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Yarlung Tsangpo Arid Steppe
The Yarlung Tsangpo arid steppe ecoregion (WWF ID: PA1022) covers the river valley of the Yarlung Tsangpo River on the southern edge of Tibet. The river runs parallel to the northern borders of Nepal, Bhutan and India, between the Himalayas to the south and the Tibet Plateau to the north. The river valleys are the most populated areas of Tibet, putting pressure on wildlife. The area ranges from cold desert in the west to steppe shrub land in the east; the few trees are in the lowest river valleys to the east. Location and description The Yarlung Tsangpo runs west to east for along the north slope of the Himalayas, but south of the Transhimalaya ranges of the Gangdise Shan and Nyenchen Tanglha Mountains. The ecoregion mostly follows the river valley and short tributary valleys, including the area north to Lhasa. Yamdrok Lake, one of the largest lakes of the Tibetan Plateau is in the region, and at Lhasa is an urban impoundment of water now protected as the Lalu Wetlands Na ... [...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] |
Yamdrok Lake
Yamdrok Lake (also known as Yamdrok Yumtso or Yamzho Yumco; ; ) is a freshwater lake in Tibet, it is one of the three largest sacred lakes in Tibet. It is over long. The lake is surrounded by many snow-capped mountains and is fed by numerous small streams. The lake has an outlet stream at its far western end and means turquoise in English due to its color. Around to the west of the lake lies the Tibetan town of Gyantse and Lhasa is to the northeast. According to local mythology, Yamdok Yumtso lake is the transformation of a goddess. The Yamdrok Hydropower Station was completed and dedicated in 1996 near the small village of Baidi at the lake's western end. This power station is the largest in Tibet. Physical data The lake ( in area, average depth and at its deepest) is fan-shaped, spreading to the south but narrowing up to the north. The mountainous lakeshore is highly crenellated, with numerous bays and inlets. Lake Yamdrok freezes in winter. Climate Yamdrok Lake ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of 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] |
Kobresia
''Kobresia'' is a genus of plants in the sedge family. They are sometimes called bog sedges. These perennial sedges are quite similar to ''Carex'' species in appearance. The genus is widespread across much of Europe, Asia and North America, with many species native to the Himalayas. Species *'' Kobresia burangensis'' Y.C.Yang – Tibet *'' Kobresia capillifolia'' (Decne.) C.B.Clarke – Central Asia, Himalayas, Tuva region of Siberia, Mongolia, central and western China including Tibet and Xinjiang *''Kobresia cercostachys'' (Franch.) C.B.Clarke – Eastern Himalayas, Nepal, Bhutan, Tibet, Yunnan *''Kobresia condensata'' (Kük.) S.R.Zhang & Noltie – Sichuan, Yunnan *''Kobresia cuneata'' Kük – Tibet to central China *'' Kobresia curticeps'' (C.B.Clarke) Kük. in H.G.A.Engler – Tibet, Nepal, Bhutan *'' Kobresia curvirostris'' (C.B.Clarke) C.B.Clarke in J.D.Hooker – Bhutan, Arunachal Pradesh, Thailand *'' Kobresia duthiei'' C.B.Clarke in J.D.Hooker – Tibet, Nepal, Bhutan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonicera
Honeysuckles are arching shrubs or twining vines in the genus ''Lonicera'' () of the family Caprifoliaceae, native to northern latitudes in North America and Eurasia. Approximately 180 species of honeysuckle have been identified in both continents. Widely known species include ''Lonicera periclymenum'' (common honeysuckle or woodbine), ''Lonicera japonica'' (Japanese honeysuckle, white honeysuckle, or Chinese honeysuckle) and ''Lonicera sempervirens'' (coral honeysuckle, trumpet honeysuckle, or woodbine honeysuckle). ''L. japonica'' is an aggressive, highly invasive species considered a significant pest on the continents of North America, Europe, South America, Australia, and Africa. Some species are highly fragrant and colorful, so are cultivated as ornamental garden plants. In North America, hummingbirds are attracted to the flowers, especially ''L. sempervirens'' and ''L. ciliosa'' (orange honeysuckle). Honeysuckle derives its name from the edible sweet nectar obtainable fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potentilla
''Potentilla'' is a genus containing over 300Guillén, A., et al. (2005)Reproductive biology of the Iberian species of ''Potentilla'' L. (Rosaceae).''Anales del Jardín Botánico de Madrid'' 1(62) 9–21. species of annual, biennial and perennial herbaceous flowering plants in the rose family, Rosaceae. Potentillas may also be called cinquefoils in English, but they have also been called five fingers and silverweeds. Some species are called tormentils, though this is often used specifically for common tormentil (''P. erecta''). Others are referred to as barren strawberries, which may also refer to '' P. sterilis'' in particular, or to the closely related ''Waldsteinia fragarioides''. Several other cinquefoils formerly included here are now separated in distinct genera - notably the popular garden shrub ''P. fruticosa'', now ''Dasiphora fruticosa''. Potentillas are generally found throughout the northern continents of the world (holarctic), though some occur in montane biomes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aristida
''Aristida'' is a very nearly cosmopolitan genus of plants in the grass family. ''Aristida'' is distinguished by having three awns (bristles) on each lemma of each floret. The genus includes about 300 species found worldwide, often in arid warm regions. This genus is among those colloquially called three-awns wiregrasses, speargrasses and needlegrasses. The name ''Aristida'' is derived from the Latin " arista", meaning "awn". They are characteristic of semiarid grassland. The Wiregrass Region of North America is named for '' A. stricta''. Other locales where this genus is an important component of the ecosystem include the Carolina Bays, the sandhills of the Carolinas, and elsewhere, Mulga scrub in Australia, and the xeric grasslands around Lake Turkana in Africa. Local increases in the abundance of wiregrasses is a good indicator of overgrazing, as livestock avoid them. Description ''Aristida'' stems are ascending to erect, with both basal and cauline leaves. The leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennisetum
''Pennisetum'' is a widespread genus of plants in the grass family, native to tropical and warm temperate regions of the world. They are known commonly as fountaingrasses (fountain grasses).''Pennisetum''. Integrated Taxonomic Information System (ITIS).''Pennisetum''. The Jepson eFlora 2013. ''Pennisetum'' is considered a synonym of '''' in Kew's |
Stipa
''Stipa'' is a genus of around 300 large perennial hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, which also contains many species formerly assigned to ''Stipa'', which have since been reclassified into new genera. Many species are important forage crops. Several species such as ''Stipa brachytricha'', ''S. arundinacea'', ''S. splendens'', ''S. calamagrostis'', ''S. gigantea'' and ''S. pulchra'' are used as ornamental plants. One former species, esparto grass (''Macrochloa tenacissima''), is used for crafts and extensively in paper making. It is a coarse grass with inrolled leaves and a panicle patterned inflorescence. Ecology Species of the genus ''Stipa'' can occur in grasslands or in savanna habitats. Certain specific prairie plant associations are dominated by grasses of the genus ''Stipa'', which genus often lends its name to the terminology of some prairie types. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katabatic Wind
A katabatic wind (named from the Greek word κατάβασις ''katabasis'', meaning "descending") is a drainage wind, a wind that carries high-density air from a higher elevation down a slope under the force of gravity. Such winds are sometimes also called fall winds; the spelling catabatic winds is also used. Katabatic winds can rush down elevated slopes at hurricane speeds, but most are not that intense and many are 10 knots (18 km/h) or less. Not all downslope winds are katabatic. For instance, winds such as the föhn and chinook are rain shadow winds where air driven upslope on the windward side of a mountain range drops its moisture and descends leeward drier and warmer. Examples of true katabatic winds include the bora in the Adriatic, the Bohemian Wind or ''Böhmwind'' in the Ore Mountains, the Santa Ana in southern California, the piteraq winds of Greenland, and the oroshi in Japan. Another example is "the Barber", an enhanced katabatic wind that blows over t ... [...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] |
Subarctic Climate
The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50° to 70°N, poleward of the humid continental climates. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification ''Dfc'', ''Dwc'', ''Dsc'', ''Dfd'', ''Dwd'' and ''Dsd''. Description This type of climate offers some of the most extreme seasonal temperature variations found on the planet: in winter, temperatures can drop to below and in summer, the temperature may exceed . However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least to fall into this category of climate, and the coldest month should ave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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