------------------------------------ Entity_and_Attribute_Information Detailed_Description Entity_Type Entity_Type_Label: MOJVEG.PAT Entity_Type_Definition: Recoded GAP (4 states) vegetation data Entity_Type_Definition_Source: NVCS (National Vegetation Classification System) Attribute: Attribute_Label: - Attribute_Definition: Recoded GAP (4 states) vegetation data Attribute_Definition_Source: NVCS (National Vegetation Classification System) Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREA Attribute_Definition: Area of poly/region in square coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of poly/region in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MOJVEG# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MOJVEG-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MOJAVE-CODE Attribute_Definition: Recoded GAP (4 states) vegetation data Attribute_Definition_Source: Kathryn Thomas, USGS-BRD, Flagstaff, AZ Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: FORMATION Attribute_Definition: Lowest level for this particular vegetation classification Attribute_Definition_Source: SNVCS (Standardized National Vegetation Classification System) Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Text Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: COLOR Attribute_Definition: Color codes divided by groups - Higher and wetter is greener or bluer Attribute_Definition_Source: Paxton McClurg - Utah State University, SNVCS Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: text Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Overview_Description Entity_and_Attribute_Overview Table from SNVCS (modified by Kathyrn Thomas, USGS-BRD) Mojave NVCS Class Subclass Group Formation Gap Veg Type Code Code New IA4Ca Closed Ever- Cultivated, CA 11401 (Conifer for- Tree green Plantation plantation) ma- Canopy Forest tion 1 1A4Na Closed Ever- Temperate Lowland CA 62300 (Desert Fan Tree green broad-leaved temperate Palm Oasis Woodland) Canopy Forest seasonal seasonal evergreen evergreen closed closed tree tree canopy canopy new IA4Nb Closed Ever- Temperate Submontane CA 81320 (Canyon for- Tree green broad-leaved termperate Live Oak Forest); CA ma- Canopy Forest seasonal seasonal 81330 (Interior Live tion evergreen evergreeen Oak Forest) closed tree closed tree canopy canopy 2 1A8Nb Closed Ever- Temperate or Rounded-crowned NV 41 (Bristlecone Tree green subpolar temperate or Forest) UT3 Canopy Forest needle-leaved subpolar needle- (Ponderosa Forest) evergreen leaved evergreen AZ 18 (Ponderosa closed tree closed tree Pine/Pinyon- canopy canopy Juniper); CA 85100 (Jeffrey Pine Forest) 3 1A8Nc Closed Ever- Temperate or Conical-crowned NV 42 (White fir)UT Tree green subpolar temperate or 5 (Mountain fir) Canopy Forest needle-leaved subpolar needle- evergreen leaved evergreen closed tree closed tree canopy canopy new IB2Na Closed Decidu- Cold-deciduous Lowland or CA 81340(Black Oak for- Tree ous closed tree submontane cold- Forest) ma- Canopy closed canopy deciduous closed tion tree tree canopy canopy 4 1B2Nb Closed Decidu- Cold-deciduous Montane or NV 37 (Aspen)UT 10 Tree ous closed tree boreal cold- (Aspen); CA 81B00 Canopy closed canopy deciduous closed (Aspen Forest) tree tree canopy canopy 5 1B2Nd Closed Decidu- Cold-deciduous Temporarily AZ 95 (Cottonwood- Tree ous closed tree flooded cold- Willow Forest) Canopy closed canopy deciduous closed tree tree canopy canopy 6 1C3Na Closed Mixed Mixed needle- Mixed needle- AZ 17 (Ponderosa Tree evergre- leaved leaved Pine-Gambel Oak- Canopy en- evergreen-cold- evergreen-cold- Juniper/Pinyon- deciduo- deciduous deciduous Juniper us closed tree Complex)CA71410 closed canopy (Digger Pine-Oak tree Woodland) canopy 7 IIA2Na Open Tree Ever- Temperate Temperate broad- AZ21 (Encinal Mixed Canopy green broad-leaved leaved evergreen Oak); CA 71150 open evergreen open open tree canopy (Interior Live Oak tree tree canopy Forest); CA 71140 canopy (Blue Oak Woodland); CA 71150 (Interior Live Oak Woodland) 8 IIA4Na Open Tree Ever- Temperate or Rounded-crowned NV 3,4CA 86400 Canopy green subpolar temperate or (Bristlecone open needle-leaved subpolar needle- Pine)NV18, 1 tree evergreen open leaved evergreen canopy tree canopy open tree canopy 9 IIA4Nc Open Tree Ever- Temperate or Cylindrical- NV 5,6 (White Fir)UT Canopy green subpolar crowned 24 (Mountain open needle-leaved temperate or Fir/Mountain Shrub) tree evergreen open subpolar needle- canopy tree canopy leaved evergreen open tree canopy 10 IIB2Na Open Tree Decidu- Cold-deciduous Cold-deciduous NV 37 (Aspen), UT10 Canopy ous open open tree open tree canopy (Aspen); CA 71210 tree canopy (California Walnut canopy Woodland); CA 71120 (Black Oak Woodlands); CA 71130 (Valley Oak Woodlands); Ut 11 (Oak); NV 33 (Ash) 11 IIB2Nb Open Tree Decidu- Temperate or Temporarily CA 61700 (Mojave Canopy ous open subpolar flooded cold- Riparian tree needle-leaved deciduous open forest)CA61610 canopy evergreen open tree canopy (Modoc Great Basin tree canopy Cottonwood Willow Riparian Forest)UT 27 (Lowland Riparian)NV 21 (Mojave Riparian) 12 IIB3Na Open Tree Decidu- Extremely Thorn extremely CA 61820 (Mesquite Canopy ous open xeromorphic xeromorphic Bosque)AZ 97 tree deciduous open deciduous open (Mesquite Bosque canopy tree canopy tree canopy Forest); AZ 102 (Cottonwood- Mesquite) 13 redis- trib- uted 14 IIIA2Nc Shrub land Temper- CA 37A00 (Interior ate Live Oak broad- Chaparral),CA 37200 leaved (Chamise ever- Chaparral),CA 37400 green (Semi- desert shrub Chaparral)AZ 28 land 15 IIIA4Na Shrub land Ever- Microphyllous Microphyllous CA 35213 ( Black green evergreen shrub evergreen shrub Sagebrush)CA shrub land land 35210(Big Sagebrush land Scrub)AZ 43 16 IIIA5Na Shrub land Ever- Extremely Broad-leaved/ CA 33100 ( Sonoran green xeromorphic microphyllous Creosote Bush shrub evergreen shrub evergreen Scrub)CA 34100 land land extremely (Mojave Creosote xeromorphic Bush Scrub)AZ 54 subdesert shrub (Creosote Bush land Scrub)AZ 55 (Creosotebush- Bursage Scrub)AZ 56 (Creosote-Yucca spp.Scrub)AZ 60 (Brittlebush- Creosotebu 17 IIIB2Na Shrub land Decidu- Mixed evergreen Mixed evergreen- NV22 (Mountain ous - cold- cold-deciduous Shrub)UT 13 Shrub deciduous shrub shrub land (Mountain Shrub); CA land land 35500 (Curlleaf Mahogany) 18 IIIB2Nf Shrub land Decidu- Mixed evergreen Seasonally NV 44 (Mountain ous - cold- flooded mixed Riparian)UT 26 Shrub deciduous shrub evergreen - (Mountain Riparian) land land cold-deciduous shrub land 19 IIIB3Na Shrub land Decidu- Extremely Extremely CA 36130 ( ous xeromorphic xeromorphic Greasewood Scrub)NV Shrub deciduous shrub deciduous 29(Greasewood)NV 25 land land subdesert shrub (Hopsage)UT 36 land without (Greasewood) succulents 20 IIIB3Nb Shrub land Decidu- Extremely Intermittently CA 63820 (Arrowweed ous xeromorphic flooded Scrub)CA 63300 Shrub deciduous shrub extremely (Southern Riparian land land xeromorphic Scrub)AZ 104 (Mixed subdesert shrub Riparian Scrub)AZ land without 106 (Low-lyin succulents 21 IIIC3Na Shrub land Mixed Extremely Extremely CA 34240 (Mixed evergre- xeromorphic xeromorphic Mojave Woody and en- mixed deciduous Succulent Scrub); CA deciduo- evergreen- subdesert shrub 33200 (Sonoran us shrub deciduous shrub land Desert Mixed Scrub); land land CA 39000 (Upper Sonoran Subscrub Scrub) 22 IIIC3Nb Shrub land Mixed Extremely Mixed evergreen- AZ 78 (Crucifixion evergre- xeromorphic deciduous Thorn Scrub);AZ 79 en- mixed subdesert shrub (Smoketree Scrub);AZ deciduo- evergreen- land 80 (Catclaw Acacia us shrub deciduous shrub scrub);NV 35 land land (Mesquite); AZ 62 (Mojave Catclaw Acacia Mixed Scrub) 23 IIIB3Nb Shrub land Decidu- Extremely Intermittently CA 62200 (Desert Dry ous xeromorphic flooded Wash Woodland)CA Shrub deciduous shrub extremely 63700 (Mojave Desert land land xeromorphic Wash Scrub)AZ 103 deciduous (Leguminous short- subdesert shrub Tree land Forest/Shrubland) 24 IIIA5Nb Shrub land Ever- Extremely Facultatively CA 3611 green xeromorphic deciduous shru- evergreen shrub extremely bland land xeromorphic subdesert New IIIC2Na Shrub land Mixed Mixed evergreen Mixed evergreen CA 35100 (Great for- evergre- - cold- - cold-deciduous Basin Mixed Scrub); ma- en- deciduous shrubland AZ 51 (Great Basin tion deciduo- shrubland Winterfat Mixed us shrub Scrub) land New IIIC3Na Shrub land Mixed Extremely for- evergre- xeromorphic ma- en- mixed tion deciduo- evergreen- us shrub deciduous shrub land land 25 IIIC3Nb Shrub land Mixed Extremely Mixed evergreen CA 34210 (Mojave evergre- xeromorphic - deciduous Mixed Woody Scrub) en- mixed subdesert shrub deciduo- evergreen- land us shrub deciduous shrub land land New IIIA5Ne Shrub land Ever- Extremely Extremely AZ 63 (Joshuatree); for- green xeromorphic xeromorphic CA 73000 (Joshua ma- shru- evergreen evergreen Tree Woodland); tion bland shrubland shrubland with sparse tree layer New IVA1 Dwarf Eergreen Needle-leaved CA 94000 (Alpine for- shrubland dwarf- or Dwarf Scrub) ma- shrubla- microphyllous tion nd evergreen dwarf-shrubland 26 types redis- trib- uted 27A VA6Nj Herbaceous Peren- Temperate or Intermittently AZ 35 (Mixed Grass- vegetation nial subpolar flooded Mixed Scrub)AZ 37 grami- grassland with temperate or (Mixed Grass- noid a sparse tree subpolar Saltbush)NV vegeta- layer grassland with 23(Sagebrush/Perenn- tion sparse needle- ial Grass)UT 15 leaved evergreen (Sagebrush/Perennial tree layer Grass) 27B VA6Nk Herbaceous Peren- Temperate or Temporarily AZ 35 (Mixed Grass- vegetation nial subpolar flooded Mixed Scrub)AZ 37 grami- grassland with temperate or (Mixed Grass- noid a sparse tree subpolar Saltbush)NV vegeta- layer grassland with 23(Sagebrush/Perenn- tion sparse broad- ial Grass)UT 15 leaved evergreen (Sagebrush/Perennial tree layer Grass) 28 VA7Ne/f Herbaceous Peren- Temperate or Medium-tall CA 34220 (Mojave Vegetation nial subpolar temperate or Mixed Steppe)AZ grami- grassland with subpolar 42(Semidesert Mixed noid a sparse shrub grassland with Grass-Mixed Scrub)UT vegeta- layer sparse needle- 33 (Desert tion leaved or Grassland); AZ 39 microphyllous (Semidesert Tobosa evergreen shrub Grass-Scrub) layer/Medium- tall temperate or subpolar grassland with sparse drought- deciduous shrub layer 29 VA5Nl Herbaceous Peren- Temperate or Semipermanently AZ 107 ( Reed- Vegetation nial subpolar flooded Cattail Marsh)UT38 grami- grassland temperate or (Wetland)NV 43 noid subpolar (Wetland)CA 52420 vegeta- grassland (Transmontane tion Freshwater Marsh);CA 52320 (Transmontane Alkali Marsh) 30 VA5Nd Herbaceous Peren- Temperate or Medium-tall CA 42160 (Desert Vegetation nial subpolar bunch temperate Native grami- grassland or subpolar Grassland)NV27 noid grassland (Grassland)UT 16 vegeta- (Grassland) tion 31 VA5Nk Herbaceous Peren- Temperate or Seasonally UT 19 (Wet meadow); Vegetation nial subpolar flooded CA 45310 (Alkali grami- grassland temperate or Meadow) noid subpolar vegeta- grassland tion 32 Moved to 29 33 VD2Nd Herbaceous Annual Temperate or Short temperate CA 42200 (Non-Native Vegetation grami- subpolar annual annual grassland Grassland) noid or grasslands or forb forb vegetation vegeta- tion 34 VB2Nb Herbaceous Peren- Temperate or Low temperate or NV 24 (Alpine)UT 17 Vegetation nial subpolar subpolar (Alpine) forb perennial forb perennial forb vegeta- vegetation vegetation tion 35 VD2Nc Herbaceous Annual Temperate or Low desert or CA 42300 (Wildflower Vegetation grami- subpolar annual subdesert Field) noid or grasslands or ephemeral or forb forb vegetation episodic annual vegeta- forb vegetation tion New VIIB1 Sparse Boulder, Sparsely CA 91120 (Sierra for- vegetation gravel, vegetated Nevada Fell-Field) ma- cobble, talus/scree tion or talus slopes sparse vegeta- tion 36 VIIC1Na Sparse Uncon- Sparsely NV 32 (Sand Dunes)Ca vegetation soli- vegetated sand 22200 ( Dunes and dated dunes Sand Fields) material sparse vegeta- tion 37 VIIC4Nb Semiperma- Uncon- Sparsely Intermittently NV 30 (Playas)CA nently soli- vegetated soil flooded mud 36120, 46000 flooded dated flats flats (Deserting Scrub, temperate material Alkali Playa)UT 37 or sparse (Pickleweed subpolar vegeta- barrens)AZ 86 grassland tion (Playa/Semipermanent Water) 38 Urban CA 11100 (Urban)NV 40 (Urban, includes mining which occurs in barren in CA.)AZ83, 84 (Urban/Industrial)UT 31 (Urban) 39 Agriculture CA 11200 (Agriculture);NV 39 (Agriculture);UT 30 (Agriculture);AZ 82,85 (Agriculture; MixedAgriculture/Ur- ban/Industrial); CA 22300 40 Water CA 11510, 11520 (Stream/River, Lake)NV1, 34 (Water/Shallow water)UT 1(Water);AZ 87 (Water) 41 Barren CA 11710, 11750,11770 (Dry Salt Flat,Quarry, Mixed Barren Land)NV 2(Barren)UT 20 (Barren )UT 29 (Lava) 42 Dis- CA 63810 (Tamarisk turbed, Scrub) inva- sive exotics