A syntaxon thesaurus file stores a pool of syntaxonomic items, arranged
in a hierarchical way. Each <syntaxon/>
tag can have other nested syntaxa. This syntaxa information can be used
from relevé data, because there exist the <original_syntaxon/>
and <current_syntaxon/>
in the <releve/>
(See Releve Table file). Thus, one
can select just those relevés belonging to a specific syntaxonomical
unit.
Syntaxon thesaurus files have XML file format. In each file there is
just one <syntaxon_pool>
tag, which can contain an unlimited number of syntaxa.
Syntaxon
Thesaurus file example

Syntaxon Thesaurus
tags
<syntaxon_pool/>
: Each thesaurus files contains just one syntaxon pool. In turn, this
<syntaxon_pool/>
is the parent tag for as many <syntaxon/>
tags as needed.
<syntaxon/>
: Describes a syntaxon. Each syntaxon tag contains as many syntaxon
subtags as needed according to its children syntaxa. The attributes
for a syntaxon tag are:
1) name: the syntaxon name.
2) namecode: code for this syntaxon name, which is unique.
3) icode: internal code which can join synonym syntaxa.
4) level, the syntaxonomical level: Class, Order, Alliance,
Sub-alliance, Association, Sub-association, Facies.
<author/>
: Describes the authorship of the syntaxon name. Just one author field
is stored for each syntaxon.