Editing Koog (section)

== ''Groden'' ==
The term ''groden'' (cf. the English verb "to grow") used in [[Lower Saxony]], particularly in  the eastern part of East Frisia and in the [[Oldenburg Land]], refers to new areas of land washed up by the sea. Sediments are deposited by the sea on [[mud flat]]s when the [[tide]]s change. After reaching a certain height, the land is dyked. Dyked land becomes ''innengroden''. As a result of draining the fertile soil compacts and, over time, can sink until it is below sea level. The rising sea level in front of the dyke and the sinking of the old, now drained, sea areas behind the dyke leads to further dykes being built at an ever-higher level to enclose the newly dyked areas of marsh. In this way a so-called "polder staircase" is formed.<ref>[http://www.nationalpark-wattenmeer.de/sites/default/files/media/pdf/_klimapfad_broschuere_klein.pdf Klimapfad Sande, Seite 22] {{Webarchive|url=https://web.archive.org/web/20151215052140/http://www.nationalpark-wattenmeer.de/sites/default/files/media/pdf/_klimapfad_broschuere_klein.pdf |date=2015-12-15 }} (pdf; 1.5&nbsp;MB), retrieved 20 May 2013</ref>

The name ''groden'' is found for example in the borough of [[Wilhelmshaven]] in the villages of Altengroden, [[Neuengroden]] and [[Fedderwardergroden]], the [[Heppenser Groden Naval Base|Heppenser]], Voslapper and Rüstersieler Groden, and in the surrounding area are the [[Cäciliengroden]], Petersgroden and Adelheidsgroden. All these areas, whether they emerged more recently (i.e. in the 20th century) or in older times, were formed as a result of dyke enclosure and ''Aufspülung'', as is often the case with polders.

: → ''See also [[salt marsh]]''