The North German Plain or Northern Lowland ( German : Norddeutsches Tiefland ) is one of the major geographical regions of Germany . It is the German part of the North European Plain . The region is bounded by the coasts of the North Sea and the Baltic Sea to the north, Germany's Central Uplands ( die Mittelgebirge ) to the south, by the Netherlands to the west and Poland to the east.
41-1051: In the west, the southern boundary of the North German Plain is formed by the Lower Saxon Hills : specifically the ridge of the Teutoburg Forest , the Wiehen Hills , the Weser Hills and the Lower Saxon Börde, which partly separate it from that area of the Plain known as the Westphalian Lowland . Elements of the Rhenish Massif also act a part of the southern boundary of the plain: the Eifel , Bergisches Land and
82-670: A period of refusal, confirmed the inviolability of the border in 1970 in the Treaty of Warsaw . In 1990 newly reunified Germany and the Republic of Poland signed a treaty recognizing the Oder–Neisse line as their border. On 11 August 2022, it was discovered that the Oder river had been contaminated and at least 135 tonnes of dead fish washed up on its shores. Water samples taken on 28 July indicated possible mesitylene contamination, although
123-651: Is a river in Central Europe . It is Poland's second-longest river and third-longest within its borders after the Vistula and its largest tributary the Warta . The Oder rises in the Czech Republic and flows 742 kilometres (461 mi) through western Poland, later forming 187 kilometres (116 mi) of the border between Poland and Germany as part of the Oder–Neisse line . The river ultimately flows into
164-684: Is classified as region number D 36 by the BfN; its full name being the Niedersächsisches Bergland (mit Weser- und Leine-Bergland (Lower Saxon Hills, including the Weser and Leine Hills). D 36 is a newly defined region that incorporates 3 geographical units from the old system: numbers 36, 37 and 53, and includes all parts of the Weser Uplands ( Weserbergland ) in both its narrower and a wider sense. That said, all three elements of
205-757: Is drained by rivers that flow northwards into the North Sea or the Baltic and tributaries to the Rhine river that flows West. The Rhine, Ems , Weser , Elbe and Havel are the most important rivers which drain the North German Lowlands into the North Sea and created woods in their flood plains and folds, e.g. the Spreewald ("Spree Forest"). Only a small area of the North German Plain falls within
246-666: Is only a narrow channel (Świna) going to the Bay of Pomerania , which forms a part of the Baltic Sea. The largest city on the Oder is Wrocław , in Lower Silesia . The Oder is navigable over a large part of its total length, as far upstream as the town of Koźle , where the river connects to the Gliwice Canal . The upstream part of the river is canalized and permits larger barges (up to CEMT Class IV ) to navigate between
287-593: Is the second longest river overall taking into account its total length, including parts in neighbouring countries. The Oder drains a basin of 119,074 square kilometres (45,975 sq mi), 106,043 km (40,943 sq mi) of which are in Poland (89%), 7,246 km (2,798 sq mi) in the Czech Republic (6%), and 5,587 km (2,157 sq mi) in Germany (5%). Channels connect it to
328-768: The Allies decided that the new eastern border of Germany would run along the Oder. After World War II, the former German areas east of the Oder and the Lusatian Neisse passed to Poland by decision of the victorious Allies at the Potsdam Conference (at the insistence of the Soviets). As a result, the so-called Oder–Neisse line formed the border between the Soviet occupation zone (from 1949 East Germany ) and Poland. The final border between Germany and Poland
369-497: The Altes Land near Hamburg , which is characterised by relatively mild temperatures year round due to the proximity of the North Sea and lower Elbe river, providing excellent conditions for fruit production. Azonal vegetation complexes of moors, riparian forests, fens and water bodies originally stretched along the rivers Ems , Weser , Elbe , Havel and Spree . Distinctive salt marshes , tideflats and tidal reed beds in
410-611: The Havel , Spree , Vistula system and Kłodnica . It flows through Silesian , Opole , Lower Silesian , Lubusz , and West Pomeranian voivodeships of Poland and the states of Brandenburg and Mecklenburg-Vorpommern in Germany. The main branch empties into the Szczecin Lagoon near Police, Poland . The Szczecin Lagoon is bordered on the north by the islands of Usedom (west) and Wolin (east). Between these two islands, there
451-783: The Sauerland . In the east the North German Plain spreads out beyond the Harz Mountains and Kyffhäuser further to the south as far as the Central Saxon hill country and the foothills of the Ore Mountains . It is known that the North German Plain was formed during the Pleistocene era as a result of the various glacial advances of terrestrial Scandinavian ice sheets as well as by periglacial geomorphologic processes. The terrain may be considered as part of
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#1732776420913492-702: The Szczecin Lagoon north of Szczecin and then into three branches (the Dziwna , Świna and Peene ) that empty into the Bay of Pomerania of the Baltic Sea . The Oder is known by several names in different languages, but the modern ones are very similar: English and German: Oder ; Czech, Polish, and Lower Sorbian : Odra , Upper Sorbian : Wódra ; Kashubian : Òdra ( pronounced [ˈwɛdra] ); Medieval Latin : Od(d)era ; Renaissance Latin : Viadrus (invented in 1534). Ptolemy knew
533-556: The Tecklenburger Land und Osnabrücker Land are also part of this region. The Weser Valley between Bad Karlshafen and Porta Westfalica also belongs to this area. 52°0′0″N 9°0′0″E / 52.00000°N 9.00000°E / 52.00000; 9.00000 Oder The Oder ( / ˈ oʊ d ər / OH -dər , German: [ˈoːdɐ] ; Czech , Lower Sorbian and Polish : Odra ; Upper Sorbian : Wódra [ˈwʊtʁa] )
574-531: The estuaries existed permanently in the tidal zone of the North Sea coast. The natural vegetation of the North German Plain is thought to have been forest formed mainly by the dominant species European Beech (Fagetalia). According to Germany's Federal Agency for Nature Conservation, the BfN , the North German Plain consists of the natural regions listed below. Where possible, their names have been derived from authoritative English-language source(s), as indicated by
615-479: The 10th century, almost the entire course of the Oder River found itself within the borders of the newly formed Polish state, with the exception of the area around the source of the river, which was under Bohemian rule. Several important cities of medieval Poland developed along the Oder, including Opole which became the capital of Upper Silesia , Wrocław which became the capital of Lower Silesia and one of
656-519: The 73 natural regions in Germany defined by the Federal Agency for Nature Conservation (BfN). Geographically it covers roughly the same area as the Weser Uplands ( German : Weserbergland ) in its wider sense. The region is part of Germany's Central Uplands with hills ranging up to 528 m above sea level (NN) in height that extend across northeast North Rhine-Westphalia , southern Lower Saxony and northern Hesse . It
697-797: The Berlin waterways again. Near its mouth the Oder reaches the city of Szczecin , a major maritime port. The river finally reaches the Baltic Sea through the Szczecin Lagoon and the river mouth at Świnoujście . Under Germania Magna , the river was known to the Romans as the Viadrus or Viadua in Classical Latin , as it was a branch of the Amber Road from the Baltic Sea to the Roman Empire . In Germanic languages, including English, it
738-515: The Börde areas (Hildesheim Börde, Magdeburg Börde, with their fertile, loess soils). High-level bog peat can be found in the poorest soils, e.g. in the Teufelsmoor . In the loess areas of the lowland are found the oldest settlement locations in Germany ( Linear Pottery culture ). The northeastern part of the plain (Young Drift) is geomorphologically distinct and contains a multitude of lakes (e.g.
779-543: The Fulda Gap option was seen as the most likely invasion route because of easier and closer access to tactical and strategic goals important for an invasion of Western Europe. Of the two North German plain invasion options, the southern route of the attack, which had the better strategic opportunities, would have been led by the Soviet Third Shock Army . The plain's geography, which makes it suitable for
820-650: The Mueritz lake in the Mecklenburg Lake Plateau ) which are vestiges of the last ice age. The retreating glaciers left this landscape behind around 16,000 to 13,000 years ago. In comparison, the dry plains of northwestern Germany (Lower Saxony, western Schleswig-Holstein, and the Bochum area of North Rhine Westphalia) are more heavily weathered and levelled ( Old Drift ) as the last large scale glaciations here occurred at least 130,000 years ago. The region
861-461: The Oder and Havel. After completion of the more straight Oder–Havel Canal in 1914, its economic relevance decreased. The earliest important undertaking to modify the river to improve navigation was initiated by Frederick the Great , who recommended diverting the river into a new and straight channel in the swampy tract known as Oderbruch near Küstrin ( Kostrzyn nad Odrą ). The work was carried out in
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#1732776420913902-592: The Old or Young Drift ( Alt- or Jungmoräne ), depending on whether or not it was formed by the ice sheets of the last glacial period, the Weichselian Ice Age . The surface relief varies from level to undulating. The lowest points are low moorlands and old marshland on the edge of the ridge of dry land in the west of Schleswig-Holstein (the Wilster Marsh is 3.5 m (11 ft) below sea level) and in
943-568: The catchment area of the Oder and Neiße rivers which drain into the Baltic. The North Sea coast and the adjacent coastal areas of the facing East and North Frisian Islands are characterised by a maritime climate . South of the coast, a broad band of maritime and sub-maritime climate stretches from the east coast of Schleswig-Holstein to the western edges of the Central Uplands . To
984-524: The deployment of armored and mechanized maneuver , led to it being identified as a major invasion route into West Germany . The defense of the Plain was the responsibility of NATO's Northern Army Group and Second Allied Tactical Air Force , made up of German, Dutch, Belgian, British, and some US forces. 53°36′N 10°24′E / 53.600°N 10.400°E / 53.600; 10.400 Lower Saxon Hills The Lower Saxon Hills ( German : Niedersächsisches Bergland ) are one of
1025-684: The industrial sites around the Wrocław area. Further downstream the river is free-flowing, passing the towns of Eisenhüttenstadt (where the Oder–Spree Canal connects the river to the Spree in Berlin) and Frankfurt upon the Oder . Downstream of Frankfurt the river Warta forms a navigable connection with Poznań and Bydgoszcz for smaller vessels. At Hohensaaten the Oder–Havel Canal connects with
1066-654: The lower Saxon Hills. The following tables show the landscape sub-divisions in the Lower Saxon Hills. Those regions which are normally considered part of the Weser Uplands in its narrower sense are indicated by (W); similarly the which are normally included in the Leine Uplands are annotated with (L): In addition to the Osning (= Teutoburg Forest ) and the Wiehen Hills, historic landscapes like
1107-700: The main cities and ports of the Pomerania region and the entire southern coast of the Baltic Sea. From the 13th century on, the Oder valley was central to German Ostsiedlung , making the towns on its banks German-speaking over the following centuries. Over time, control over parts of the river was taken from Poland by other countries, including the Margraviate of Brandenburg and the Kingdom of Bohemia , and later also by Hungary , Sweden , Prussia and Germany . The Finow Canal , first built in 1605, connects
1148-532: The main cities of the entire Kingdom of Poland (Latin: sedes regni principales ), and Lubusz (now Lebus) which became the capital of the Lubusz Land , nicknamed "the key to the Kingdom of Poland" in medieval chronicles. Wrocław and Lubusz became seats of some of the oldest Catholic bishoprics of Poland, founded in 1000 ( Wrocław ) and 1125 ( Lubusz ). Located near the mouth of the river, Szczecin became one of
1189-619: The modern Oder as the Συήβος ( Suebos ; Latin Suevus ), a name apparently derived from the Suebi , a Germanic people. While he also refers to an outlet in the area as the Οὐιαδούα Ouiadoua (or Οὐιλδούα Ouildoua ; Latin Viadua or Vildua ), this was apparently the modern Wieprza , as it was said to be a third of the distance between the Suebos and Vistula . The name Suebos may be preserved in
1230-461: The modern name of the Świna river (German Swine ), an outlet from the Szczecin Lagoon to the Baltic. The Oder is 840 kilometres (522 miles) long: 112 km (70 miles) in the Czech Republic, 726 km (451 miles) in Poland (including 187 km (116 miles) on the border between Germany and Poland). It is the third longest river located within Poland (after the Vistula and Warta); however, it
1271-936: The northwest of Lower Saxony (Freepsum, 2.3 m (7.5 ft) below sea level). The highest points may be referred to as Vistula and Hall glaciation terminal moraines (depending on the ice age which formed them) – e.g., on the Fläming Heath (200 m (660 ft) above sea level) and the Helpt Hills 179 m (587 ft)). Following the ice ages, rain-fed, raised bogs originated in western and northern Lower Saxony during warm periods of high precipitation (as influenced by Medieval Warm Period). These bogs were formerly widespread but much of this terrain has now been drained or otherwise superseded. The coastal areas consist of Holocene lake and river marshes and lagoons connected to Pleistocene Old and Young Drift terrain in various stages of formation and weathering. After or during
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1312-652: The references. During the Cold War , in the event of war between NATO and the Warsaw Pact , NATO military strategists identified the North German plain as an area that could have been used for two of three major invasion routes into Western Europe by Warsaw Pact forces. The third route was the Fulda Gap further south. The North German plain routes were the best attack options for an attacking army. However,
1353-461: The region, despite their misleading names, cover far more than is generally meant in everyday language or in atlases by the term Weserbergland . In addition the Weser-Leine Hills sub-division (37) includes the whole of the Leine Uplands ( Leinebergland ), whilst the Harz mountains, admittedly are only partly in Lower Saxony, are clearly older in geological time scale and have been given their own natural region (D37) rather than being grouped with
1394-431: The retreat of the glaciers, wind-borne sand often formed dunes, which were later fixed by vegetation. Human intervention caused the emergence of open heath such as the Lüneburg Heath , and measures such as deforestation and the so-called Plaggenhieb (removal of the topsoil for use as fertilizer elsewhere) caused a wide impoverishment of the soil ( Podsol ). The most fertile soils are the young marshes ( Auen-Vegen ) and
1435-417: The rivers Albis (Elbe) , Oder, and Vistula . Centuries later, after Germanic tribes, the Bavarian Geographer (ca. 845) specified the following West Slavic peoples: Sleenzane , Dadosesani, Opolanie , Lupiglaa, and Golensizi in Silesia and Wolinians with Pyrzycans in Western Pomerania . A document of the Bishopric of Prague (1086) mentions Zlasane, Trebovyane, Poborane, and Dedositze in Silesia. In
1476-451: The south east and east, the climate becomes increasingly subcontinental: characterised by temperature differences between summer and winter which progressively increase away from the tempering effect of the ocean. Locally, a drier continental climate can be found in the rain shadow of the Harz and some smaller areas of upland like the Drawehn and the Fläming . Special microclimates occur in bogs and heathlands and, for example, in
1517-437: The toxin was not present in samples taken after 1 August. Main section: Szczecin Lagoon : east: Dziwna (German: Dievenow ) branch (between Wolin Island and mainland Poland): middle: Świna (German: Swine ) branch (between Wolin and Usedom islands): west: Peenestrom ( Peene ) (Polish: Piana ) branch (between Usedom Island and mainland Germany): [REDACTED] This article incorporates text from
1558-423: The years 1746–53, a large tract of marshland being brought under cultivation, a considerable detour cut off and the mainstream successfully confined to a canal. In the late 19th century, three additional alterations were made to the waterway: By the Treaty of Versailles , navigation on the Oder became subject to International Commission of the Oder. Following the articles 363 and 364 of the Treaty Czechoslovakia
1599-493: Was and still is called the Oder , written in medieval Latin documents as Odera or Oddera . Most notably, it was mentioned in the Dagome iudex , which described territory of the Duchy of Poland under Duke Mieszko I in A.D. 990, as a part of Poland's western frontier, however, in most sections the border ran west of the river. Before Slavs settled along its banks, the Oder was an important trade route, and towns in Germania were documented along with many tribes living between
1640-426: Was entitled to lease in Stettin (now Szczecin) its own section in the harbor, then called Tschechoslowakische Zone im Hafen Stettin . The contract of lease between Czechoslovakia and Germany , and supervised by the United Kingdom , was signed on 16 February 1929, and would end in 2028, however, after 1945 Czechoslovakia did not regain this legal position, de facto abolished in 1938–39. At the 1943 Tehran Conference
1681-449: Was to be determined at a future peace conference. A part of the German population east of these two rivers was evacuated by the Nazis during the war or fled from the approaching Red Army . After the war, the remaining 8 million Germans were expelled from these territories by the Polish and Soviet administrations. East Germany confirmed the border with Poland under Soviet pressure in the Treaty of Zgorzelec in 1950. West Germany , after