What is "hauberg"

Hauberk \Hau"berk\ (h[add]"b[~e]rk), n. [OF. hauberc, halberc, F. haubert, OHG. halsberc; hals neck + bergan to protect, G. bergen; akin to AS. healsbeorg, Icel. h[=a]lsbj["o]rg. See Collar, and Bury, v. t.] A coat of mail; especially, the long coat of mail of the European Middle Ages, as contrasted with the habergeon, which is shorter and sometimes sleeveless. By old writers it is often used synonymously with habergeon. See Habergeon.
--Chaucer.

Helm, nor hawberk's twisted mail.
--Gray.

Hauberg is a type of communal forest management that is typical of the Siegerland and adjacent parts of the Lahn-Dill Uplands and the Westerwald in central Germany. Its aim is to manage the forest in order to produce tanbark and charcoal for the regionally important iron ore industry as well as firewood. In addition to forestry uses, the area also has agricultural uses, such as the growing of rye and buckwheat, typical of shifting cultivation, in the year after the timber harvest, as well as subsequent communal grazing ( commons).