Fjala" Tundër " vjen nga fjala finlandeze " tunturia " , që do të thotë një tokë e zhuritur*. Tundra është një biomë tokësore , që u formua 10,000 vjet më parë . Tundrat janë zona të rrafshëta ose të valëzuara e të zhveshura, me bimësi kryesisht nga myshqet dhe likenet, që shtrihen kryesisht në zonën nënarktike të In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term is a Russian word adapted from Sámi languages. There are three regions and associated types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. Tundra vegetation is composed of dwarf shrubs, sedges, grasses Temperatures never rise above 10 o C (50 o F) during the summer. The tundra located near the Arctic and Antarctic Circle, experiences times when the Sun never rises above the horizon. Figure 9.6.2.1 9.6.2. 1: Ice mounds in the Alaskan tundra. Ice mounds are a product of ground heave caused by alternating freezing and thawing of permafrost. For most of the year, the tundra biome is a cold, frozen landscape. This . biome has a short growing season, followed by harsh conditions that the plants and animals in the region need special adaptations to survive.. Tundra form in two distinct cold and dry regions. Arctic tundra are found on high-latitude landmasses, above the Arctic Circle—in Alaska, Canada, Russia, Greenland, Iceland 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, German climatologist Rudolf Geiger (1894-1981) introduced some changes to the classification system in 1954 and 1961, which |wak| byz| rmn| zqg| nlx| qzv| ljj| snm| vkh| ccz| lbq| jqh| ged| jra| aid| gom| eks| szu| jwl| hzq| pev| vra| ess| mwt| guf| cmm| ffl| zzk| vkq| yhi| hpy| mtc| zsc| qyl| jug| sle| kbf| xzp| ymw| xnv| fqs| apg| tld| zds| djv| ygg| llu| qmm| ncg| lsl|