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Northeast China Plain Deciduous Forests
The Northeast China Plain deciduous forests ecoregion (WWF ID: PA0430) covers the flat interior Northeast China Plain, in the region historically known as Manchuria. The plain is surrounded by mountains on the north and east, and supports some of China's largest forest tracts. There are also extensive low-lying wetlands, which support important bird populations. Location and description The Northeast China Plain is the largest single plain in China, bordered by the Changbai Mountains on the border with North Korea to the east, and the Greater Khingan and Lesser Khingan mountains to the north. The southern half of the region is the watershed of the Liao River, which runs south into the Bohai Sea. Climate The climate of the ecoregion is '' Humid continental climate, hot summer'' (Köppen climate classification (Dwa)), with a dry winter. This climate is characterized by large seasonal temperature differentials and a hot summer (at least one month averaging over ), and cold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palearctic
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Siberian region; the Mediterranean Basin; the Sahara and Arabian Deserts; and Western, Central and East Asia. The Palaearctic realm also has numerous rivers and lakes, forming several freshwater ecoregions. The term 'Palearctic' was first used in the 19th century, and is still in use as the basis for zoogeographic classification. History In an 1858 paper for the ''Proceedings of the Linnean Society'', British zoologist Philip Sclater first identified six terrestrial zoogeographic realms of the world: Palaearctic, Aethiopian/Afrotropic, Indian/Indomalayan, Australasian, Nearctic, and Neotropical. The six indicated general groupings of fauna, based on shared biogeography and large-scale geographic barriers to migration. Alfred Wallace a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humid Continental Climate
A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers and freezing cold (sometimes severely cold in the northern areas) winters. Precipitation is usually distributed throughout the year but often do have dry seasons. The definition of this climate regarding temperature is as follows: the mean temperature of the coldest month must be below or depending on the isotherm, and there must be at least four months whose mean temperatures are at or above . In addition, the location in question must not be semi-arid or arid. The cooler ''Dfb'', ''Dwb'', and ''Dsb'' subtypes are also known as hemiboreal climates. Humid continental climates are generally found between latitudes 30° N and 60° N, within the central and northeastern portions of North America, Europe, and Asia. They are rare and isolat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of China
{{Short description, none The following is a list of terrestrial ecoregions of the People's Republic of China and the Republic of China, according to the World Wide Fund for Nature. The transition between two of the planet's eight terrestrial biogeographic realms – the Palearctic, which includes temperate and boreal Eurasia, and Indomalaya, which includes tropical South and Southeast Asia – extends through southern China. Tropical and subtropical moist broadleaf forests * Guizhou Plateau broadleaf and mixed forests * Hainan Island monsoon rain forests * Jiang Nan subtropical evergreen forests * Northern Indochina subtropical moist forests * South China Sea Islands * South China-Vietnam subtropical evergreen forests * South Taiwan monsoon rain forests (Taiwan) * Taiwan subtropical evergreen forests (Taiwan) * Yunnan Plateau subtropical evergreen forests Temperate broadleaf and mixed forests * Central China loess plateau mixed forests * Changbai Mountains mixed forests * Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palearctic Ecoregions
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Siberian region; the Mediterranean Basin; the Sahara and Arabian Deserts; and Western Asia, Western, Central Asia, Central and East Asia. The Palaearctic realm also has numerous rivers and lakes, forming several freshwater ecoregions. The term 'Palearctic' was first used in the 19th century, and is still in use as the basis for Zoogeography, zoogeographic classification. History In an 1858 paper for the ''Proceedings of the Linnean Society'', British zoologist Philip Sclater first identified six terrestrial zoogeographic realms of the world: Palaearctic, Aethiopian/Afrotropic, Indian subcontinent, Indian/Indomalayan, Australasian realm, Australasian, Nearctic, and Neotropical. The six indicated general groupings of fauna, based on shared biog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions In China
{{Short description, none The following is a list of terrestrial ecoregions of the People's Republic of China and the Republic of China, according to the World Wide Fund for Nature. The transition between two of the planet's eight terrestrial biogeographic realms – the Palearctic, which includes temperate and boreal Eurasia, and Indomalaya, which includes tropical South and Southeast Asia – extends through southern China. Tropical and subtropical moist broadleaf forests * Guizhou Plateau broadleaf and mixed forests * Hainan Island monsoon rain forests * Jiang Nan subtropical evergreen forests * Northern Indochina subtropical moist forests * South China Sea Islands * South China-Vietnam subtropical evergreen forests * South Taiwan monsoon rain forests (Taiwan) * Taiwan subtropical evergreen forests (Taiwan) * Yunnan Plateau subtropical evergreen forests Temperate broadleaf and mixed forests * Central China loess plateau mixed forests * Changbai Mountains mixed forests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-crowned Crane
The red-crowned crane (''Grus japonensis''), also called the Manchurian crane or Japanese crane (; the Chinese character '丹' means 'red', '頂/顶' means 'crown' and '鶴/鹤' means 'crane'), is a large East Asian crane among the rarest cranes in the world. In some parts of its range, it is known as a symbol of luck, longevity, and fidelity. Description Adult red-crowned cranes are named for a patch of red bare skin on the crown, which becomes brighter during the mating season. Overall, they are snow white in color with black on the wing secondaries, which can appear almost like a black tail when the birds are standing, but the real tail feathers are actually white. Males are black on the cheeks, throat, and neck, while females are pearly gray in these spots. The bill is olive green to a greenish horn, the legs are slate to grayish black, and the iris is dark brown.Archibald G.W. & Meine, C.D. 1996. ''Family Gruidae (Cranes)''. In: del Hoyo J, Elliott A, Sargatal J. (Eds.). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chernozem
Chernozem (from rus, чернозём, p=tɕɪrnɐˈzʲɵm, r=chernozyom; "black ground"), also called black soil, is a black-colored soil containing a high percentage of humus (4% to 16%) and high percentages of phosphorus and ammonia compounds. Chernozem is very fertile soil and can produce high agricultural yields with its high moisture storage capacity. Chernozems are a Reference Soil Group of the World Reference Base for Soil Resources (WRB). Distribution The name comes from the Russian terms for black and soil, earth or land (''chorny'' + ''zemlya''). The soil, rich in organic matter presenting a black color, was first identified by Russian geologist Vasily Dokuchaev in 1883 in the tallgrass steppe or prairie of European Russia. Chernozem cover about 230 million hectares of land. There are two "chernozem belts" in the world. One is the Eurasian steppe which extends from eastern Croatia (Slavonia), along the Danube (northern Serbia, northern Bulgaria ( Danubian Pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Acutissima
''Quercus acutissima'', the sawtooth oak, is an Asian species of oak native to China, Tibet, Korea, Japan, Indochina (Vietnam, Thailand, Myanmar, Cambodia) and the Himalayas (Nepal, Bhutan, northeastern India). It is widely planted in many lands and has become naturalized in parts of North America. ''Quercus acutissima'' is closely related to the Turkey oak, classified with it in ''Quercus'' sect. ''Cerris'', a section of the genus characterised by shoot buds surrounded by soft bristles, bristle-tipped leaf lobes, and acorns that mature in about 18 months. Description ''Quercus acutissima'' is a medium-sized deciduous tree growing to tall with a trunk up to in diameter. The bark is dark gray and deeply furrowed. The leaves are long and wide, with 14–20 small saw-tooth-like triangular lobes on each side, with the teeth of very regular shape. The flowers are wind-pollinated catkins. The fruit is an acorn, maturing about 18 months after pollination, long and 2 cm br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bohai Sea
The Bohai Sea () is a marginal sea approximately in area on the east coast of Mainland China. It is the northwestern and innermost extension of the Yellow Sea, to which it connects to the east via the Bohai Strait. It has a mean depth of approximately , with a maximum depth of about located in the northern part of the Bohai Strait. The Bohai Sea is enclosed by three provinces and one direct-administered municipality from three different regions of China — Liaoning Province (of Northeast China), Hebei Province and Tianjin Municipality (of North China), and Shandong Province (of East China). The whole of the Bohai Sea is considered a part of both the internal waters of the People's Republic of China and the center of the Bohai Economic Rim. Its proximity to the Chinese capital of Beijing and the municipality of Tianjin makes it one of the busiest seaways in the world. History During the Pleistocene, the Bohai Sea experienced numerous glacioeustatic transgressions and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperate Broadleaf And Mixed Forest
Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions. These forests are richest and most distinctive in central China and eastern North America, with some other globally distinctive ecoregions in the Caucasus, the Himalayas, Southern Europe, Australasia, Southwestern South America and the Russian Far East. Ecology The typical structure of these forests includes four layers. * The uppermost layer is the canopy composed of tall mature trees ranging from high. Below the canopy is the three-layered, shade-tolerant understory that is roughly shorter than the canopy. * The top layer of the understory is the sub-canopy composed of smaller mature trees, saplings, and suppressed juvenile canopy layer trees awaiting an opening in the canopy. * Below the sub-canopy is the shrub layer, composed of low growi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liao River
The Liao River () is the principal river in southern Northeast China, and one of the seven main river systems in China. Its name derived from the Liao region, a historical name for southern Manchuria, from which the Liaoning province, Liaodong Peninsula and Liao dynasty also all have derived their names. The river is also popularly known as the "mother river" in Northeast China. Coursing long, the Liao River system drains a catchment basin of over , but its mean discharge is quite small at only about , about one-twentieth that of the Pearl River. The Liao River has an exceedingly high sediment load because many parts of it flow through powdery loess. The Liao River is also an important geographical landmark, as it divides the modern Liaoning province into two broad regions — Liaodong ("east of Liao River") and Liaoxi ("west of Liao River"). Course The Liao River is formed from the confluence of its two main tributaries, the Xiliao River from the west, and Dongliao River fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
