I-Antarctica ingashiywa ngaphandle kwe-25% ngaphantsi komkhenkce ngasekupheleni kwenkulungwane

Umkhenkce waseAntarctica

Imimandla esemajukujukwini, egutyungelwe likhephu, zezona zisemngciphekweni ekufudumaleni. Zombini iArctic neAntarctica ziphantsi kotshintsho olukhulu. Kwimeko ethile yeAntarctica, Iindawo ezingenamkhenkce ziya kwanda kwaye ziya kuphela ngokudibana njengoko umkhenkce unyibilika.

Ngokwophononongo olutsha oluvela kwiAustralia Antarctic Division (AAD), epapashwe kwiphephancwadi indalo, ngasekupheleni kwenkulungwane kwiparadesi emhlophe kunokubakho malunga neepesenti ezingama-25 ngaphantsi komkhenkce; yiyo i Ungazuza malunga ne-17.267, XNUMX leekhilomitha zomhlaba.

Kulabo bafuna ukuya eAntarctica kwixa elizayo, ngokuqinisekileyo kuya kuba lula kunangoku. Kodwa, ziziphi iziphumo ezinokubakho ngenxa yokunyibilika? Ewe, eyona nto icace gca sonke esiyaziyo yile ukunyuka komgangatho wolwandle. Konke ukunyibilika komkhenkce kufuneka kuye kwenye indawo, kwaye ngokucacileyo kuya elwandle.

Ngasekupheleni kweminyaka eliwaka, iplanethi yoMhlaba iya kwahluka kakhulu, yahluke kakhulu, njengeelwandle zayo baya kuba bekhulile iimitha ezingama-30, kwaye kangangeminyaka engama-10.000 60 ukusukela ngoku, xa kungekho khephu lishiyekileyo e-Antarctica, oku konyuka kuyakuba ziimitha ezingama-XNUMX njengoko kuchaziwe Iarhente yeSinc umphandi kwiziko lezeNzululwazi laseCarnegie (United States) uKen Caldeira.

Jonga i-Antarctic Landscape

Ukongeza kwiziphumo ezibi eziza kubakho kuwo wonke umhlaba, e-Antarctica zombini iintlobo zemveli kunye nezingenayo ziya kusasazeka. Njengokuba kuhlala kusenzeka kwindalo, kuyakubakho idabi lokusinda, kwaye ngokucacileyo eyona ilungisiweyo iya kuphumelela. Oku kuthetha ukuba ezinye zeentlobo zemveli zingaphela.

Okwangoku imimandla engenamkhenkce, ukusuka kwiskwere sekhilomitha ukuya kumawaka aliqela, yiyo iindawo zokuzalela zamanzi olwandle kunye neentaka zaselwandle, kodwa zikwalikhaya kwizilwanyana ezingenamqolo, i-fungi kunye ne-lichen. Ekuhambeni kwexesha, banokuthi ekugqibeleni bathabathe ilizwekazi liphela, basenze sizibuze ukuba iya kuze iphinde ibe luhlaza kwakhona. njengokuba kwakunjalo kwiminyaka engama 50 yezigidi eyadlulayo.


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