Tafkin Kossou

Tafkin Kossou
General information
Height above mean sea level (en)	185 m
Tsawo	1,500 m
Labarin ƙasa
Tsarin Daidaiton Labarin Kasa	7°09′N 5°35′W
Kasa	Ivory Coast
Ƙasantuwa a yanayin ƙasa	Kogin Bandama
Hydrography (en)
Inflow (en)	duba Kogin Bandama
Outflows (en)	Kogin Bandama

Tafkin Kossou (Faransanci: Lac de Kossou) shine babban tabki na Cote d'Ivoire. Ya ta'allaka ne akan Kogin Bandama na tsakiyar kasar. Tafki ne na wucin gadi, wanda aka kirkira a cikin shekarata 1973 ta hanyar lalata Kogin Bandama a Kossou (Dam ɗin Kossou). Kimanin mutanen Baoulé 75,000 suka yi gudun hijirar ta tafkin.

Taswirar Côte d'Ivoire da ke nuna yankin Tafkin Kossou da ke tsakiyar yankin

Tarihi

Tafkin Kossou an kirkireshi ne bayan an gina madatsar ruwa ta Kossou a fadin kogin Bandama wanda aka kammala shi a shekarar 1973. An kammala aikin Dam din Kossou a karkashin kulawar shirin Majalisar Dinkin Duniya na Raya Kasa, hukumar da abin ya shafa itace Marubuciya de Valle du Bandama (ADV). Hakan ya hada da tsugunar da mutane kimanin 75,000 daga matsugunai 200, zuwa wasu sabbin kauyuka 54 wadanda kamfanin ADV ya gina, 32 a yankin dajin da kuma 22 a yankin savanna. An sake tsugunar da mutane 22,000 kafin a fara shigar da ruwa a cikin 1971.

An gina madatsar ruwa daga ƙasa da dutse mai ƙwanƙwasa, kuma yana da tsayi kusan 1,500 m (5,000 ft). Tsibirin da aka kama yana da ikon samar da wutar lantarki mai karfin megawatt 174. Lokacin da ya cika, tabkin zai sami samaniya kimanin 206 m (676 ft) sama da matakin teku, tsawonsa ya kai kilomita 180 (112 mi) da kuma nisa na kilomita 45 (mi 28), yankin da ya kai 1,855 km2 (716 sq mi) da damar 28.8 × 109 m3 (1.017 × 1012 cu ft).

Baya ga samar da karfi, kirkirar tafkin an yi shi ne da nufin karfafa gwiwar mazauna yankin su cigaba da zama a yankin tare da amfani da ruwan wajen ban-ruwa ga albarkatun gona, kuma ana fatan cewa masana'antar kamun kifi za ta bunkasa. A cikin 1975 tafkin ya kai mafi girman tsayi sama da matakin teku na 193 m (633 ft), a waccan yanayin samansa ya kusan 50% na cikakkiyar damar sa. Zuwa 1994 ba ta kara fadada ba saboda raguwar ruwan sama a yankin da take kamawa, da kuma dan diban wani ruwa ta hanyar dikes a can gaba.

Ruwan sama a yankin da aka kama ya cigaba da ƙasa da matsakaicin lokacin, kuma yankin tabkin ya kasance kusan 50% na abin da aka zata; da yawa daga cikin manoman da aka kora daga matsugunansu sun yi iƙirarin mallakar gonakinsu. A cikin 1983, mummunan fari da gobarar daji da yawa sun lalata amfanin gona da kofi da gonakin koko a kusa da tafkin, wanda ya haifar da babbar asara ta tattalin arziki.

A cikin 2019, ana tunanin yin wani shiri don ƙirƙirar makircin hoto mai aiki da hasken rana a saman tafkin. Yana da damar shigar tsakanin megawatt 10 zuwa 20.

Dabbobin daji

Wani fasalin farkon tafkin shine cigaban yawan mutanen kabejin ruwa mai cutarwa (Pistia stratiotes) a saman ruwa. Akwai Dorinar-ruwa wato; hippopotamuses da sauran dabbobin da ke cikin ruwa a tafkin, kuma an rubuta adadin tsuntsayen da suke zama a nan ko suna ziyartar yankin.

Kafin a gina madatsar ruwan, babban nau'in kifin da aka samu a cikin kogin shi ne Labeo coubie da Alestes rutilus, tare da samun Tilapia zillii a cikin kwantan baya. Zuwa shekarar 1975, jinsunan da aka kama a cikin tabkin sun hada da kogin Nilu (Lates niloticus), Distichodus rostratus, Alestes baremoze, Brycinus nurse, Labeo senegalensis, Pellonula afzeliusi, kifin man shanu na Afirka (Schilbe mystus) da mudfish (Clarias anguillaris).