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naltExample of resource
Ontologies
NALT
General information
Abstract
The thesaurus is organized into 17 subject categories, indicated by the "Subject Category" designation. The subject categories are used to browse the Thesaurus in a specific discipline or subject area.
The subject scope of agriculture is broadly defined in the thesaurus, and includes terminology in the supporting biological, physical and social sciences. Biological nomenclature comprises a majority of the terms in the thesaurus and is located in the “Taxonomic Classification of Organisms” Subject Category. Political geography is mainly described at the country level.
Description
The Thesaurus is an online vocabulary of agricultural terms in English and Spanish and is cooperatively produced by the National Agricultural Library, USDA and the Inter-American Institute for Cooperation on Agriculture as well as other Latin American agricultural institutions belonging to the Agriculture Information and Documentation Service of the Americas (SIDALC). The NAL Agricultural Thesaurus (NALT) was first published in 1967 and converted to SKOS in 2019 then released by the National Agricultural Library in 2002, with in-depth coverage of agriculture, biology, and related disciplines. The Spanish language version of NALT was first published in May 2007 under the Spanish language name "Tesauro Agrícola", and was created in cooperation with the Inter-American Institute for Cooperation on Agriculture (IICA) and other Latin American agricultural institutions belonging to the Agriculture Information and Documentation Service of the Americas (SIDALC). In 2022 NALT was redesigned as part of the Library's "NALT for the Machine Age" initiative, and is a state-of-the-art multischeme concept space with added structural features for enhanced scalability and machine readability. Inaugural schemes included NALT Core, and NALT Full., The NAL Agricultural Thesaurus (NALT) was first released by the National Agricultural Library in 2002
Initial created on
April 17, 2023.
For additional information, contact
Sujata Suri (sujata.suri@ars.usda.gov) and Jennifer Woodward (jennifer.woodward@usda.gov).
Languages
Categories and subjects
Metrics
Ontology relations network
Submissions
Identifiers
URI
StagePortal URI
Dates
Creation date
April 17, 2023
Validity date
December 31, 2024
Submission date
February 7, 2023
Modification date
February 9, 2024
Persons and organizations
Contact
Contributor
Publisher
Other links
Indexed or included in catalog or repository
Projects and usage information
Known usage
The thesaurus is primarily used for indexing and for improving retrieval of agricultural information. Currently, the thesaurus is the indexing vocabulary for the National Agricultural Library's bibliographic database of citations to agricultural resources, AGRICOLA. The Food Safety Research Information Office (FSRIO) and Agricultural Network Information Center (AgNIC) also use the NALT as the indexing vocabulary for their information systems. In addition, the NALT is used as an aid for locating information at the Agricultural Research Service, Economic Research Service and AgNIC web sites and databases.Designed for task (as defined by OMV).
Coverage
In depth coverage of agriculture, biology and related disciplinesExample of use
local:NAL Thesaurus is used to select controlled vocabulary terms for subject indexing of AGRICOLA, PubAg and other databases.Methodology and provenance
Created with
otherAccrual periodicity
Updated annually by the National Agricultural Library (NAL)Community
Mailing list
Notes
Redesigned for the machine age as part of the Library's "NALT for the Machine Age" initiative, NALT 2024 is a state-of-the-art multischeme concept space with added structural features for enhanced scalability and machine readability.Content