20 Imizekelo yoMlambo waseMntla Melika - I-Encyclopedia

Ngegama le Umlambo Kuyaziwa ngemisinga yendalo yamanzi aqhubekayo angena kwamanye afanayo, abizwa ngokuba ziilwandle: imilambo yimilambo yolwandle, ethi yona ibe kukungena kolwandle, umphezulu wamanzi owenza iipesenti ezingama-71 zomphezulu womhlaba.

Ihlabathi lizele yimilambo kwaye uninzi lwamazwe luninzi lwayo, kubandakanya nalawo mazwe angenandawo yokuya elwandle, la mazwe abizwa ngokuba ngamazwe angenamhlaba.

Yonke imilambo inesakhiwo esineempawu ezizezayo. Imvelaphi yomlambo ibekwe kwindawo ebizwa nascent, Eqhubeka ngu kunjalo, umgama phakathi komthombo nomlomo.

Kwikhosi ephezulu ungabona ithambeka eliphambili kunye nentshukumo ekhawulezayo yamanzi, ukhukuliseko lomhlaba luthe nkqo. Iikhosi eziphezulu zezi, kwimeko yokuba yomile, imiwonyo. Embindini nasezantsi ufika kwithambeka kuyinto ecolekileyo, ukuthuthwa kuyaqhubeka kwaye ukhukuliseko lomhlaba luthe tyaba, lwandisa ububanzi Intili. Inkqubo ye- itshaneli yindawo apho amanzi abaleka khona, kwaye umlomo sisithuba apho amanzi athulula khona umlambo.

Isakhelo se-hydrographic yemilambo senza ukuba kufuneke kusekwe imvumelwano yokumisela ukuba nguwuphi na umlambo kwaye yeyiphi imisinga kunye ne-subafluents, imisinga yamanzi enika ukuhamba emlanjeni ngaphandle kokuba ingoyena uphambili. Ihlala ichazwa ngu umlambo omkhulu njengokuhamba kwamanzi okukhulu, okanye ngobude bayo obukhulu okanye indawo yokuhambisa amanzi. Ngamanye amaxesha ubungakanani kunye nokuhamba kwemilambo kuyafana noko kwemilambo, okanye imeko yokuhamba okuphezulu kulungiswa ngokwexesha lonyaka. Yiyo loo nto kuqhelekile ukuba imilambo efanayo ithiywe ngeendlela ezininzi, okanye eyona mijelo ibalulekileyo ibizwe ngeendlela ezahlukeneyo.

Ijografi amantla Emelika likhaya elinenani elikhulu lemilambo, uninzi lwayo olunxulunyaniswa nesitya esikhulu saseMississippi-Missouri-Ohio, esihlala malunga neekhilomitha ezingama-6000. Ingingqi etyebileyo kumachibi, ngakumbi imvelaphi yeqhwa, ehlala uninzi lweCanada. Olu luhlu lulandelayo luya kubonisa imizekelo yemilambo eMntla Melika, ngenkcazo emfutshane yeyona ibalulekileyo kuyo:

UMlambo iMississippi: Ucanda umbindi weUnited States. Ibaleka phakathi komantla eMinnesota kunye neGulf of Mexico, enobude obuphantse babe ziikhilomitha ezingama-4,000.
UMlambo iMackenzieUmlambo omde waseKhanada, uvela kwiChibi eliKhulu leSlave, kwiNtshonalanga yeNtshonalanga. Ingena kulwandle lwaseBeaufort, kwingingqi yaseKhanada.
Umlambo iSt. Lawrence: Izalelwe eOntario, Canada, kwaye ithululela ngqo kulwandlekazi lweAtlantic, emva kokuwela into ebizwa ngokuba yichweba laseSan Lorenzo, elilelona likhulu emhlabeni.
UMlambo iColorado: Malunga neekhilomitha ezingama-2 500 ubude. Xa idlula kwi-State of Arizona, yenza enye yezinto ezimangalisayo zendalo, oko kubizwa ngokuba yi-'Grand Canyon yaseColorado '.
UMlambo iMissouri: Umlambo owela amaThafa amakhulu aseUnited States. Isitya sayo senzelwe ukunkcenkceshela, ukulawula izikhukula, kunye nokuveliswa kwamandla ombane.