translate English to French: Although Delta Marsh borders fertile agricultural land, it is considered naturally eutrophic and not degraded by human activity.
Les quatre plantes émergentes dominantes dans le marais sont le phragmite commun (Phragmites australis), la scolochlée (Scolochloa festucacea), la quenouille glauque (Typha glauca) et le scirpe lacustre (Scirpus lacustris) (Squires et Vander Valk 1992).