From the post:
The AGROVOC Team is pleased to announce the release of the AGROVOC 2013 edition.
The updated version contains 32,188 concepts in up to 22 languages, resulting in a total of 626,211 terms (in 2012: 32,061 concepts, 625,096 terms).
Please explore AGROVOC by searching terms, or browsing hierarchies.
AGROVOC 2013 is available for download, and accessible via web services.
From the “about” page:
The AGROVOC thesaurus contains 32,188 concepts in up to 22 languages covering topics related to food, nutrition, agriculture, fisheries, forestry, environment and other related domains.
A global community of editors consisting of librarians, terminologists, information managers and software developers, maintain AGROVOC using VocBench, an open-source multilingual, web-based vocabulary editor and workflow management tool that allows simultaneous, distributed editing. AGROVOC is expressed in Simple Knowledge Organization System (SKOS) and published as Linked Data.
Need some seeds for your topic map in “…food, nutrition, agriculture, fisheries, forestry, environment and other related domains”?