Kungakhathaliseki kukhona emathafeni ase entabeni ebusuku polar? Impendulo isobala

On amaphethelo angasenyakatho aleli Europe, Asia le Melika ebusa nezimfunda. Ngo Nenkabazwe eningizimu ibizwa kuphela atholakala kwezinye iziqhingi Antarctic. emathafeni zone welula emingceleni enyakatho yeRussia, wageza yi ezineqhwa-Arctic Ocean.

Abahlukile futhi ezinzima zone yemvelo

Ngokubukeka kuba izindawo amnyama, engamili lutho futhi ehlane. izinyanga eziyisishiyagalolunye zonyaka lapha owandile ebusika, eside futhi elula yisicefe ebusuku polar. Ngaphambi treeless, umhlaba angenalutho kufika ukukhanya abandayo dim zenyanga. Kancane acwazimulayo liyinkanyezi ezihambela yodwa. Happy bheka ezingavamile, ubuhle fabulous le Borealis aurora.

Kuleli inhlabathi oyinyumba, frost ngiboshiwe eziningi, futhi ngezinye izikhathi zamakhulu, amamitha ezijulile, ukhule wona ezingavamile futhi ulele nesizungu. Eningizimu wazinza nezihlahla-okhula ongaphakeme singagxila peaty inhlabathi.

Ukuze siphendule umbuzo othi ngabe kukhona emathafeni ase entabeni ebusuku polar, kubalulekile ukuqonda incazelo yalokhu-ecosystem.

biome emangalisayo

Intaba emathafeni, okubhekiselwa kuzo nangokuthi "entabeni ephakeme", okuthiwa ekubukeni kwamanje semvelo endaweni mpo iphethini esishintshashintshayo. Insimu le biome yemvelo osuka iqhwa entabeni-ibhande. umngcele walo oluhambisana uhlu umngcele kwamahlathi sidlula snowline. Boundary sezulu zone - ngokwesilinganiso ehlobo isotherm + 10 °. Le ndawo libhekene eziphakeme izintaba ukuze sub-arctic futhi esishintshashintshayo athokomele.

Umahluko omkhulu kusukela emathafeni alpine ye-Arctic - okungcono inhlabathi amanzi nomhlabathi amanzi-ngemvume abampofu.

Imibandela sezulu yamazwe enyakatho

incazelo Scientific noma ngabe kukhona emathafeni ase entabeni, ebusuku polar, isimo sezulu endaweni ephephile. Ngenxa yalezi zindawo libhekene kakhulu lokushisa ongaphakeme lehliselwa ngokuhambisana umyela adiabatic 1 ° C njalo ukuphakama 100-200 m. Ukuze uthole ejwayelekile izimayini emathafeni negative izinga lokushisa emoyeni. Lapha-ke ubuswa isivunguvungu esinamandla, futhi emisebeni solar nobuntu umsebenzi omkhulu. Izoni isici rarefied emoyeni maldistribution ushintsho olunzulu umswakama walo. ikhava Snow is basakaza non-nombala.

Cacisa ukuthi kukhona emathafeni ase entabeni ebusuku polar, futhi kuzosiza endaweni ethize indawo. Lokhu Isenzakalo esingokwemvelo kwenzeka ezindaweni entabeni, okuyizinto ngokwendawo ngaphakathi kwe-Arctic Circle. Ngobusuku polar akwenzeki uma ezinkangala etholakala ezindaweni eningizimu ngaphezulu yemvelo, okuyinto esivela a sezulu esipholile. Phela, kule ndawo alternation suku nobusuku kuyafana ezindaweni zamahlathi coniferous kanye lezihlahla. Isimo eziyisisekelo elivela kuzo ebusuku polar ithatha khona njalo okushisa aphansi. Futhi isizathu kuphela lesi simanga iyona latitude yezemvelo, nakuba enyakatho, nakuba eseningizimu. Into esemqoka - ibanga esiphezulu kusukela enyakatho noma eningizimu ye-Arctic Circle iye enyakatho.

Winter: ebabayo ebumnyameni abandayo futhi kuyo

Uhlobo ukuthi kukhona emathafeni ase entabeni, ebusuku polar, zama ukusungula nenchazelo kanye nobude. Lesi simo esiyingqayizivele sibangelwa zemvelo ibizwa ngokuthi inkathi lapho ilanga aliveli lé esingaphezu kosuku. Lo is phetho ye-engeli ukuthambekela 23.5 °-eksisi ukuzungeza le mbulunga indiza Ecliptic. Esifitshane isikhathi (cishe izinsuku ezimbili), ebusuku polar ihlala endaweni ekuyi-latitude ye-Arctic Circle. Isikhathi esiphezulu lomkhuba - cishe izinyanga eziyisithupha, okuyinto evamile-South Pole.

ebusuku polar e emathafeni ihlala okuyisilinganiso sabangu-1-2 izinyanga futhi kuthatha indawo ebusika. Le sizini onokhahlo izimo zezulu. Ngakho, izinga lokushisa isilinganiso ngoJanuwari igcinwe ngezithuba -25-35 ° C. izintaba Snow eneziqongo, ugcwele obandayo, ebusika bheka ezingaphili. Ngisho owakhileyo unomphela emathafeni ase entabeni - reindeer - ziyofuna ukudla ngokuvamile otkochevyvaet eningizimu. izimo Heavy kule ndawo abe nokhahlo, nobusuku polar - kuyinselele ubunjalo zonke izinto eziphilayo.