Yankin tsaunukan Arctic

tsaunin tsaunukan arctic

A yau zamu tattauna game da tsaunin tsaunukan arctic. Tsarin tsaunuka ne na keɓaɓɓun jeri. An kuma san shi da sunan Arctic Rockies. Tana kan iyakar arewa maso gabas na Arewacin Amurka. Tana da duwatsu masu kankara da manyan duwatsu masu kankara wadanda suka zama shimfidar wuri na musamman. Yankin tsaunuka ne wanda ya iyakance gabas da ruwan Baffin Bay kuma a arewacin yankin yana iyaka da Tekun Arctic, saboda haka sunan su.

A cikin wannan labarin zamu gaya muku duk halaye, ilimin ƙasa, flora da fauna na tsaunin Arctic.

Babban fasali

dusar ƙanƙara a cikin tsaunuka

Yankin tsauni ne wanda ya faɗo daga arewacin ƙarshen Labrador Peninsula kuma ya mamaye duka bakin teku da yawancin tsibirai a cikin tsibirin Arctic na Kanada. Sun kai kusan nisan sama da kilomita 2.700. Tana da duwatsu masu kankara da yawa da kankara masu yawa waɗanda ke samar da manyan filayen kankara. A tsarin mulki, kuma ya kasance mallakar yankin Nunavut ne mai cin gashin kansa, kodayake bangaren kudu maso gabas na yankin Newfoundland da Labrador da Quebec ne.

Tsari ne wanda aka kasu zuwa jerin tsaunukan tsauni kuma suna da wasu tsaunuka wadanda suke da tsawo sama da mita 2.000. Mafi girman ganuwa an san shi da Barbeau Peak kuma yana da tsayin mita 2.616. An kuma san shi da matsayi mafi girma a gabashin Arewacin Amurka. Duk wannan tsarin tsaunin yana, tare da Duwatsu masu duwatsu, na manyan biyun a Kanada. Oneayan yanki ne wanda ke iyaka da arewacin Tekun Arctic, yayin da a ɓangaren Labrador yake da yanayin da ake kira taiga. Garkuwar taiga da alama baya shafar Ecozone, inda ake samun yawancin halittu masu yawa, kuma bai shafi yankunan kan iyaka ba. Wannan saboda kaddarorin halittun su akasin haka ne.

A wannan yanayin zamu sami yanayi mai sanyi da yanayi mai dumi da wasu nau'o'in tsire-tsire daban-daban da kuma fauna waɗanda suka dace da muhalli daban-daban. Ya tsaya waje don samun shimfidar wuri mai cike da manyan filayen kankara tare da kankara mai tsayi da kuma fjords. Duk wannan tsarin halittu yana haifar da shimfidar wuri na musamman mai kyawun gaske. Tana da manyan ruwan da ke kan iyaka tare da yanayi daban-daban na muhalli zuwa yankuna da yawa masu kama da juna a duniya. Yankinsu sananne ne da yanayin rashin gafartawa, kodayake mutane sun kiyaye adadin mutane kusan dubu.

Yanayin muhalli na tsaunin Arctic

glaciers na tsaunin tsaunuka

Dukkanin shimfidar wuri yana da kashi 75% wanda dusar kankara ko shimfidar gado ta bayyana. Anan zamu sami sanannen sanannen ƙasa mai daskarewa da aka sani da permafrost. Wannan dusar kankara ta kasance a tsawon shekara kuma tana sanya tsiro da rayuwar dabbobi da ɗan ƙaranci. Ka tuna cewa don rayuwa ta kasance dole ne a sami jerin kayan abinci. Sakamakon wannan sarkar shine yadda ake samun mahada daban-daban wanda dabbobi da tsirrai zasu sami ci gaba.

A cikin tsaunukan Arctic matsakaita yanayin zafi ya fara daga digiri 6 a lokacin bazara zuwa -16 digiri a lokacin sanyi. Wadannan ƙarancin yanayin yana sanya ciyawar yawanci babu su. Ainihin dalilin da yasa babu tsirrai saboda dusar ƙanƙara da dusar ƙanƙara. Yankin tsaunin Arctic yana da ɗan gajeren yanki mai kyau idan aka kwatanta shi da sauran yankuna na Kanada.

Anan ga tsaunin arewa mafi nisa a duniya. An san su da tsaunukan llealubale kuma suna yankin arewa maso yamma na tsibirin. Ganin mahimmancin da suke da shi ga tsarin halittu da daidaituwar yanayin muhalli, an kafa kewaye tare da rukunin yanki mai kariya. An san shi da suna Torngat Mountains National Park Reserve, wanda ke kan Labrador Peninsula kuma ya rufe mafi yawan gefen kudu na Arctic Range. Wannan yanki mai kariya yana da alhakin kare yawancin nau'o'in namun daji kamar polar bear, falgons peregrine, gaggafa zinariya da caribou.

Yankin yanki mai kariya na tsaunin Arctic

torngat duwatsu

An kafa shafin yanar gizon a ranar Janairu 22, 2005, yana mai da shi filin shakatawa na kasa na farko da aka kirkira a Labrador. Yana da adadi mai yawa na glaciers da iyakoki na pola wanda yankin mafi bushewa shine arewacin kuma an rufe shi da kankara. Glaciers sun fi yawa a ƙarshen kudu kasancewar sun fi ɗumi. Idan muka je Tsibirin Ellesmere, za mu ga cewa yawancin zaɓuɓɓukan an rufe su da ƙanƙara da kankara. Duk cikin karni na 500, duk bakin gabar tsibirin arewa maso yammacin tsibirin ya kasance ta hanyar babban shimfidar kankara wanda girmansa yakai kilomita 90. Kamar yadda ake tsammani, tasirin ɗumamar yanayi ya shafi waɗannan layukan tsaunuka. Duk wannan yanki na kankara an rage shi da kashi XNUMX% sakamakon tasirin karuwar zazzabi da iska mai gurbata yanayi ta haifar.

Akwai wani bincike da aka gudanar a 1986 game da tasirin ɗumamar yanayi a kan tsaunin Arctic kuma an gano cewa kilomita 48, wanda ya shafi kankara 2 kilomita 3.3 (3 cubic mil) na kankara, ya ɓalle daga kan kangon Milne da Ayles. 0.79 da 1959. Dukkanin sauran sauran sassan da suka rage na dusar kankara mai suna terrestrial ice ana kiranta da Ward Hunt Ice Shelf. Rushewar kantunan Ellesmere na kankara ya ci gaba zuwa ƙarni na 1974: Ward Ice Shelf ya sami babban fashewa a lokacin bazara na 2002.

Akwatin dumamar yanayi, babban fashewa da aka samu shi ne na dandalin da zai iya zama barazana ga masana'antar mai a cikin Tekun Beaufort.

Kamar yadda kake gani, ɗayan kyawawan tsaran tsaunuka a duniya yana fuskantar mummunan tasirin tasirin ɗumamar yanayi. Ina fatan cewa tare da wannan bayanin zaku iya koyo game da tsaunin Arctic da halayensa.


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