Kogin Nilu koyaushe ana gaskata shi mafi tsayi a duniya, amma idan ba haka ba fa? Auna wadannan kogunan ba mai sauki bane kamar yadda yake sauti, ba ma ga masu zane-zane ba saboda ya danganta da dalilai daban-daban: ana amfani da ma'aunin awo, inda kogi daya ya fara wani kuma ya kare (tunda da yawa rafuka sun hadu da tsarin kogi), tsayin su ko su girma.
Masana da yawa suna jayayya cewa kogin mafi tsayi a duniya shine ainihin Amazon. Amma me yasa akwai rikici sosai akan wannan batun? Menene ainihin kogin mafi tsayi a duniya?
Kogin Nilu
A halin yanzu, wannan taken rikodin na Guinness yana cikin rikici tsakanin Kogin Nilu da Amazon. A al’adance, ana daukar Kogin Nilu mafi tsayi a kan kilomita 6.695, wanda ya samo asali daga Gabashin Afirka kuma ya shiga Tekun Bahar Rum. Tare da tafiyarsa yana ƙetare ƙasashe goma:
- Jamhuriyar Demokiradiyyar Congo
- Burundi
- Rwanda
- Tanzania
- Kenya
- Uganda
- Habasha
- Eritrea
- Sudan
- Misira
Wannan yana nufin cewa sama da mutane miliyan 300 sun dogara ga Kogin Nilu don samar da ruwa da kuma ban ruwa na amfanin gona.Bugu da kari, kuzarin daga wannan asalin ruwa yana amfani da Babbar Dam din Aswan, don samar da wutar lantarki da kuma magance ambaliyar rani tun 1970, shekarar da aka gina ta. Abin mamaki! gaskiya?
Kogin amazon
Hoto | Pixabay
Dangane da sabis na Gidajen Kasa na Amurka, Kogin Amazon ya kai kimanin kilomita 6.400. Kodayake ba shine kogi mafi tsayi ba, amma shine mafi girma a duniya ta hanyar girma: kusan sau 60 fiye da Kogin Nilu, wanda kwararar sa kawai yakai kashi 1,5% na na Amazon.
Idan muka lura da yadda yake gudana, kogin Amurka shine sarkin dukkan koguna tunda yana fitar da matsakaiciyar mita mai girman cubic 200.000 duk dakika cikin Tekun Atlantika. Wannan adadin ruwan da yake fitarwa kenan cikin kwanaki 5 kacal zai iya cika duka Tafkin Geneva (zurfin mita 150 da tsawon kilomita 72). Babu shakka madalla.
Hakanan Amazon yana da mafi girman magudanar ruwa a duniya, wanda ke ratsawa tsakanin kasashe kamar:
- Peru
- Ecuador
- Colombia
- Bolivia
- Brasil
Haka kuma gandun dajin na Amazon yana cikin kwatarn sa, wanda yake dauke da gida ga nau'ikan daji da yawa kamar dabbobi masu shayarwa, dabbobi masu rarrafe ko tsuntsaye.
A gefe guda, Kogin Amazon shine mafi fadi a duniya. Lokacin da bai cika ambaliya ba, manyan sassansa na iya zuwa nisan kilomita 11. Yana da faɗi sosai cewa ƙoƙarin ƙetare shi da ƙafa zai ɗauki awanni 3. Kuna karanta wannan daidai, 3 hours!
Ina rigimar kenan?
Hoto | Pixabay
A cewar hukumar kula da gandun dajin ta Amurka, Kogin Nilu shi ne kogi mafi tsayi a duniya mai nisan kilomita 6650 yayin da na Amazon shi ne na biyu a kilomita 6.400. Matsalar tana faruwa ne yayin da wasu masana ke jayayya cewa kogin Amurka da gaske yana da nisan kilomita 6.992.
Cibiyar nazarin yanayin kasa da kididdiga ta kasar Brazil da aka buga a 'yan shekarun da suka gabata wani bincike ya bayyana cewa Amazon shine kogi mafi tsayi a duniya. Sun cimma matsayar cewa asalin kogin yana kan wani wuri zuwa kudu na Peru maimakon zuwa arewa kamar yadda aka yi ta fada har yanzu.
Don gudanar da wannan binciken, masanan sun yi tafiya na tsawon makonni biyu don tsayar da tsawan kusan mita 5.000. Har zuwa wannan lokacin, an kafa tushen Amazon a cikin kwazazzaben Carhuasanta da kan dutsen da ke da dusar ƙanƙara a Mismi, amma Geoungiyar Geographical ta Lima ta tabbatar ta hanyar hotunan tauraron ɗan adam cewa Kogin Amazon ya samo asali ne daga kwafin Apacheta (Arequipa), saboda haka wanda zai zama kogi mafi tsawo a duniya, wanda ya zarce Kogin Nilu da kusan kilomita 400.
Wanene ke da dalili?
Gaba daya kungiyar masana kimiyya na ci gaba da dagewa kan cewa Kogin Nilu shi ne mafi tsawo a duniya. Wanene ke da dalili? Ba a san tabbas ba saboda batun har yanzu ana tattaunawa. Kodayake, an ba shi faɗi da kuma girmansa, watakila zai zama wajibi ne a jingina zuwa ga Amazon.