The church forests in Ethiopia are small fragments of forest surrounding Ethiopian Orthodox Tewahedo Churches. Northern Ethiopia was once covered in forests, but due to deforestation for agriculture, only about 4% of the original forested lands remain. Church leaders have long held the belief that a church needs to be surrounded by a forest, and these sacred forests have been tended for some 1,500 years. Aerial photographs of church forests show them as small verdant islands surrounded by vast areas of tilled lands and pasture. There are around 35,000 individual church forests in the region, ranging in size from 3 hectares (7.4 acres) to 300 hectares (740 acres), with the average around 5 hectares (12 acres). It is estimated that these church forests represent the bulk of the remaining forested land in the Ethiopian Highlands. [1] [2]
The isolated forests have been dwindling in size due to edge effects through encroachment by the surrounding agriculture, both from the grazing of cattle that would shelter and feed in the forests, [3] as well as encroaching tilling of fields. [4] The outermost trees of these islands of forest were found to be stressed and dying. [5]
Forest ecologist Dr. Alemayehu Wassie [6] and conservation scientist Meg Lowman [2] were alarmed at the rate at which the church forests were shrinking. If reforestation would ever be likely in the future, they needed to help conserve and increase these last remaining forests which are the natural seed banks for local genetic diversity of tree species. [7] [8]
Studies were conducted and it was found almost no new growth of tree species occurred in areas where cattle were allowed to graze, as the cattle would eat all the young seedlings that germinated. [3] Similarly, human incursions into the forest creating pathways at random, also stressed the church forests. [4] Researchers found that church forests that were surrounded by walls — a rare occurrence — had a higher density and variety of seedlings than forests without walls, "because it likely reduced access to the forests by grazers and directed human visitors to trails." [9]
Working with the religious leaders, it was decided to exclude cattle by building dry stone walls around the forests. Entry gates were included and people were allowed in and out through established pathways. The dry stone walls were similar in construction to the walls of the inner churchyard. Locals helped collect stones from their fields, which in turn helped their crops by removing the rocks from the fields, and also helped to build walls around their local church forests. [5] [10]
The religious significance of the forest is equalled by its ecological functions. These sacred oases raise water tables, lower temperature, block destructive winds and are home to yield-boosting pollinators essential to surrounding agriculture. [11]
Birds, bees, monkeys, caracals and other wildlife were found to have returned to the church forests. Tree seeds were germinating and seedlings growing. In some cases they built the walls beyond the perimeter of the forest to extend the size of the forest. [5]
Reforestation is the practice of restoring previously existing forests and woodlands that have been destroyed or damaged. The prior forest destruction might have happened through deforestation, clearcutting or wildfires. Three important purposes of reforestation programs are for harvesting of wood, for climate change mitigation, and for ecosystem and habitat restoration purposes. One method of reforestation is to establish tree plantations, also called plantation forests. They cover about 131 million ha worldwide, which is 3% of the global forest area and 45% of the total area of planted forests.
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, such as clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on Earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area.
A savanna or savannah is a mixed woodland-grassland biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Four savanna forms exist; savanna woodland where trees and shrubs form a light canopy, tree savanna with scattered trees and shrubs, shrub savanna with distributed shrubs, and grass savanna where trees and shrubs are mostly nonexistent.
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.
Bale Mountains National Park is a national park in Ethiopia. The park encompasses an area of approximately 2,150 km2 (830 sq mi) in the Bale Mountains and Sanetti Plateau of the Ethiopian Highlands.
Margaret D. Lowman, Ph.D. a.k.a. Canopy Meg is an American biologist, educator, ecologist, writer, explorer, and public speaker. Her expertise involves canopy ecology, canopy plant-insect relationships, and constructing canopy walkways.
Dogu'a 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 Zone. The administrative centre of this woreda is Hagere Selam.
The Walia ibex is a vulnerable species of ibex. It is sometimes considered an endemic subspecies of the Alpine ibex. If the population were to increase, the surrounding mountain habitat would be sufficient to sustain only 2,000 ibex. The adult Walia ibex's only known wild predator is the hyena. However, young ibex are often hunted by a variety of fox and cat species. The ibex are members of the goat family, and the Walia ibex is the southernmost of today's ibexes. In the late 1990s, the Walia ibex went from endangered to critically endangered due to the declining population. The Walia ibex is also known as the Abyssinian ibex. Given the small distribution range of the Walia ibex in its restricted mountain ecosystem, the presence of a large number of domestic goats may pose a serious threat that can directly affect the survival of the population.
Conservation grazing or targeted grazing is the use of semi-feral or domesticated grazing livestock to maintain and increase the biodiversity of natural or semi-natural grasslands, heathlands, wood pasture, wetlands and many other habitats. Conservation grazing is generally less intensive than practices such as prescribed burning, but still needs to be managed to ensure that overgrazing does not occur. The practice has proven to be beneficial in moderation in restoring and maintaining grassland and heathland ecosystems. Conservation or monitored grazing has been implemented into regenerative agriculture programs to restore soil and overall ecosystem health of current working landscapes. The optimal level of grazing and grazing animal will depend on the goal of conservation. Different levels of grazing, alongside other conservation practices, can be used to induce desired results.
Pando is the world's largest tree, a quaking aspen located in Sevier County, Utah, United States, in the Fishlake National Forest. A male clonal organism, Pando has an estimated 47,000 stems (ramets) that appear to be individual trees but are not, because those stems are connected by a root system that spans 42.8 ha. Pando is the largest tree by weight and landmass and the largest known aspen clone. Pando was identified as a single living organism because each of its stems possesses identical genetic markers. The massive interconnected root system coordinates energy production, defense and regeneration across the tree's landmass. Pando spans 1.08 km × 0.72 km at its widest expanse along of the southwestern edge of the Fishlake Basin and lies 0.69 km (0.43 mi) to the west of Fish Lake, the largest natural mountain freshwater lake in Utah. Pando's landmass spreads from 2,700 m (8,900 ft) above sea level to approximately 2,773 m (9,098 ft) above sea level along the western side of a steep basin wall. Pando is estimated to weigh collectively 6,000 tonnes (6,000,000 kg), or 13.2 million pounds, making it the heaviest known organism. The Pando Tree's 43-hectare (106-acre) expanse also makes Pando the largest tree of any kind, by way of landmass.
Amanit is a tabia or municipality in the Dogu'a Tembien district of the Tigray Region of Ethiopia. The tabia centre is Addi Qeshofo village, located approximately 15 km to the southeast of the woreda town Hagere Selam.
Debre Nazret is a tabia or municipality in the Inderta district of the Tigray Region of Ethiopia. It belonged to Dogu'a Tembien up to January 2020. The tabia centre is in Togogwa town, located approximately 19 km to the east-southeast of Hagere Selam and 25 km to the west of Mekelle.
Addi Azmera is a tabia or municipality in the Dogu'a Tembien district of the Tigray Region of Ethiopia. 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.
Ayninbirkekin is a tabia or municipality in the Dogu'a Tembien district of the Tigray Region of Ethiopia. Literal meaning of Ayninbirkekin in Tigrinya is "We will not bend". The tabia centre is in Halah village, located approximately 8 km to the east of the woreda town Hagere Selam. Main town is Ala'isa, situated on the ridge overseeing the Giba valley.
The soils of the Atsbi Wenberta woreda (district) in Tigray (Ethiopia) reflect its longstanding agricultural history, highly seasonal rainfall regime and relatively low temperatures. The northern part of the district is on the high uplifted Atsbi Horst, whereas the southern part is dominated by the Des’a forest on Antalo Limestone. In between there is the fluvial landscape of Hayqi Meshal. Particularities in the southern part of the district are soil catenas on intervening plains behind tufa dams and in a polje.
The soils of the Inderta woreda (district) in Tigray (Ethiopia) reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures, overall dominance of limestone and dolerite lithologies and steep slopes. Outstanding features in the soilscape are wide plains with Vertisols.
The soils of the Kola Tembien woreda (district) in Tigray (Ethiopia) reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively high temperatures, overall dominance of sandstone and metamorphic lithology and steep slopes.
Aster Afwork GebrekirstosFAASTWAS is an Ethiopian scientist and a professor of agroforestry at World Agroforestry Centre (ICRAF).
Masresha FeteneFAAS is an Ethiopian professor of Plant Ecophysiology at the Department of Plant Biology and Biodiversity Management, Addis Ababa University.