| Kogin Awash | |
|---|---|
 | |
| General information | |
| Tsawo | 1,200 km |
| Labarin ƙasa | |
 | |
| Tsarin Daidaiton Labarin Kasa | 9°00′43″N38°08′50″E / 9.011827°N 38.147111°E /9.011827; 38.147111 |
| Kasa | Habasha |
Hydrography(en) | |
| Tributary(en) | |
| Watershed area(en) | 64,000 km² |
| Tabkuna | Tafkin Abbe |
| River mouth(en) | Tafkin Abbe |
Awash(wani lokacin ana rubuta shi da sunanHawash; Oromiffa:Awaash, Amharic: አዋሽ, Afar:We'ayot,Somali:Webiga Dir) hanyar ta gaba daya tana cikin iyakokin Habasha kuma ta shiga cikin layukan da ke haɗe da juna wanda zai fara daga Tafkin Gargori ya ƙare aTafkin Abbe (ko Abhe Bad) a kan iyaka da Djibouti, kimanin kilomita 100 (mil 60 ko 70) daga shugabanTekun Tadjoura. Wannan shi ne babban magudanar ruwa mai cike da ruwa wanda ya mamaye wasu yankuna na yankunan, Amir, Oromia da Somalia, da kuma kudancin yankin Afar. A cewar Huntingford, a cikin ƙarni na 16 ana kiran kogin Awash babban kogin Dir kuma yana kwance a cikin ƙasar Musulmi.[1]
Awash ya tashi kudu da Mount Warqe, yamma da Addis Ababa a yankin Dandi, kusa da garin Ginchi, Yammacin Shewa Zone, Oromia. Bayan sun shiga ƙasan Babban kwarin Rift, Awash yana kwarara kudu don zagayaDutsen Zuqualla ta wata hanyar gabas zuwa can arewa maso gabas, kafin shiga ruwan Koka. A can, ana amfani da ruwa don ban-ruwa na gonakin rake fadamu. A can gefen ruwa, Awash din ya wuce garin Adama da kumaFilin shakatawa na Awash. Daga nan sai babban mai wadata, kogin Germama (ko Kasam) ya haɗa shi a bankin hagu, kafin ya juya zuwa arewa maso gabas da kimanin 11° N 40° 30'E har zuwa arewa zuwa 12° kafin a juya gabas gaba ɗaya don isa tafkin Gargori.
A cewar kayayyakin da Hukumar Kididdiga ta Tsakiya ta Habasha ta wallafa, Kogin Awash yana da tsayin kilomita 1200.[2] Frank Richardson Cana, a cikinEncyclopædia Britannica bugu na goma sha ɗaya labarin Abyssinia, ya bayyana ɓangarenta na tsakiya a matsayin "rafi mai zurfin gaske kusan ƙafa 200 [mita 61] faɗi da faɗi 4 ƙafa [mita 1.2] a lokacin rani, kuma yayin ambaliyar tana hawa 50 ko Ƙafa 60 [mita 15 ko 18] sama da alamar ƙaramin ruwa, don haka ambaliyar filayen na tsawon mil da yawa tare da bankunan biyu."[3]
Sauran rafuka na Awash sun haɗa da (cikin tsari zuwa sama): Logiya,Mille, Borkana, Ataye, Hawadi, Kabenna da Durkham Rivers. Garuruwa da birane tare da aikinta sun hada da Metehara, Awash, Gewane da Asaita.
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Mutane sun rayu a kwarin Awash kusan tun farkon halittar. Tsakanin Awash ya kasance inda aka samo yawancin abubuwan da ke jikin mutum.[4] Kwarin Awash daga kusan 9° N daga can ƙasa asalin gida ne na gargajiya na mutanen Afar da Issa.[5] An haɗa kwarin Awash a matsayin ɓangare na Fatagar, Ifat, da Shewa.[6]
Bature na farko da ya gano hanyar Awash har zuwa ƙarshenta a cikin yankin Aussa shine Wilfred Thesiger a cikin 1933/1934, wanda ya fara daga garin Awash, ya bi tafkin har zuwa ƙarshensa na ƙarshe a Tafkin Abhebad, kuma ya cigaba da balaguronsa zuwa gabas zuwa Tadjoura. (Kodayake mai binciken L.M. Nesbitt ya bi wasu sassan hanyar Awash a 1928, sai ya juya baya daga kogin Asaita ya wuce arewa ta hanyar bakin ciki na Afar zuwa Bahar Maliya.)[7]
A cikin 1960, an kammala aikin Koka Dam a hayin Kogin Awash a wani wuri kusa da kilomita 75 daga Addis Ababa. Tare da buɗewa, ya zama babbar hanyar samar da wutar lantarki a yankin. Sakamakon tafkin ruwa mai kyau, Tabkin Gelila (wanda kuma aka sani da Ruwan Koka), yana da yanki kusan kilomita murabba'in 180. Dukkanin tabki da madatsar ruwa suna fuskantar barazana ta hanyar ƙara lalatattun abubuwa.
An sanyawa Bankin Awash na Bankin Duniya don Kogin Awash.
Yanayi na Basin Kogin Awash galibi ya rinjayi motsi na yankin haɗuwa tsakanin juna (ITCZ). A yayin motsinta zuwa arewa a cikin watan Maris zuwa Afrilu da komawa zuwa kudu, (ITCZ) ya haifar da damuna biyu, mafi gajarta a watan Maris ('Belg'), da kuma wanda ya fi tsayi tsakanin Yuni da Satumba ('Kiremt'), wanda rabinsa ya fada daya lokacin damina. Lokacin-damina yakan zama kamar ruwa ne zuwa gabashin Habasha da kusan rashin daidaituwa zuwa yammacin Habasha. Lokaci tsakanin Oktoba zuwa Maris shine lokacin rani, ana kiransa 'Bega'.[8] Yanayin busassun bushewa zuwa yanayi mai ƙanƙumi a cikin Rift Valley. Sabanin haka, tsaunukan tsaunukan sama na sama sama da 1600 mm na ruwan sama a cikin ca. wata shida a shekara.[9]
Sauke ruwan da ke cikin ƙasa ya banbanta tsakanin ƙimomin da suka zarce 350mm a kowace shekara a cikin tsaunuka na sama kuma babu caji a ƙasan kwarin da ke ɓarke.[9][10] Yawanci ana sake maida ruwan karkashin ƙasa a cikin shinge da tsaunuka sama da 1900m al,[11] inda ruwan sama na shekara ya fi 1000mm.[10] Hakanan yakamata a sake yin ƙaramar siket na yanki a gefen ƙwanƙolin dutsen mai aman wuta.[11] Ruwan ƙasa na wucin gadi yana ɗaukar ƙarin wuri a gonakin ban ruwa a kwarin rift.[11] Saukewa daga asarar tashar kogi da kuma ta hanyar kutsawa daga tabkuna na taka rawa a cikin Babban Hawan Habasha (MER) da kudancin Afar.[10]
Yawancin Kogin Awash wani ɓangare ne na gandun dajin Habasha wanda yake da ƙoshin lafiya. A tsaunukan tsaunuka na ƙasar Habasha masu dawa da dazuzzuka da ƙauyukan tsaunuka na Habasha sun fi yawa. Acasar daji ta Acacia-Commiphora da ke da ƙuri'a da ƙuraje suna da ƙarancin tsauni a cikin Rift.[12]
Ciyawar tankin yana da tasirin tasirinanthropogenic.[9] A duk saman Basin Awash na sama da tsakiyar, ragowar nau'ukan savanna daban har yanzu ana bayyane a sarari. Sun kasance daga savannas na ƙaya a cikin ɓarkewar ƙasa, daji, ciyawa da savannas buɗe sama da mita 800 da savannas na katako a kan raƙuman ruwa da tsaunuka. Da kyar da gandun daji ya kasance a cikin Kogin Awash, tare da 'yan kaɗan ban da ƙananan tsire-tsire na eucalyptus. A wajen filin shakatawa na Filin shakatawa na Awash da dazuzzuka kusan an gama noma su da albarkatu. Wannan yana da asusun musamman na duk hanyoyin tudu.[13] Ta haka murfin itacen da ya warwatse ya kasance daidai da yanayin asalin savannas, yayin da aka maye gurbin ciyawar da albarkatu. Tsayi mafi tsayi kawai har yanzu yana nuna gandun daji mai haɗe. An sake yin sake dashe a wani tsauni wanda ba za'a iya shuka shi ba tare da gandun daji na coniferous na biyu. Abubuwan da aka noma sune (cututtukan daji), masara, dawa, wake da kayan lambu.[13] Da wuya makiyaya suka kasance a inda ake noma. Shanun suna kiwo a gefen filin da hanyoyin gefen hanya da kan raƙuman raƙuman ruwa. Wannan babban dalili ne guda daya na zaizayar kasa, saboda rufe ciyayin wani bangare. Suttura-kiwo al'ada ce ta gama gari a cikin Tekin Awash.[14]
Kasan kwarin Awash ɗayan ɗayan dabbobin daji ne na ƙarshe don ajiyar namun daji na Afirka. Dabba mai shayarwa yanzu ta mutu a Filin shakatawa na Yangudi Rassa, amma har yanzu ana samun ta a cikinMile-Serdo Wild Ass Reserve.[15] Sauran manyan dabbobin da ke yankin sun hada da Beisa Oryx, Soemmering's barewa, Dorcas gazelle, gerenuk da zebra na Grevy.
One or more of the preceding sentences incorporates text from a publication now in thepublic domain: Chisholm, Hugh, ed. (1911). "Abyssinia".Encyclopædia Britannica.1 (11th ed.). Cambridge University Press. p. 84.