Halofitna vegetacija ob slovenski morski obali: Thero-Salicornietea in Spartinetea maritimae

Halophile vegetation of the Slovenian sedimentary seacoast have been sampled with the standard Braun- Blanquet procedure. All the 140 collected relevés have been classified using the SYN-TAX 2000 software. The resulting dendrogram separated 5 well-defined clusters, characterized by different dominant species. Two well separated clusters have been further elaborated in this study. The floristically-poor association Suaedo maritimae-Salicornietum patulae Brullo et Funari ex Géhu et Géhu Franck 1984 tend to form monodominate stands with Salicornia europaea s.l. on mudflat hypersaline stands. The association Suaedo maritimae-Bassietum hirsutae Br.-Bl. 1928, with high abundance of Suaeda maritima occupy smaller surfaces on drier stands. Both were classified within halophile annual swards of the class Thero-Salicornietea. Spartina maritima-dominated perennial halophyte saltmarshes are represented with association Limonio-Spartinetum maritimae (Pignatti 1966) Beeft. et Géhu 1973 (class Spartinetea maritimae), which colonizes muddy islets, perturbed by high tide and sea turbulence and supports brackish water, which should be rich in nutrients.S standardno Braun-Blanquetovo metodo smo vzorčili halofitno vegetacijo na sedimentni morski obali v Sloveniji. Vseh 140 zbranih popisov je bilo klasificiranih s pomočjo programa SYN-TAX 2000. Nastali dendrogram je ločil 5 dobro definiranih šopov, okarakteriziranih z različnimi dominantnimi vrstami. Dva dobro ločena šopa sta bila nadalje obdelana v tej študiji. Floristično revna asociacija Suaedo maritimae-Salicornietum patulae Brullo et Funari ex Géhu et Géhu Franck 1984 teži h graditvi enovrstnih sestojev z vrsto Salicornia europaea s. l. na muljastih hipersalinih rastiščih. Asociacija Suaedo maritimae-Bassietum hirsutae Br.-Bl. 1928 z visoko abundanco vrste Suaeda maritima zaseda manjše površine na bolj suhih rastiščih. Obe smo uvrstili v razred halofitnih enoletnic Thero-Salicornietea. Obmorska močvirja z dominantno vrsto Spartina maritima predstavljajo asociacijo Limonio-Spartinetum maritimae (Pignatti 1966) Beeft. et Géhu 1973 (razred Spartinetea maritimae), ki kolonizira muljaste otočke, izpostavljene plimovanju in valovanju, in dobro prenašajo brakično vodo, ki mora biti bogata s hranili