Nature Alaska: sauyin yanayi, topography, Flora da fauna daga yankin

Alaska - mafi girma mafi "mai tsanani" US jihar. Gida Inuit Land na tsakar dare rãnã da na kama m shimfidar. The ƙwarai namun daji, na Alaska? Photo da kuma bayanin irin jiha za ka sami daga baya a cikin wannan labarin.

A karshe iyaka

Alaska aka located a kan wannan sashin a arewa maso yammacin ɓangare na nahiyar Amurka ta Arewa. Yana da arewacin Amurka jihar da kuma ma wani exclave (dogara yankin, kewaye da babban yankin kasar da sauran jihohin). Domin wadannan dalilai, Alaska zama da aka sani da suna "The Last Frontier."

Bugu da kari ga babban yankin, a jihar maida hankali ne akan Pribyvalova Island, Aleutian Islands, Alexander tarin tsiburai, Kodiak Island, St. Lawrence, da sauran kusa tsibirin. Yana da iyaka tare da Canada da kuma ta hanyar da band Bering mashigar - tare da Rasha. A kudancin jihar ta tekun Pacific, da arewa ne kewaye da Arctic Ocean, wanda ya rinjayi ƙwarai da samuwar yanayin Alaska.

A yankin maida hankali ne akan wani yanki na 1.7 murabba'in kilomita miliyan. Idan ka sanya shi a kan saman maps na Amurka, shi zai budewa daga Florida zuwa California. Akwai game da 740 mutane dubu. Cif da kuma daya daga cikin manyan biranen a Alaska - Juneau. Sauran manyan biranen: Anchorage, Sitka, Fairbanks, College.

A sauyin yanayi da kuma ƙasa

A tasiri a kan yanayin Alaska ya ba ta taimako. Tare kudancin bakin tekun na yankin ya kai Alaska Range inda ne Dutsen McKinley - da girma ganiya a Amurka. Gore ma kira Denali, da kuma kara zuwa tsawo na 6194 mita. A gabashin ɓangare na zangon, gaba ga Kanad Yukon sandarsa, shi ne Dutsen Bona - dogon dadaddun aman wuta ta rufe glaciers.

Arewa na kunya Filato zubar a wani babban altitudes daga 1200 zuwa 600 mita, wanda a hankali ya wuce zuwa kwari. A lokacin da tudu ne Brooks Range da elevations jere daga 950 zuwa 2000 mita. Baya shi ne Arctic Shefela. A Alaska, akwai "high-Yunƙurin zakarun Amurka," fiye da 20 kololuwa da wani cikakken tsawo na 4 kilomita.

Saboda babbar size na jihar da sauyin yanayi da kuma yanayi na Alaska ta daban-daban a sassa daban-daban na ita. A cikin ƙauyen sauyin yanayi Arctic. Ko da a cikin bazara da talakawan zafin jiki a yankin na -20 zuwa -28 digiri. A wasu sassan jihar yanayi ne da yawa milder.

A wajen kudu, da sauyin yanayi ne m tare da high ruwan sama. A zafin jiki a lokacin rani ko da yake ba kamar yadda tsanani kamar yadda a arewa, amma har yanzu low. A talakawan Yuli ya kai gare shi 13 digiri. Magangara mafi ƙasƙanci zafin jiki na Alaska, wanda ya taba rubuta - shi ne -62 digiri.

Nature Alaska

A jihar ne guda takwas kasa Parks. The most of su, da Gates-na-da-Alaska, aka located gaba ɗaya a cikin Arctic Circle a permafrost. Duk da sanyi da kuma harsh sauyin yanayi, daji Alaskan yanayi ne quite bambancin.

A yankin yana da yawa tabkuna. Akwai game da miliyan 3 da tabkuna da kuma 12 dubu koguna. Most kogin ne Yukon. Don arewa game da dubu 40 murabba'in mita. km glaciers.

A arewa maso yammacin kasar akwai babbar rairayi. A ciki na yankin rufe Woodlands da tundra. Sun zama a matsayin Haven domin muz, grizzly beyar, reindeer, minks, martens, Foxes, wolverines.

A kudancin Alaska ne natsuwa da coniferous gandun daji. Yana gida Wolves, coyotes, baribaly, partridges, Alaskan geese, takaddamarsu. Daga cikin ungulates fi yawa caribou, muz, dutsen awaki, wani lokacin akwai Musk sa.

Tare da bakin tekun na jihar ba kasa aiki rayuwa. Kusa da Alaska gida walruses, teku zakuna, daban-daban jinsunan Whales, like. A cikin Pacific Coast gida da yawa Shellfish, jatan lande da crabs.