词条 | Elbe River |
释义 | Elbe River river, Europe Introduction Czech Labe, ![]() ![]() The total length of the Elbe is 724 miles (1,165 kilometres), of which roughly one-third flows through the Czech Republic and two-thirds through Germany. Its total drainage area is 55,620 square miles (144,060 square kilometres). Major tributaries are the Vltava (Moldau), Ohře (Eger), Mulde, and Saale rivers, all of which join it from the left, and the Iser, Schwarze (“Black”) Elster, Havel, and Alster rivers from the right. Physical features Physiography ![]() The river enters the North German Plain at Riesa, 25 miles below Dresden; below Riesa it meanders in a wide floodplain and has some abandoned loops. Dikes begin there and continue as far as the confluence of the Mulde. Between Wittenberg and Dessau the east–west valley floor narrows to five miles in width, and hilly land rises to the north (the Fläming Heath) and south. From Dessau to Magdeburg the floodplain widens, and dikes have been constructed continuously down to the sea. In its course below Magdeburg the floodplain is two miles wide down to the confluence with the Havel. The river keeps to the left of its floodplain and sometimes cuts into the low hills on its banks. Below the confluence with the Havel the river flows southeast–northwest; the floodplain widens and has distributaries and backwaters often flanked by low sandy hills (geest). Reclaimed salt marshes begin at Lauenburg. Above Hamburg—which the Elbe transverses in two arms, the Norder Elbe and the Süder Elbe—the floodplain is eight miles wide but narrows to four miles between the sandy geest of Schleswig-Holstein and the Lüneburg Heath. The estuary proper of the Elbe (Unterelbe) extends from Hamburg to Cuxhaven, a distance of about 55 miles. It varies in width from one to two miles, but much of it is occupied by mud flats and sandbanks. The main channel is buoyed and dredged. At high tide the channel has a depth of some 53 feet (16 metres). The south or left bank is low and marshy and the river has sandbanks; the right bank is steep below Hamburg, but farther downstream there are marshes, diked and drained, that are intensively cultivated. The great port city of Hamburg grew up on the Alster River on low sandy hills above the marshes. The modern port facilities have spread to the low-lying south bank of the Elbe. Hydrology The flow of water in the Elbe varies considerably with the amount of precipitation and thawing in its drainage basin. At Dresden the discharge rate averaged 11,200 cubic feet (317 cubic metres) per second in the period 1931–75, but the rate varied from a minimum of 800 cubic feet to a maximum of 118,700. At Neu-Darchau, about 140 miles above the mouth, the discharge rate was 24,700 cubic feet per second in the period 1926–65, with extremes of 5,100 and 127,700. These great variations sometimes hinder navigation. Although there are dams on the upper Elbe in the Czech Republic and at Geesthacht, Ger., and large dams have been built on the Vltava and on the Saale in the Thuringian Forest, these are not sufficient to control the water level of the Elbe. The lower course of the Elbe is tidal as far as the dam at Geesthacht, above Hamburg, where the river flow periodically reverses its direction. The average tide at Hamburg is about eight feet. However, during storms the water may rise much higher, occasionally even flooding parts of the city. The economy ![]() History The basin of the Elbe has been settled since prehistoric times. Until the Middle Ages the river was the western boundary of the area inhabited by the northern Slavs. In the 12th century the Germans began to colonize the lands east of the Elbe and along the Baltic Sea. In World War II a point on the Elbe near Torgau was the meeting place of the U.S. and Soviet armies. From the end of the war until 1990, the river formed part of the demarcation between East and West Germany. The city of Hamburg dates from the early 9th century AD. Together with Lübeck, Hamburg established the Hanseatic League in 1241. Today it is Germany's second largest city, surpassed only by Berlin. Another ancient city on the Elbe is Magdeburg, which in the early 9th century was a trading post on the border between the Germans and the Slavs. In the 13th century it was a flourishing commercial city and an important member of the Hanseatic League. Today it is the largest inland harbour of eastern Germany. The other chief city of the Elbe is Dresden, founded about 1200. During the 18th century Dresden developed into a great centre of the fine arts, known as “Florence on the Elbe.” Its beautiful architecture, almost completely destroyed during World War II, has been partially rebuilt. Other towns of historical interest along the Elbe include Wittenberg, the birthplace of the Protestant Reformation, and Meissen, which became famous for the manufacture of porcelain. Additional Reading Materials in English on the Elbe River are scarce. Two brief works on the Elbe are K. Schmidt, “Hydrological Structure of the Federal Republic of Germany,” in Hans-Jürgen Klink and Herbert Liedtke (ed.), Physical Geography in the Federal Republic of Germany (1984), pp. 31–39; and G. Luttig and K.-D. Meyer, “Geological History of the River Elbe, Mainly of Its Lower Course,” in P. Macar (ed.), L'Évolution Quaternaire des bassins fluviaux de la mer Nord méridionale (1974), pp. 1–19. The Elbe's regime is discussed in FrankDieter Grimm, “Das Abflussverhalten in Europa, Typen und regionale Gliederung,” Wissenschaftliche Veröffentlichungen des Deutschen Instituts für Länderkunde, 25/26:18–180 (1968). A.C. Semmler (ed.), Der Elbstrom, von seinem Ursprunge bis zu seiner Mündung in die Nordsee (1845, reprinted 1984), is a comprehensive work. |
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