Addi Azmera is a ''tabia'' or municipality in the
Dogu'a Tembien
Dogu'a Tembien (, "Upper Tembien", sometimes transliterated as Degua Tembien) is a woreda in Tigray Region, Ethiopia. It is named in part after the former province of Tembien. Nowadays, the mountainous district is part of the Southeastern Tigray ...
district of the
Tigray Region
The Tigray Region, officially the Tigray National Regional State, is the northernmost regional state in Ethiopia. The Tigray Region is the homeland of the Tigrayan, Irob, and Kunama people. Its capital and largest city is Mekelle. Tigray is ...
of
Ethiopia
Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the ...
. The name refers to good spring rains (“azmera”), in relation to the local microclimate. The ''tabia'' centre is in Tukhul town, located approximately half-way between the ''woreda'' town
Hagere Selam and the regional capital
Mekelle
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
.
Geography
The ''tabia'' stretches on both sides of the main road that climbs towards Dogu’a Tembien after passing the bridge on Giba River. The highest location are the upper slopes of Imba Dogu’a (2590 m a.s.l.) and the lowest place along Giba River (1750 m a.s.l.). It comprises cultivated plains and steeper slopes, with often good vegetation (re)growth.
Geology
From the higher to the lower locations, the following geological formations are present:
* Mekelle
Dolerite
Diabase (), also called dolerite () or microgabbro,
is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained ...
*
Amba Aradam Formation
The Amba Aradam Formation is a Cretaceous sandstone formation in Ethiopia. It is up to 200 metres thick, for instance in the Degua Tembien district. As fossils are absent, the age of the Amba Aradam Formation was interpreted based on the age of a ...
* Agula Shale - there are gypsum quarries in this formation, exploited by the cement factory of
Mekelle
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
*
Antalo Limestone
The Antalo Limestone, also known as the Antalo Sequence, is a geological formation in Ethiopia. It is between 300 and 800 metres thick and comprises fossiliferous limestones and marls that were deposited in a reef. Marine microfossils have shown a ...
– many quarries for building stones and gravel
*
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...
alluvium
Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluv ...
and freshwater
tufa
Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes. Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits, which are known as travertine. ...
Geomorphology and soils
The main
geomorphic
Geomorphology (from Ancient Greek: , ', "earth"; , ', "form"; and , ', "study") is the scientific study of the origin and evolution of topographic and bathymetric features created by physical, chemical or biological processes operating at or n ...
unit is the gently undulating Agula
shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...
plateau with
dolerite
Diabase (), also called dolerite () or microgabbro,
is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained ...
. Corresponding soil types are:
* Dominant soil type: stony, dark cracking
clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4).
Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...
s with good natural fertility (Vertic
Cambisol
A Cambisol in the World Reference Base for Soil Resources (WRB) is a soil in the beginning of soil formation. The horizon differentiation is weak. This is evident from weak, mostly brownish discolouration and/or structure formation in the soil pr ...
)
* Associated soil types
** rock outcrops, stony and shallow soils (Lithic
Leptosol
A Leptosol in the World Reference Base for Soil Resources (WRB) is a very shallow soil over hard rock or a deeper soil that is extremely gravelly and/or stony. Leptosols cover approximately 1.7 billion hectares of the Earth's surface. They are ...
)
** red-brownish
loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–sil ...
y soils with good natural fertility (Chromic
Luvisol
Luvisols are a group of soils, comprising one of the 32 Reference Soil Groups in the international system of soil classification, the World Reference Base for Soil Resources The World Reference Base for Soil Resources (WRB) is an international soi ...
)
* Inclusions
** deep, dark cracking
clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4).
Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...
s on calcaric material with good fertility but poor drainage (
Vertisol
A vertisol, or vertosol, is a soil type in which there is a high content of expansive clay minerals, many of them known as montmorillonite, that form deep cracks in drier seasons or years. In a phenomenon known as argillipedoturbation, alternat ...
)
Rainfall in Addi Azmera
Due to its great difference in elevation, with slopes turned towards the wind direction (from east) during the short spring rains,
orographic rain
In meteorology, the different types of precipitation often include the character, formation, or phase of the precipitation which is falling to ground level. There are three distinct ways that precipitation can occur. Convective precipitation is g ...
s occur in that season. This results in sufficient soil moisture for growing crops in that season. In such years with good spring rains (locally called “Azmera”) the whole plain, from Qarano to Afedena is sown with “azmera” crops, particularly
sorghum
''Sorghum'' () is a genus of about 25 species of flowering plants in the grass family (Poaceae). Some of these species are grown as cereals for human consumption and some in pastures for animals. One species is grown for grain, while many othe ...
. Hence the name “Addi Azmera”.
Springs
Besides Giba River at the eastern (lower) side of the ''tabia'', there are no permanent rivers. Hence the presence of springs is of utmost importance for the local people. However, in relation to the overall presence of limestone, there are only very few strong springs:
* Arba’ite Insessa in Zerfenti
* May Egam in Zerfenti
Reservoirs
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. Overall they suffer from siltation. Yet, they strongly contribute to greening the landscape, either through irrigation or seepage water. Main reservoirs are:
*
Lake Giba
Lake Giba is a reservoir under construction at the border of the Inderta; Kilte Awula'ilo and Dogu’a Tembien ''woredas'' of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir is under construction in 2020. It will colle ...
, a 350 million m³ reservoir under construction on Giba river, just before it enters the ''tabia''. The reservoir is mainly intended to provide water to
Mekelle
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
. This large lake, once established, will strongly impact the lower part of Addi Azmera. Indeed, the lithology of the dam building site is
Antalo Limestone
The Antalo Limestone, also known as the Antalo Sequence, is a geological formation in Ethiopia. It is between 300 and 800 metres thick and comprises fossiliferous limestones and marls that were deposited in a reef. Marine microfossils have shown a ...
. Part of its water is anticipated to be lost through
seepage
Soil mechanics is a branch of soil physics and applied mechanics that describes the behavior of soils. It differs from fluid mechanics and solid mechanics in the sense that soils consist of a heterogeneous mixture of fluids (usually air and wat ...
; the positive side-effect is that this will contribute to
groundwater recharge
Groundwater recharge or deep drainage or deep percolation is a hydrologic process, where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in ...
in the downstream areas, which largely belong to Addi Azmera.
* Traditional surface water harvesting ponds, particularly in places without permanent springs, called ''rahaya''
* ''Horoyo'', household ponds, recently constructed through campaigns
Vegetation and exclosures
The ''tabia'' holds several
exclosure
An exclosure, in an area being used extensively for grazing, is a limited area from which unwanted browsing animals, such as domestic cattle or wildlife such as deer, are excluded by fencing or other means.
Environmental protection
Most commonl ...
s, areas that are set aside for regreening. Wood harvesting and livestock range are not allowed there. Besides effects on
biodiversity
Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') l ...
,
water infiltration
Infiltration is the process by which water on the ground surface enters the soil. It is commonly used in both hydrology and soil sciences. The infiltration capacity is defined as the maximum rate of infiltration. It is most often measured in meter ...
, protection from flooding,
sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand an ...
deposition,
carbon sequestration
Carbon sequestration is the process of storing carbon in a carbon pool. Carbon dioxide () is naturally captured from the atmosphere through biological, chemical, and physical processes. These changes can be accelerated through changes in land ...
, people commonly have economic benefits from these exclosures through grass harvesting, beekeeping and other
non-timber forest product
Non-timber forest products (NTFPs) are useful foods, substances, materials and/or commodities obtained from forests other than timber. Harvest ranges from wild collection to farming. They typically include game animals, fur-bearers, nuts, seed ...
s. The local inhabitants also consider it as “land set aside for future generations”. In this ''tabia'', some exclosures are managed by the
EthioTrees
The EthioTrees Ecosystem Restoration Association, in short EthioTrees, established in 2016, is a project for environmental rehabilitation and woodland restoration in Dogu’a Tembien (Ethiopia).
Context
Since many years, there has been severe ...
project. They have as an additional benefit that the villagers receive
carbon credit
A carbon credit is a generic term for any tradable certificate or permit representing the right to emit a set amount of carbon dioxide or the equivalent amount of a different greenhouse gas (tCO2e).
Carbon credits and carbon markets are a compo ...
s for the
sequestered CO
2,
as part of a
carbon offset
A carbon offset is a reduction or removal of emissions of carbon dioxide or other greenhouse gases made in order to compensate for emissions made elsewhere. Offsets are measured in tonnes of carbon dioxide-equivalent (CO2e). One ton of carbon ...
programme.
[EthioTrees on Plan Vivo website](_blank)
/ref> The revenues are then reinvested in the villages, according to the priorities of the communities;[EthioTrees on Davines website](_blank)
/ref> it may be for an additional class in the village school, a water pond, or conservation in the exclosures. The following exclosures are managed by the Ethiotrees project in Addi Azmera:
* Afedena (exclosure), near the homonymous village (62.92 ha)
* Sesemat (exclosure), near the homonymous village (48.01 ha)
* Tukhul (exclosure), near the homonymous village (35.92 ha)
Livelihood
The population lives essentially from crop farming, supplemented with off-season work in nearby towns. The land is dominated by farmland
Agricultural land is typically land ''devoted to'' agriculture, the systematic and controlled use of other forms of lifeparticularly the rearing of livestock and production of cropsto produce food for humans. It is generally synonymous with bot ...
s which are clearly demarcated and are cropped every year. Hence the agricultural system
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
is a permanent farming system
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
.
The village of Zerfenti is one of the first places in Ethiopia where Ecosan
Ecological sanitation, commonly abbreviated as ecosan (also spelled eco-san or EcoSan), is an approach to sanitation provision which aims to safely reuse excreta in agriculture. It is an approach, rather than a technology or a device which is ch ...
toilets have been implemented (by the School WatSani project)
Population
The ''tabia'' centre Tukhul has grown to a little town with a few administrative offices, a health post, a primary school, some shops and small restaurants. Thursday is the market day. There are a few more primary schools across the ''tabia''. The original Tukhul village, further uphill (also called “La’ilay Tukhul”) has been largely abandoned, as the inhabitants moved to the road, where they established small businesses while keeping their farmlands. The main other populated places are:
Religion and churches
Most inhabitants are Orthodox Christians. The following churches are located in the ''tabia'':
* Mesenqoy Mika’el
* Zerfenti Maryam
* Addi Ganfur Arba'ite Insessa
* Rufael
* Sesemat Giyergis
* Miheni Abba Gabir
History
The history of the ''tabia'' is strongly confounded with the history of Tembien
Tembien ( Tigrigna: ተምቤን) is a historic region in Tigray Region and former provinces of Ethiopia. It is a mountainous area of that country. During the reforms in 1994–95, the old provinces were replaced with regions, zones and woredas. ...
.
Roads and communication
The main road Mekelle
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
– Hagere Selam – Abiy Addi
Abiy Addi (also spelled Abi Addi; Tigrigna ዓብዪ ዓዲ "Big town") is a town in central Tigray Region, Tigray, Ethiopia. Abiy Addi is at the southeastern edge of the Kola Tembien woreda, of which it is the capital.
Overview
The town is di ...
runs through Tukhul and across the ''tabia''. There are regular bus services to these towns. Further, rural access roads link Mesenqoy and La’ilay Tukhul to Tukhul and the main asphalt road.
Schools
Almost all children of the ''tabia'' are schooled, though in some schools there is lack of classrooms, directly related to the large intake in primary schools over the last decades. Schools in the ''tabia'' include Zerfenti school, Sesemat school and Afedena school.
Tourism
Its mountainous nature and proximity to Mekelle
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
makes the ''tabia'' fit for tourism.
Geotouristic sites
The high variability of geological formations and the rugged topography invite for geological and geographic tourism or "geotourism". Geosites in the ''tabia'' include:
* Gypsum quarries
* Limestone quarries
* May Qarano tufa dam (now occupied by the Giba dam building works)
* Miheni exclosure
* Mi’iraf Janhoy (group of 3 olive trees)
Birdwatching
Birdwatching
Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science. A birdwatcher may observe by using their naked eye, by using a visual enhancement device like binoculars or a telescope, b ...
can be done particularly in exclosures and forests. A dozen bird-watching sites have been inventoried in the ''tabia'' and mapped. The bird species are documented on the main Dogu'a Tembien
Dogu'a Tembien (, "Upper Tembien", sometimes transliterated as Degua Tembien) is a woreda in Tigray Region, Ethiopia. It is named in part after the former province of Tembien. Nowadays, the mountainous district is part of the Southeastern Tigray ...
page.
Trekking routes
Trekking routes have been established in this ''tabia''. The tracks are not marked on the ground but can be followed using downloaded .GPX files. As a landmark, the three olive trees (“Mi’iraf Janhoy” at 1940 metres above sea level) along the main road are departure point of:
* Trek 14, to the west of the ''tabia'', and further on, over the ridges, up to Hagere Selam
* Trek 23, to the north of the ''tabia'' and further to ''Ekli Imba'' the peak of the Medayq massif that dominates the landscape at the north (2799 m)
''Inda Siwa'', the local beer houses
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'' are
* Abrehet Reda at Tukhul
* Kiros Adane at Tukhul
* Wedase Gebregziabher at Tukhul
Accommodation and facilities
The facilities are very basic. 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
Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a List of zones of Ethiopia, special zone and capital city, capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta province, Enderta Awrajj ...
.
More detailed information
For more details on environment, agriculture, rural sociology, hydrology, ecology, culture, etc., see the overall page on the Dogu'a Tembien
Dogu'a Tembien (, "Upper Tembien", sometimes transliterated as Degua Tembien) is a woreda in Tigray Region, Ethiopia. It is named in part after the former province of Tembien. Nowadays, the mountainous district is part of the Southeastern Tigray ...
district.
References
{{Tabias (municipalities) of Dogu’a Tembien
Populated places in the Tigray Region
Dogu'a Tembien