Inda Sillasie

Inda Sillasie is a tabia or municipality in the Dogu'a Tembien district of the Tigray Region of Ethiopia. The tabia centre is in Migichi village, located approximately 13 km to the south-southeast of the woreda town Hagere Selam.

Inda Sillasie
Inda Abba Hadera holy water
Inda Sillasie
Location within Ethiopia
Coordinates: 13°33′N 39°12′E
CountryEthiopia
RegionTigray
ZoneDebub Misraqawi (Southeastern)
WoredaDogu'a Tembien
Area
 • Total51.26 km2 (19.79 sq mi)
Elevation
2,130 m (6,990 ft)
Time zoneUTC+3 (EAT)

Geography

The tabia stretches down from the foot of the Tsatsen ridge to Giba River, over a long ledge between the Inda Sillasie and Gra Agiam/Bitchoqo rivers. The highest peak is a hill at May Ch’elaqo (2330 m a.s.l.) and the lowest place is the confluence between Giba and Bitchoqo rivers (1440 m a.s.l.).

Geology

From the higher to the lower locations, the following geological formations are present:[1]

Geomorphology and soils

The main geomorphic unit, with corresponding soil types is the gently rolling Antalo Limestone plateau, holding cliffs and valley bottoms.[3]

See also: Soil in Dogu'a Tembien

Climate and hydrology

Climate and meteorology

The rainfall pattern shows a very high seasonality with 70 to 80% of the annual rain falling in July and August. Mean temperature in Migichi is 21 °C, oscillating between average daily minimum of 11.9 °C and maximum of 29.6 °C. The contrasts between day and night air temperatures are much larger than seasonal contrasts.[4]

Rivers

The Giba River is the most important river in the surroundings of the tabia. It flows towards Tekezze River and further on to the Nile. This river and its affluents have incised deep gorges which characterise the landscape.[5] The drainage network of the tabia is organised as follows:[6]

Whereas they are (nearly) dry during most of the year, during the main rainy season, these rivers carry high runoff discharges, sometimes in the form of flash floods. Especially at the beginning of the rainy season the water is brown-coloured, evidencing high soil erosion rates. For instance, in the rainy season the Inda Sillasie river, near its outlet, has an average discharge of 9 m3 per second, which amounts to 220 m3 per second during heavy storms.[7] Annually, some 60,000 tonnes of sediment are exported from the 121 km2 large catchment.

Springs

As there are no permanent rivers in the uplands, the presence of springs is of utmost importance for the local people. The main springs in the tabia are:[8]

  • Very strong springs at Dabba Hadera monastery
  • May Chelaqot in Akuwaw
  • Indasillasie Gedam in the gorge, downslope from Indaslassie village

Water harvesting

In this area with rains that last only for a couple of months per year, reservoirs of different sizes allow harvesting runoff from the rainy season for further use in the dry season.

  • Traditional surface water harvesting ponds, particularly in places without permanent springs, called rahaya
  • Horoyo, household ponds, recently constructed through campaigns[9]

Vegetation and exclosures

The tabia holds several exclosures, areas that are set aside for regreening.[10] Wood harvesting and livestock range are not allowed there. Besides effects on biodiversity,[11][12][13] water infiltration, protection from flooding, sediment deposition,[14] carbon sequestration,[15] people commonly have economic benefits from these exclosures through grass harvesting, beekeeping and other non-timber forest products.[16] The local inhabitants also consider it as “land set aside for future generations”.[17] In this tabia, some exclosures are managed by the EthioTrees project. They have as an additional benefit that the villagers receive carbon credits for the sequestered CO2,[18] as part of a carbon offset programme.[19] The revenues are then reinvested in the villages, according to the priorities of the communities;[20] it may be for an additional class in the village school, a water pond, conservation in the exclosures, or a store for incense.[21] The following exclosures are managed by the Ethiotrees project in Inda Sillasie municipality:[22]

  • Addi Meles, near the village of Migichi (64.84 ha)
  • Ch'elaqo, near the homonymous village (49.99 ha)

Settlements

The tabia centre Migichi holds a few administrative offices, a health post, a primary school, and some small shops.[8] There are a few more primary schools across the tabia. The main other populated places are:[6]

  • Akuwaw
  • Debre Genet
  • Ch’elaqo
  • Daboy Tsarba
  • Dabba Hadera
  • Inda Sillasie

Agriculture and livelihood

The population lives essentially from crop farming, supplemented with off-season work in nearby towns. The land is dominated by farmlands which are clearly demarcated and are cropped every year. Hence the agricultural system is a permanent upland farming system.[23] The farmers have adapted their cropping systems to the spatio-temporal variability in rainfall.[24] Especially the youngsters will go to the deep gorge of Giba river to harvest incense from Boswellia papyrifera trees.[25]

History and culture

History

The history of the tabia is strongly confounded with the history of Tembien.

Religion and churches
Inda Sillasie monastery

Most inhabitants are Orthodox Christians. The following churches are located in the tabia:

  • Sillasie monastery
  • Dabba Hadera monastery and well known destination of pilgrims
  • Kidane Mihret, in the forest, South of Dabba Hadera
  • Migichi Mika’el on top of a small mountain

Inda Siwa, the local beer houses

In the main villages, there are traditional beer houses (Inda Siwa), often in unique settings, where people socialise. Well known in the tabia centre are Kidan Gebretekle and Fetli Gebregziabher.[8]

Roads and communication

The main road Mekelle – Hagere Selam – Abiy Addi runs 10 to 15 km northwest of the tabia. A rural access road links most villages to the main asphalt road at Dongolo.

Tourism

Its mountainous nature makes the tabia fit for tourism.[26] As compared to many other mountain areas in Ethiopia the villages are quite accessible, and during walks visitors may be invited for coffee, lunch or even for an overnight stay in a rural homestead.[27] Dabba Hadera has grown into a pilgrimage centre where people stay for shorter or longer terms.

Touristic attractions
  • Sillasie monastery
  • Dabba Hadera monastery

Geotouristic sites

The high variability of geological formations and the rugged topography invite for geological and geographic tourism or "geotourism".[28] Geosites in the tabia include:

  • Viewpoint from Migichi Mika’el church to the wider surroundings
  • Limestone landscapes
  • Deeply incised gorges
  • Anthropogenic incense landscape on the slopes of Giba gorge
  • Views on the Addi Lihtsi large rockfall

Trekking routes
Trekking route 10 between Abba Hadera and Kidane Mihret monasteries

Trekking routes have been established in this tabia.[29] The tracks are not marked on the ground but can be followed using downloaded. GPX files.[30]

  • Trek 8V, from Inda Maryam Qorar to Dabba Hadera monastery, a pilgrims’ way across the tabia
  • Trek 9, from Inda Maryam Qorar to Sillasie monastery, a (less frequented) pilgrims’ way across the tabia
  • Trek 10, from Giba Gorge, along the Inda Sillassie gorge to Rubaksa; this trek also passes near Dabba Hadera, Kidane Mihret and Sillasie monasteries
gollark: I'm saying that it isn't actually useful because you can just... not tap on/off and it works fine.
gollark: Or possibly space elevators.
gollark: Automatic routing might be nice, but the fastest thing we have is either viaducts which have it built in anyway, or ICBM, which is not very automateable.
gollark: I don't see that being useful unless we actually do payment somehow, and who would *use* that?
gollark: Just document them as private. For interfaces, simply pass a table of functions or something.

See also
  • Dogu'a Tembien district.

References
  1. Sembroni, A.; Molin, P.; Dramis, F. (2019). Regional geology of the Dogu'a Tembien massif. In: Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
  2. Moeyersons, J. and colleagues (2006). "Age and backfill/overfill stratigraphy of two tufa dams, Tigray Highlands, Ethiopia: Evidence for Late Pleistocene and Holocene wet conditions". Palaeogeography, Palaeoclimatology, Palaeoecology. 230 (1–2): 162–178.
  3. Nyssen, Jan; Tielens, Sander; Gebreyohannes, Tesfamichael; Araya, Tigist; Teka, Kassa; Van De Wauw, Johan; Degeyndt, Karen; Descheemaeker, Katrien; Amare, Kassa; Haile, Mitiku; Zenebe, Amanuel; Munro, Neil; Walraevens, Kristine; Gebrehiwot, Kindeya; Poesen, Jean; Frankl, Amaury; Tsegay, Alemtsehay; Deckers, Jozef (2019). "Understanding spatial patterns of soils for sustainable agriculture in northern Ethiopia's tropical mountains". PLoS ONE. 14 (10): e0224041. doi:10.1371/journal.pone.0224041. PMC 6804989. PMID 31639144.
  4. Jacob, M. and colleagues (2019). Dogu'a Tembien's Tropical Mountain Climate. In: Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. doi:10.1007/978-3-030-04955-3_3. ISBN 978-3-030-04954-6.
  5. Amanuel Zenebe, and colleagues (2019). The Giba, Tanqwa and Tsaliet rivers in the headwaters of the Tekezze basin. In: Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. doi:10.1007/978-3-030-04955-3_14. ISBN 978-3-030-04954-6.
  6. Jacob, M. and colleagues (2019). Geo-trekking map of Dogu'a Tembien (1:50,000). In: Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
  7. Vanmaercke, M. and colleagues (2010). "J Soils Sediments". Geology. 10: 611–627. doi:10.1007/s11368-010-0203-9.
  8. What do we hear from the farmers in Dogu'a Tembien? [in Tigrinya]. Hagere Selam, Ethiopia. 2016. p. 100.
  9. "Developers and farmers intertwining interventions: the case of rainwater harvesting and food-for-work in Degua Temben, Tigray, Ethiopia: International Journal of Agricultural Sustainability: Vol 6, No 3". doi:10.3763/ijas.2008.0366. Cite journal requires |journal= (help)
  10. Aerts, R; Nyssen, J; Mitiku Haile (2009). "On the difference between "exclosures" and "enclosures" in ecology and the environment". Journal of Arid Environments. 73: 762–763.
  11. Aerts, R.; Lerouge, F.; November, E. (2019). Birds of forests and open woodlands in the highlands of Dogu'a Tembien. In: Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
  12. Mastewal Yami, and colleagues (2007). "Impact of Area Enclosures on Density and Diversity of Large Wild Mammals: The Case of May Ba'ati, Douga Tembien Woreda, Central Tigray, Ethiopia". East African Journal of Sciences. 1: 1–14.
  13. Aerts, R; Lerouge, F; November, E; Lens, L; Hermy, M; Muys, B (2008). "Land rehabilitation and the conservation of birds in a degraded Afromontane landscape in northern Ethiopia". Biodiversity and Conservation. 17: 53–69. doi:10.1007/s10531-007-9230-2.
  14. Descheemaeker, K. and colleagues (2006). "Sediment deposition and pedogenesis in exclosures in the Tigray Highlands, Ethiopia". Geoderma. 132 (3–4): 291–314. doi:10.1016/j.geoderma.2005.04.027.
  15. Wolde Mekuria, and colleagues (2011). "Restoration of Ecosystem Carbon Stocks Following Exclosure Establishment in Communal Grazing Lands in Tigray, Ethiopia". Soil Science Society of America Journal. 75(1): 246.
  16. Bedru Babulo, and colleagues (2006). "Economic valuation methods of forest rehabilitation in exclosures". Journal of the Drylands. 1: 165–170.
  17. Jacob, M. and colleagues (2019). Exclosures as Primary Option for Reforestation in Dogu’a Tembien. In: Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
  18. Reubens, B. and colleagues (2019). Research-based development projects in Dogu’a Tembien. In: Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
  19. EthioTrees on Plan Vivo website
  20. EthioTrees on Davines website
  21. Moens, T; Lanckriet, S; Jacob, M (2019). "Boswellia Incense in the Giba River Gorge". Geo-trekking in Ethiopia's Tropical Mountains. GeoGuide. Springer Nature. pp. 293–300. doi:10.1007/978-3-030-04955-3_19. ISBN 978-3-030-04954-6.
  22. De Deyn, Jonathan (2019). Benefits of reforestation on Carbon storage and water infiltration in the context of climate mitigation in North Ethiopia. Master thesis, Ghent University, Belgium.
  23. Nyssen, J.; Naudts, J.; De Geyndt, K.; Haile, Mitiku; Poesen, J.; Moeyersons, J.; Deckers, J. (2008). "Soils and land use in the Tigray highlands (Northern Ethiopia)". Land Degradation and Development. 19 (3): 257–274. doi:10.1002/ldr.840.
  24. Frankl, A. and colleagues (2013). "The effect of rainfall on spatio‐temporal variability in cropping systems and duration of crop cover in the Northern Ethiopian Highlands". Soil Use and Management. 29 (3): 374–383. doi:10.1111/sum.12041.
  25. Moens, T. and colleagues (2019). Boswellia Incense in the Giba River Gorge. In: Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. doi:10.1007/978-3-030-04955-3_19. ISBN 978-3-030-04954-6.
  26. Geo-trekking in Ethiopia's Tropical Mountains – The Dogu'a Tembien District. SpringerNature. 2019. ISBN 978-3-030-04954-6.
  27. Nyssen, Jan (2019). "Logistics for the Trekker in a Rural Mountain District of Northern Ethiopia". Geo-trekking in Ethiopia's Tropical Mountains. GeoGuide. Springer-Nature. pp. 537–556. doi:10.1007/978-3-030-04955-3_37. ISBN 978-3-030-04954-6.
  28. Miruts Hagos and colleagues (2019). Geosites, Geoheritage, Human-Environment Interactions, and Sustainable Geotourism in Dogu'a Tembien. In: Geo-Trekking in Ethiopia's Tropical Mountains, the Dogu'a Tembien District. SpringerNature. doi:10.1007/978-3-030-04955-3_1. ISBN 978-3-030-04954-6.
  29. Nyssen, Jan (2019). Description of Trekking Routes in Dogu'a Tembien. GeoGuide. Springer-Nature. pp. 557–675. doi:10.1007/978-3-030-04955-3_38. ISBN 978-3-030-04954-6.
  30. "Public GPS traces tagged with nyssen-jacob-frankl". OpenStreetMap. Retrieved 2019-10-11.
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