Indlela eyakhiwe ngayo imilambo

Yenziwa njani imilambo yehlabathi?

Umlambo ngumsinga wamanzi aqukuqelayo ngokuqhubekayo kwaye ngokuqhelekileyo ngokwendalo, kwicala elinikiweyo ukunqumla phezu komhlaba. Imilambo inendima ebalulekileyo kumjikelo wamanzi nakumzekelo womphezulu womhlaba. abantu abaninzi bayazibuza indlela eyakheka ngayo imilambo.

Ngenxa yesi sizathu, kweli nqaku siza kukuxelela indlela imilambo eyenziwa ngayo, zeziphi iimpawu abanazo kunye nokubaluleka kwazo kwiplanethi.

yintoni imilambo

indlela eyakheka ngayo imilambo

Le mijelo isebenza njengemithambo ebalulekileyo kwi-ikhosistim, ibonelela ngamanzi amatsha kubomi bezityalo nezilwanyana, kwakunye nokutyiwa kwabantu kunye nemisebenzi yezoqoqosho. Ngaphandle koko, ukuhamba kwawo rhoqo kunegalelo kukhukuliseko kunye nentlenga, ukubumba imbonakalo yomhlaba ngokuhamba kwexesha.

Ummandla wamanzi ngummandla womhlaba otsalwa ngumlambo kunye nemithombo yawo. Ezi zitya ziqokelela amanzi emvula kwaye ziwaqhubele kwimilambo emikhulu, zinyusa ukuhamba kwazo. Njengoko umlambo usiya usiya phambili, ugxalathelana ube yimijelo emincinci ebizwa ngokuba zii-tributaries, ezidibana neyona ndlela iphambili kwaye ityebise ukuhamba kwawo.

Imilambo iyahluka ngobukhulu ukusuka kwimilambo emincinci ukuya kwimisinga emikhulu enqumla amazwekazi. Eminye yemilambo eyaziwa kakhulu kwihlabathi iquka iNayile, iAmazon, iGanges, iMississippi kunye neDanube, phakathi kwezinye ezininzi. Le milambo inendima ebalulekileyo kwibutho labantu, ibonelela ngamanzi kwezolimo, ukuhamba ngenqanawa, ukuvelisa umbane ophehlwa ngamanzi, kunye nezinye iindlela zoqoqosho.

Ukongeza kukubaluleka kwayo okubonakalayo, imilambo ikwanalo nobuhle kunye nexabiso lokuzonwabisa. Abantu abaninzi bayayonwabela imisebenzi efana nokuhamba ngesikhephe, ukuloba, ukuqubha, nokukhenketha emilanjeni, nto leyo ebavumela ukuba babuxabise ubuhle bendalo kunye nezilwanyana zasendle ezihlalayo nezijikeleze imilambo.

Indlela eyakhiwe ngayo imilambo

umlambo nokuqukuqela kwawo

Imilambo ibakho xa ifumana amanzi rhoqo, njengemithombo, iingxangxasi, okanye imikhenkce enyibilikayo. Umlambo ngumsinga wendalo wamanzi aqukuqela ukusuka kwindawo ephezulu ukuya kwindawo esezantsi ngomlambo.

Ukuhamba kwayo kuninzi kwaye rhoqo, kuqukuqela elwandle okanye emachibini. Isenokuqukuqela komnye umlambo omkhulu, apho iya kubizwa ngokuba yi-tributary. Ukuba umlambo mfutshane kwaye umxinwa, ubizwa ngokuba ngumlambo.

Imilambo yohlulwe ibe yindawo ephezulu, ephakathi kunye nesezantsi. Emantla kulapho zizalelwa khona (umthombo okanye i-headwaters), umbindi wamanzi ngummandla womlambo apho usenamandla amaninzi okuqukuqela kwaye uhlala uthe tye ngakumbi okanye ngaphantsi, kwaye emazantsi omlambo kulapho iqala khona ukuphulukana namandla kunye namandla ngaphambi kokuba ifike emlonyeni wayo. amagophe

Iindlela Rivers Form

iindlela zomlambo

Imvula

Imilambo ifumana amanzi kwimithombo eyahlukeneyo. Ngokuqhelekileyo le mithombo inxulunyaniswa nemvula. Amanzi emvula asuka ekujikeni kwamanzi elwandle enza amafu aze ahambe aye kumazwekazi, evelisa imvula.

Xa imvula iyancipha, amandla okufunxa umhlaba ahluthi. Emva koko amanzi adlula kwimingxunya emincinane emhlabeni. Kwiindawo eziphakamileyo, le grooves ye-hydrodynamic ibangelwa yimvula okanye ukunyibilika kwekhephu phezulu ezintabeni.

Imisele iya isiba nzulu ngenxa yokhukuliseko. Imisele emininzi ayinazo imisele ezinzileyo, kodwa izaliswe ngamanzi ngamaxesha athile ngexesha lemvula, okanye ngokunyibilika kwekhephu ngexesha lonyaka elishushu.

ukwakhiwa kwetshaneli

Ekubeni bengenawo umjelo oqhubekayo, awathathwa njengemilambo, kodwa kuthiwa yi-rapids okanye imilambo. Kuyo yonke imbali yoMhlaba, inkqubo yokunxiba ezi grooves zibangele ukuba zingene nzulu kumaleko ahlala ngokusisigxina.

Ngale ndlela, amanzi athuthiweyo ahlala emlanjeni kwaye awahluzwa. Umthombo womlambo kulapho indlela iqala khona. Inokuqala ngentlakohlaza okanye ngamanzi aphantsi komhlaba, imikhenkce enyibilikayo, okanye imvula ngokwayo.

Amanzi emvula ahlala ehla emathambekeni kwaye enze imisinga engaphezulu. Ukuba imisele iyawukhukulisa umhlaba kwaye kukho imvula eyaneleyo, inokwenza imifula. Ukuze oku kusebenze, umhlaba ohamba kuwo umlambo kufuneka uzaliswe ngamanzi kwaye ungangeni.

Imithombo

Enye indlela eyakhiwa ngayo imilambo ngemithombo. Umthombo ngumthombo wendalo wamanzi aphuma emhlabeni okanye phakathi kwamatye. Amanzi avela emvuleni okanye ekhephuni angena kwindawo enye aze avele kwindawo eziphakamileyo. Xa amanzi entlakohlaza ephumela kwindawo engenamanzi, amanzi awahluli ngasemva aze enze umsele ojika ube ngumlambo. Amanzi emvula ondla umthombo, kwaye umthombo wondla umlambo kwindawo yawo.

Ikhonkco

Ukongeza kwimithombo, imilambo emininzi iphinda ityiswe ngama-aquifers. I-aquifers yintaphane yamatye avuzayo avumela ukuqokelelana kwamanzi ngeepores okanye iifractures.. Xa i-aquifer ifikelela kumanqanaba okugcwala, amanzi aphuma kwi-pores, kwaye ukuba umhlaba awunamanzi, amanzi awela kwimisele.

Amanzi aphantsi komhlaba ngowona mthombo mkhulu wamanzi omlambo, agcina amanzi ahamba rhoqo nokuba imvula inayiphi na. Noko ke, imvula iyafuneka ngamathub’ athile ukuze kuzaliswe amanzi aphantsi komhlaba.

Umtsalane

Ekugqibeleni, Ukunyibilika komkhenkce weentaba kunokwenza imilambo. Njengoko besikhe saphawula ngaphambili, i-meltwater inokudala i-ruts kwithambeka.

Umhlaba uzaliswe ngamanzi kwaye ufikelela kumaleko angenamanzi, ngaloo ndlela ufumana umjelo apho umlambo udlula khona. Imilambo ekwimimandla enomkhenkce idla ngokuqukuqela kakhulu ehlotyeni kuba kulapho umkhenkce unyibilika khona.

Ebusika, imvula evela kwimimandla esezintabeni iba ngumkhenkce ize ibe ngumkhenkce, yaye xa amaqondo obushushu aphezulu efika, loo mkhenkce uyanyibilika kwakhona.

Isiphambuka somjelo kunye nomsinga

Ukuba ujonga imilambo emikhulu njengeAmazon okanye iNayile, ayinamthombo nje omnye, inemithombo emininzi. Koko kukuthi, imilambo emininzi kunye nemilanjana idibanisa ukwenza imilambo emikhulu. Kwimeko yeAmazon, umzekelo, imvelaphi yayo ayicacanga. Izazi ngejografi zicinga ukuba intsusa yomlambo yeyona ndawo isemantla apho kukho amanzi amaninzi.

Nangona kunjalo, ubungakanani bamanzi anikezelweyo buxhomekeke kwixesha lonyaka, ngoko ke akukho nokwenzeka ukuqwalasela indawo enye njengomthombo womlambo. Ukwazi ukuba leliphi icandelo elinonikezelo lwamanzi lukhulu, idatha yokuhamba kwamanzi ngexesha elide iyafuneka.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nendlela imilambo eyenziwa ngayo.


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