http://www.dlwc.nsw.gov.au/care/wetlands/facts/wetland_type....
Any freshwater wetland occurring on coastal sand dunes or plains. Dunal wetlands include lakes, lagoons, shallow vegetated basins, heaths and forests.

retro-dunal
l'ho trovato soltanto in siti tradotti dall'italiano

Back-barrier dunes ?
http://www.uwec.edu/academic/curric/jolhm/research/wenell/nc...

Il mio suggerimento viene dal sito qui riportato
http://www.isu.edu/avcat/av43.html
OREGON DUNES, THE 03103
The Oregon Dunes, a land of magnificent sand dunes, lakes, forested areas and ocean beaches is one of Oregon's outstanding natural phenomena. The Dunes consist of a narrow strip along the Pacific Ocean 40 miles long and 1/2 to 2 1/2 miles wide. They are unique to the west coast and include dunes unlike those found anywhere else in the world. Includes an analysis of how the dunes got there, the several types of dunes and dunal geography found there and emphasizes their dynamic nature. It concludes with a brief examination of how man uses the dunes.

saluti

paola l m