Amur–Zeya Plain () is

plateau In geology and physical geography, a plateau (; ; : plateaus or plateaux), also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. ...

Amur Oblast Amur Oblast () is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya rivers in the Russian Far East. The oblast borders Heilongjiang province of the People's Republic of China (PRC) to the south. The administrati ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. The climate is

continental Continental may refer to: Places * Continental, Arizona, a small community in Pima County, Arizona, US * Continental, Ohio, a small town in Putnam County, US Arts and entertainment * ''Continental'' (album), an album by Saint Etienne * Continen ...

with features of the

monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in Atmosphere of Earth, atmospheric circulation and precipitation associated with annu ...

, with cold, snowless winters and moderately warm summers. There are places gold deposits. The first exploration of the plateau was made by Russian pioneers in the 17th century.

Geography

It is located on the left bank of the middle reaches of the

Amur The Amur River () or Heilong River ( zh, s=黑龙江) is a perennial river in Northeast Asia, forming the natural border between the Russian Far East and Northeast China (historically the Outer Manchuria, Outer and Inner Manchuria). The Amur ...

river, between the Amur and Zeya. To the north it is bound by the Tukuringra Range and the

Dzhagdy Range The Dzhagdy Range () is a range of mountains in far Russian Far East, North-eastern Russia. Administratively it belongs partly to Amur Oblast and partly to the Khabarovsk Krai of the Federal subjects of Russia, Russian Federation. Geography The ...

.Амурско-Зейское плато
-

Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; , ''BSE'') is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Great Russian Enc ...

: (in 30 vols.) / Ch. ed.

A.M. Prokhorov Alexander Mikhailovich Prokhorov (born Alexander Michael Prochoroff, ; 11 July 1916 – 8 January 2002) was an Australian-born Russian physicist and researcher on lasers and masers, in the former Soviet Union. He shared the Nobel Prize in Ph ...

. - 3rd ed. - M .: Soviet Encyclopedia, 1969-1978. The

Nora Nora, NORA, or Norah may refer to: * Nora (name), a feminine given name People with the surname * Arlind Nora (born 1980), Albanian footballer * Pierre Nora (1931–2025), French historian * Simon Nora (1921–2006), French politician Place ...

and the Orlovka (Mamyn), right tributaries of the

Selemdzha The Selemdzha () is a river in the Amur Region of Russia. It is the biggest, left tributary of the Zeya. The length of the river is 647 km. The area of its basin 68,600 km². Course The Selemdzha has its source where three mountain r ...

, flow across the plateau.Nora
-

: (in 30 vols.) / Ch. ed.

. - 3rd ed. - M .: Soviet Encyclopedia, 1969-1978. The average height of the plateau is about 300 meters, the highest - 904 m. The plateau is dominated by plains, ridged and

hill A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, and is usually applied to peaks which are above elevation compared to the relative landmass, though not as prominent as Mountain, mountains. Hills ...

y terrain; in the Amur valley terrain extremely dismembered.

Crystalline A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macrosc ...

basement rocks are overlain by layers of

sand Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural ...

and

clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ...

deposits in the Neogene period lakes and ancient channels of the Amur and Zeya. The distribution of

permafrost Permafrost () is soil or underwater sediment which continuously remains below for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below ...

is patchy.

Flora

On the territory of the plateau common features include

larch Larches are deciduous conifers in the genus ''Larix'', of the family Pinaceae (subfamily Laricoideae). Growing from tall, they are native to the cooler regions of the northern hemisphere, where they are found in lowland forests in the high la ...

and

pine A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. ''World Flora Online'' accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as cu ...

forests and

birch A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech- oak family Fagaceae. The genus ''Betula'' contains 3 ...

. In the south is characterized by shrub thickets of

oak An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisp ...

and set of

marsh In ecology, a marsh is a wetland that is dominated by herbaceous plants rather than by woody plants.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p More in genera ...

es and

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

References

{{DEFAULTSORT:Amur-Zeya Plain Landforms of Amur Oblast