Addi Walka

The tabia stretches down from Dogu'a Tembien's northern ridges towards the Agefet valley. The highest place is the cliff under Arebay (2,500 m.a.s.l.) and the lowest place along Agefet River (1,728 m.a.s.l.).

File: Edaga Arbi glacials.jpg

File:Valley in Addi Walka.jpg

From the higher to the lower locations, the following geological formations are present:{{cite book |last1=Sembroni |first1=A. |last2=Molin |first2=P. |last3=Dramis |first3=F. |title=Regional geology of the Dogu'a Tembien massif. In: Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District |date=2019 |publisher=SpringerNature |isbn=978-3-030-04954-6 |url=https://www.springer.com/gp/book/9783030049546}}

• Amba Aradam Formation
• Agula Shale{{cite journal |last1=Bosellini |first1=A. |last2=Russo |first2=A. |last3=Fantozzi |first3=P. |last4=Assefa |first4=G. |last5=Tadesse |first5=S. |title=The Mesozoic succession of the Mekelle Outlier (Tigrai Province, Ethiopia). |journal=Mem. Sci. Geol. |date=1997 |volume=49 |pages=95–116}}
• Antalo Limestone
• Adigrat Sandstone
• Edaga Arbi Glacials
• Quaternary alluvium and freshwater tufa{{cite journal |last1=Moeyersons |first1=J. and colleagues |title=Age and backfill/overfill stratigraphy of two tufa dams, Tigray Highlands, Ethiopia: Evidence for Late Pleistocene and Holocene wet conditions. |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |date=2006 |volume=230 |issue=1–2 |pages=162–178 |doi=10.1016/j.palaeo.2005.07.013 |bibcode=2006PPP...230..165M }}

{{See also|Soil in Dogu'a Tembien}}

The rainfall pattern shows a very high seasonality with 70 to 80% of the annual rain falling in July and August. Mean temperature in Kelkele is 18.8 °C, oscillating between average daily minimum of 10.5 °C and maximum of 26.7 °C. The contrasts between day and night air temperatures are much larger than seasonal contrasts.{{cite book |last1=Jacob |first1=M. and colleagues |title=Geo-trekking in Ethiopia's Tropical Mountains |chapter=Dogu'a Tembien's Tropical Mountain Climate |series=GeoGuide |date=2019 |pages=45–61 |publisher=SpringerNature |isbn=978-3-030-04954-6 |doi=10.1007/978-3-030-04955-3_3 |s2cid=199105560 }}

As there are no permanent rivers, the presence of springs is of utmost importance for the local people. The main springs in the tabia are:{{cite book | title=What do we hear from the farmers in Dogu'a Tembien? [in Tigrinya] |date=2016 |location=Hagere Selam, Ethiopia |pages=100 |url=https://www.researchgate.net/publication/311151542}}

• May Deqisa'iri in Bet Moka'i
• Springs along Agefet River

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, are called rahaya. Horoyo, household ponds, have been recently constructed through campaigns.[https://www.tandfonline.com/doi/abs/10.3763/ijas.2008.0366 Developers and farmers intertwining interventions: the case of rainwater harvesting and food-for-work in Degua Temben, Tigray, Ethiopia]

The tabia centre Kelkele holds a few administrative offices, a health post, a primary school, and some small shops. There are a few more primary schools across the tabia. The main other populated places are:{{cite book |last1=Jacob |first1=M. and colleagues |title=Geo-trekking map of Dogu'a Tembien (1:50,000). In: Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District |date=2019 |publisher=SpringerNature |isbn=978-3-030-04954-6 |url=https://www.springer.com/gp/book/9783030049546}}

• Bet Moka'e
• Kidmi Tseged
• Ch'iwa
• Halah Gheralta
• Ziban Kebkeb
• Hatemti
• Hazgi

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.{{cite journal |last1= Nyssen|first1= J.|last2= Naudts|first2= J.|last3= De Geyndt|first3= K.|last4= Haile|first4= Mitiku|last5= Poesen|first5= J.|last6= Moeyersons|first6= J.|last7= Deckers|first7= J.|title=Soils and land use in the Tigray highlands (Northern Ethiopia) |journal=Land Degradation and Development |date=2008 |volume=19 |issue= 3|pages=257–274 |doi= 10.1002/ldr.840|s2cid= 128492271}}

The farmers have adapted their cropping systems to the spatio-temporal variability in rainfall.{{cite journal |last1=Frankl |first1=A. and colleagues |title=The effect of rainfall on spatio‐temporal variability in cropping systems and duration of crop cover in the Northern Ethiopian Highlands |journal=Soil Use and Management |date=2013 |volume=29 |issue=3 |pages=374–383 |doi=10.1111/sum.12041 |url=https://biblio.ugent.be/publication/3123393 |hdl=1854/LU-3123393 |s2cid=95207289 |hdl-access=free }}

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

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

• Medhane Alem
• Hatemti Maryam
• Inda Gabir Amblo
• Abune Ego'id
• Bet Moka'e Mika'el
• Abune Ayezgi
• Abune Aregawi
• Kidane Mihret
• Bet Moka'e Mika'el

In the main villages, there are traditional beer houses (Inda Siwa), often in unique settings, which are a good place for resting and chatting with the local people. Most renown in the tabia is Tkun Asgedom at Bet Moka'e.

The main road Mekelle – Hagere Selam – Abiy Addi runs some 7–12 km south of the tabia. People have the choice to walk to Ala'isa or Tsigereda to find bus services to the towns. A rural access road (sometimes disused) links Addi Walka to the main asphalt road.

File:View from Iriya church towards Addi Walka.jpg church towards Addi Walka]]

Its mountainous nature and proximity to Mekelle makes the tabia fit for tourism.{{cite book |title= Geo-trekking in Ethiopia's Tropical Mountains - The Dogu'a Tembien District |date=2019 |publisher=SpringerNature |isbn=978-3-030-04954-6 |url=https://www.springer.com/gp/book/9783030049546}}

The high variability of geological formations and the rugged topography invites for geological and geographic tourism or "geotourism".{{cite book |last1=Miruts Hagos and colleagues |title=Geo-trekking in Ethiopia's Tropical Mountains |chapter=Geosites, Geoheritage, Human-Environment Interactions, and Sustainable Geotourism in Dogu'a Tembien |series=GeoGuide |date=2019 |pages=3–27 |publisher=SpringerNature |isbn=978-3-030-04954-6 |doi=10.1007/978-3-030-04955-3_1 |s2cid=199095921 }} Geosites in the tabia include especially the dissected, Grand Canyon-like landscapes.

A trekking route has been established in this tabia.{{cite book |date=2019 |publisher=Springer-Nature |pages=557–675 |doi=10.1007/978-3-030-04955-3_38 |series=GeoGuide |last1=Nyssen |first1=Jan |title=Geo-trekking in Ethiopia's Tropical Mountains |chapter=Description of Trekking Routes in Dogu'a Tembien |isbn=978-3-030-04954-6 |s2cid=199271514 }} The track of Gh1, from south to north across the tabia, is not marked on the ground but can be followed using downloaded .GPX files.{{Cite web|url=https://www.openstreetmap.org/traces/tag/nyssen-jacob-frankl|title=Public GPS Traces tagged with nyssen-jacob-frankl}}

The facilities are very basic.{{cite book |chapter=Logistics for the Trekker in a Rural Mountain District of Northern Ethiopia|date=2019 |publisher=Springer-Nature |pages=537–556 |doi=10.1007/978-3-030-04955-3_37 |title=Geo-trekking in Ethiopia's Tropical Mountains |series=GeoGuide |last1=Nyssen |first1=Jan |isbn=978-3-030-04954-6 |s2cid=199198251 }} One may be invited to spend the night in a rural homestead or ask permission to pitch a tent. Hotels are available in Hagere Selam and Mekelle.

{{reflist}}

{{Geographic location

|Centre = Addi Walka

|North = Munguda

|East = Tsigereda

|South = Arebay

|West = Haddinnet

}}

{{ Tabias (municipalities) of Dogu’a Tembien }}

Category:Dogu'a Tembien

Category:Populated places in the Tigray Region