Tsech'i River
River in the Tembien highlands of Ethiopia From Wikipedia, the free encyclopedia
The Tsech'i is a river of the Nile basin. Rising in the mountains of Dogu’a Tembien in northern Ethiopia, it flows westward to empty finally in Giba and Tekezé River.[1]
| Tsech'i | |
|---|---|
 The Tsech'i River gorge at Menachek | |
  Tsech'i River in Dogu’a Tembien | |
| Location | |
| Country | Ethiopia |
| Region | Tigray Region |
| District (woreda) | Dogu’a Tembien |
| Physical characteristics | |
| Source | |
| • location | Inda Maryam Qorar in Seret municipality |
| • elevation | 2,552 m (8,373 ft) |
| Mouth | Tanqwa River |
• location | May Lomin at the border of Aregen and Abiy Addi |
• coordinates | 13.62°N 39.021°E |
• elevation | 1,888 m (6,194 ft) |
| Length | 14.5 km (9.0 mi) |
| Width | |
| • average | 20 m (66 ft) |
| Basin features | |
| River system | Permanent river |
| Tributaries | |
| • left | May Qoqah, Arwadito, Adawro River [1] |
| Waterfalls | several |
| Topography | Mountains and deep gorges |
It is a confined ephemeral river, locally meandering in its narrow alluvial plain, with an average slope gradient of 46 metres per kilometre. With its tributaries, the river has cut a deep gorge.[2]
Runoff mostly happens in the form of high runoff discharge events that occur in a very short period (called flash floods). These are related to the steep topography, often little vegetation cover and intense convective rainfall. The peaks of such flash floods have often a 50 to 100 times larger discharge than the preceding baseflow.[2] The magnitude of floods in this river has however been decreased due to interventions in the catchment. On steep slopes, exclosures have been established; the dense vegetation largely contributes to enhanced infiltration, less flooding and better baseflow.[3] Physical conservation structures such as stone bunds[4][5] and check dams also intercept runoff.[6][7]
Transhumance takes place in the summer rainy season, when the lands near the villages are occupied by crops. Young shepherds will take the village cattle down to the gorge and overnight in small caves. The gorges are particularly attractive as a transhumance destination zone, because there is water and good growth of semi-natural vegetation.[8]
Boulders and pebbles encountered in the river bed can originate from any location higher up in the catchment. In the uppermost stretches of the river, only rock fragments of the upper lithological units will be present in the river bed, whereas more downstream one may find a more comprehensive mix of all lithologies crossed by the river. From upstream to downstream, the following lithological units occur in the catchment.[9]
During its course, the Tsech'i river passes through three municipalities (Seret, Menachek and in the lower course it is the border between Menachek and Aregen).[1]
Trekking routes have been established across and along this river.[11] The tracks are not marked on the ground but can be followed using downloaded .GPX files.[12] Treks 7 and 19 follow the ridge at the southern side of the catchment with continuous views on Tsech’i gorge.
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