Lockfleth

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The Lockfleth between the Jade Bay and the Lower Weser

Lockfleth is now a pulling ditch in the Wesermarsch (in the Lower Saxony district of Wesermarsch ) called, which runs in a north-south direction from the Strohauser Sieltief to the Schmalenflether Sieltief .

history

Map from around 1645 with some dikes in the county of Oldenburg and Lockfleth, which silted up around 100 years earlier

The forerunner of this pulling ditch is a tider channel , which arose in 1332 at the height of today's Augustgroden , ate its way deep into the inland during the Second Marcellus Flood on January 16, 1362 and connected at the latest in 1382 with the Harrier Brake, which was broken through a dyke of the Weser at the height of today's Brake was created. As a result, the Lockfleth became an estuary of the Weser. Most of the Weser water continued to reach the sea through the (main) estuary of the Lower Weser near Blexen . In addition to today's Lockfleth, the estuary of the Weser also had a “ Hoben“Named area. The name refers to a moor to the northwest of today's Zuggraben, which was raised during high water and was washed piece by piece into the open sea over time. A large number of names of geographical objects north and north-west of the Strohauser Sieltiefs remind of this disappeared moor. The section of the tidal channel located there is partly called Lockfleth , partly Hoben , partly Ahne .

After the defeat of the Frisian peasant republics Stadland and Butjadingen in the battle of the Hartwarder Landwehr (1514), the new sovereigns, the Counts of Oldenburg , began extensive dike work. From the south they pushed the sea water back. The section south of today's Strohauser Sieltiefs was already drained in the first third of the 16th century. By rapidly successive pre-dikes in the years 1520, 1530, 1555 ( dike dike for Esenshammer and Abbehauser Grodens ), 1574 (dike dike for the so-called "Old Hobens"), 1591 (dike dike for the "New Hobens"), the dike was completed in 1643 Seefeld practically the entire Ahne / Heete and Lockfleth area has been transformed into marshland. Only at Sehestedt does the still boggy subsoil of the remaining stock of the Hobens cause problems with the stability of the Jade Bay dike to this day.

In the time of its existence, the Lockfleth separated the Stadland, which had become an island in the Weser, from the largely uninhabited moorland in the east of the Ruesting Bovenjadingen ("Ober-Jadeland") to the west and from the south of it, gradually from the south four marshland bailiots settled here . Even today, the Lockfleth moat forms the border between the municipality of Stadland and the former Marschvogtei Strückhausen, which today belongs to the municipality of Ovelgönne .

Management of today's draw trench

Stadlander Sielacht is now responsible for the drained marshland on both sides of the Lockfleth moat . This also looks after areas north of the Strohauser Sieltiefs, which they call "Hoben West" and "Hoben Ost" based on the former Weser arm.

Biotope network

The filled-in course of the former Weser arm Lockfleth still has special site qualities for meadow bird biocenoses and represents an important biotope network between the Lower Weser and the Jade Bay.

Individual evidence

  1. ↑ Lockfleth . landkarteonline.com
  2. ↑ Hansjörg Streif : The geological development of the Weser valley and the Weser . Bremen Environment and Information System (BUISY) 1999
  3. ^ H. Goens: Farms of the Moormarsch and the desert country . In: Oldenburg Yearbook of the Association for Archeology and Regional History , Vol. 33, 1929, p. 19
  4. ↑ In Seefeld there is a street called "Am Lockfleth" that runs next to the former tider channel.
  5. ↑ cf. H. Goens: Farms of the Moormarsch and the desert country . In: Oldenburg Yearbook of the Association for Archeology and Regional History , Vol. 33, 1929, p. 23
  6. ^ Friends of Prehistory and Early History at the Lower Saxony State Museum Hanover (FUF): Archaeological monuments in the Wesermarsch district
  7. ↑ Marcus Malsy: Analysis of the inflow and drainage systems in the Wesermarsch: history, function and strategies for adapting to climate change . Thesis. Carl von Ossietzky University of Oldenburg, April 30, 2010, p. 38
  8. ↑ Landkreis Wesermarsch: Landscape framework plan LK Wesermarsch. Revised 2012/2014. Module 1: Identification of areas worthy of nature protection (NWB) with particular importance as breeding and resting habitats for the avifauna . P. 12