Iindawo zemveli Intshona Melika: Iinkalo Izikhankanyi

Iindawo zemveli North America ukutsala ecaleni esiqu, ngokuba kwinkalo nganye belizwekazi unalo ithuba lokuphuhlisa amashishini ezithile. Okukhona indawo yendalo, kokukhona angasolula ecaleni ithe cwaka. Isibakala sokuba mphandle akhokelela utshintsho lomlinganiselo nobushushu nokufuma kungekuphela ukusuka emantla ukuya emazantsi, kodwa ukususela entshona ukuya empuma.

Iindawo zemveli North America, ibekwe kummandla eGreenland kunye Canadian Archipelago, ekuthiwa Arctic kwiintalango. Ekubeni iimeko zemozulu abangqwabalala kakhulu, oku negalelo ukumelwa kakuhle kakhulu enezityalo nezilwanyana. Kwezo ndawo bezithe engenayo ngumkhenkce, kunokuthi kubonwe ubulembu kuphela kunye ulele. Phantse wonke izilwanyana liphela uhlala olwandle.

Xa kude ngasentla zwekazi ummandla emathafeni. Ekubeni kusoloko kukho ukufuma, lo mmandla baba amanzi. Phantse yonke indawo igutyungelwe ubulembu kunye ulele. Njengoko ngokuba imithi, i ezinde ezincinanana kunye alder alifikeleli kubude ngaphezu kwe-5 cm.

I kude ngasezantsi, iindawo zendalo of North America ibonakala wethafa kakhulu. Oku kugqalwa senguqu kwaye luphawulwa alternating amahlathi kunye neendawo emathafeni. oku kwakhona luphawulwa ubukho alder kunye willow yehlathi. Kuphela kule ndawo imilambo ziqala ukubonakala nespruce kunye larch.

indawo Natural ehlathi coniferous ise emazantsi ngakumbi. Apha ungenza ukubukela ebusika ngqwabalala nezinde zasehlotyeni - i mfutshane kwaye kufudumele. Ngokubhekiselele ukufuma komhlaba kunye nomoya, ekubeni lo mmandla luphawulwa amaqondo aphantsi abe ngumphunga kunye ukufuma apha ngaphezu kwemfuneko.

Materials, North amaMelika luphawulwa nakwiSigaba esiPhakathi. Ngoko ke, phakathi coniferous kunye namahlathi avuthulukayo ndawo amahlathi exutyiweyo.

Kwaye sele kummandla kummandla Appalachian zimelwe amahlathi broadleaf, nto leyo iphawulwa ezahlukeneyo iintlobo zemithi. Njengokuba izilwanyana, kukho amaxhama ezininzi, leencanda, uvelisa baribalu kunye possums, nto leyo ke abameli kuphela marsupials kulo lonke izwekazi.

Ke kwimimandla caba belizwekazi, kukho ummandla ihlathi-emathafeni. osempuma ubizwa ngokuba enkangala, kuba unezinga eliphezulu ukufuma. Namhlanje, le ndawo elima ngokupheleleyo kuba luphawulwa ukulingana zomhlaba, iimeko zivuma zemozulu kwaye umhlaba olungileyo emnyama.

North America, apho iindawo zendalo ibekwe kakuhle kwi lwezobulungisa lwengingqi, sibonakala bubukho lommandla emathafeni kumbindi belizwekazi. Apha, isixa esikhulu ubushushu inikezelwa, kodwa oku akukho mali yaneleyo ukufuma ihlawulelwa.

Njengoko kuba kwinxalenye esempuma lommandla sikwisubtropic, banda amahlathi engumxube, emelwe ziintlobo emininzi Conifers, nemithi yesundu ezincinanana kunye neentlobo ityholwana of evergreen oki.

Ukuba sithethe kunxweme Pacific, esilawulwa amahlathi hardwood kunye amatyholo. Imihlaba omdaka, zikhula ezininzi neentlobo ezizodwa evergreen oki, leyo esele eyaziwa phambi Ice Age.

iindawo zendalo of America, abahlala usingasiqithi Florida kunye California kuthiwa nefumileyo yaye emvula. Imimandla ke mzuzu enye okuyi nganye. Inxalenye engaphakathi kuhlala ngokupheleleyo iindawo Amathafa nemihlaba yeenkuni. Ngokumalunga kwithafa Atlantic lonxweme, oko nibe ogalelwe imimoya zorhwebo, kuba linani elikhulu kakhulu amahlathi.

Xa Cordillera zimelwe kakhulu ngokucacileyo ummandla omkhulu-ukuphakama.