Raw urban street tree inventory data for 49 California cities

Metadata:

Identification_Information
Data_Quality_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Data_Quality_Information:

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:: This data publication contains 50 data files and 1 supplemental file. Below you will find a detailed description of these files and their contents.

DATA FILES

\DATA\Street_species_codes.csv: Comma-delimited ASCII text file containing a list of i-Tree Streets species, codes, scientific names, and common names for trees found in each climate zone. These species codes are used in the inventory data. Below is a list of variables included in this file.

ClimateZone = Name of climate zone (InlandEmpire = Inland Empire, InlandValley = Inland Valley, NorCalCoast = Northern California Coast, SoCalCoast = Southern California Coast, and SWDistrict = Southwest Desert; see Brenzel 1997).

SpeciesCode = 4 to 6 letter code consisting of the first two letters of the genus name and the first two letters of the species name. Some four-letter codes are followed by a number to distinguish two species with the same code.

ScientificName = Scientific name of species.

CommonName = Common name of species.

TreeType = 3 letter code where the first two letters refer to life form (BD=broadleaf deciduous, BE=broadleaf evergreen, CE=coniferous evergreen, PE=palm evergreen) and the third letter is mature height (S=small which is < 8 meters, M=medium which is 8-15 meters, and L=large which is > 15 meters).

SppValueAssignment = Species assigned value, which was used when a species in the street tree inventory was not one for which growth equations were derived. Such a species was assigned a species of the same genus with similar growth characteristics for which growth equations were derived. For an inventoried species for which there were no matches based on genus, a species was assigned based on the nearest mature height and crown diameter.

\DATA\*CLIMATE ZONE*\*CITYNAME*_Inventory.csv: 49 comma-delimited ASCII text files containing raw urban tree inventory data for the specified city. These street tree data were collected between 2006 and 2013. At a minimum the file includes, a unique ID for each tree, species code, diameter at breast height, street name and address. Optional variables include, botanic and common name, and tree type. The data files are provided in a folder based on the *CLIMATE ZONE* (InlandEmpire, InlandValley, NorCalCoast, SoCalCoast, SWDistrict) that city is in. Below is a list of variables included in most of these files.

Id.x = Number assigned to each tree in the inventory by city.

SpsCode = 4 to 6 letter code consisting of the first two letters of the genus name and the first two letters of the species name. Some four-letter codes are followed by a number to distinguish two species with the same code. Species names are defined in \Data\Street_species_codes.csv.

DBH = Diameter of tree at breast height (4.5 feet) defined by categories. (1 is 0-6 inches, 2 is 6-12 inches, 3 is 12-18 inches, 4 is 18-24 inches, 5 is 24-30 inches, and 6 is > 30 inches).

StreetName = Name of the street the tree is located on, from inventory.

StreetNumber = Street number of building where tree is located, from inventory.

City = City name where data were collected.

OPTIONAL VARIABLES THAT ARE INCLUDED IN SOME DATA FILES:
Botanic Name = Scientific name of species.

Common name = Common name of species.

Tree Type = 3 letter code where the first two letters refer to life form (BD=broadleaf deciduous, BE=broadleaf evergreen, CE=coniferous evergreen, PE=palm evergreen) and the third letter is mature height (S=small which is < 8 meters, M=medium which is 8-15 meters, and L=large which is > 15 meters).

SUPPLEMENTAL FILES

\SUPPLEMENTS\species_alternate_taxonomic_source.csv: Comma-delimited ASCII text file containing a list of species whose taxonomy was not available at https://www.itis.gov. This file contains a list of those species, the taxonomic source, and the taxonomic hierarchy. Below is a list of variables included in this file.

Species = Name of species that was not found at https://www.itis.gov at the time of publication.

Author notes = Notes provided by the author to explain any issues in the data files or issues finding the taxonomy.

Source URL = URL for the source from which the taxonomy was found for this species.

Kingdom = Kingdom of species.

Subkingdom = Subkingdom of species.

Infrakingdom = Infrakingdom of species.

Superdivision = Superdivision of species.

Division = Division of species.

Subdivision = Subdivision of species.

Phylum = Phylum of species.

Subphylum = Subphylum of species.

Class = Class of species.

Subclass = Subclass of species.

Superorder = Superorder of species.

Order = Order of species.

Family = Family of species.

Subfamily = Subfamily of species.

Genus = Genus of species.
Entity_and_Attribute_Detail_Citation:: McPherson, E. Gregory; van Doorn, Natalie; de Goede, John. 2016. Structure, function and value of street trees in California, USA. Urban Forestry & Urban Greening 17: 104-115. https://doi.org/10.1016/j.ufug.2016.03.013

Brenzel, K.N., ed. 1997. National Garden Book. 1st ed. Sunset Books, Inc., Menlo Park, CA. 656 pp.(ISBN: 978-0376038609)

Distribution_Information:

Metadata_Reference_Information:

Metadata_Date: 20170815

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Greg McPherson
Contact_Organization: USDA Forest Service, Pacific Southwest Research Station

Contact_Position: Research Urban Forester

Contact_Address:

Address_Type: mailing and physical
Address: 1731 Research Park Dr.
City: Davis
State_or_Province: CA
Postal_Code: 95618
Country: USA

Contact_Voice_Telephone: 530-759-1734

Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001.1-1999