Farmland tree species diversity and spatial distribution pattern in semi-arid East Shewa, Ethiopia

Endale, Yemenzwork; Derero, Abayneh; Argaw, Mekuria; Muthuri, Catherine

doi:10.1080/14728028.2016.1266971

Cited by 69 publications

(62 citation statements)

References 16 publications

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“…The strict protection from grazing and human disturbances is likely the reason for the satisfactory regeneration. This result was congruent with a study conducted in the same area [45], which found a high juvenile ratio in the protected areas close to homesteads. The low ratio of individuals in high DBH classes (>30 cm) may be due to the nature of the individual species.…”

Section: Floristic Composition Richness and Diversitysupporting

confidence: 82%

Assessing the Impacts of Large-Scale Agro-Industrial Sugarcane Production on Biodiversity: A Case Study of Wonji Shoa Sugar Estate, Ethiopia

Degefa

Saito

2017

Agriculture

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Despite the intense debates on the land acquisition effects of large-scale Ethiopian sugarcane plantations and the consequences for food security, the impact on biodiversity has received less attention. We compared remnant patches in the sugarcane zone to the adjacent woodlands to determine the impacts of sugarcane on the diversity, composition, and structure of woody species. We recorded individual woody specimens with diameter at breast height (DBH) ≥ 2.5 cm from 56 quadrats of 200 m 2 at each site in a systematic, random, and gradient-oriented transect design. In addition, we employed a trait-based risk assessment framework to examine the threat posed by agro-industrial sugarcane production on mammals, birds, and rodents. A total of 56 woody species, 38 in the woodlands and 30 in the sugarcane zone, were identified. The proportion of non-native woody species was higher (63%) in the sugarcane zone than in the adjacent woodlands (1%). The rodents and mammals were more abundant in the woodlands than in the sugarcane zone. Although we did not investigate all of the bird and mammal species, our results identified six rodent species, five mammal species, and one bird species as susceptible to sugarcane agriculture activities. The results suggest that large-scale agro-industrial sugarcane production impacts species diversity, composition and abundance of species, and species' resource requirements.

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Section: Floristic Composition Richness and Diversitysupporting

confidence: 82%

Assessing the Impacts of Large-Scale Agro-Industrial Sugarcane Production on Biodiversity: A Case Study of Wonji Shoa Sugar Estate, Ethiopia

Degefa

Saito

2017

Agriculture

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“…The distribution of Acacia seyal in the resource potential areas in Eastern Amahara shows different across the sites studied. In scattered trees on crop lands, Yemenzwork et al, 2016 found that there were different tree species distributions across sites and low tree density and low in regeneration. Feyissa, (2006) also indicated frequently varying agro-climatic conditions with diverse cultural and farming practices remain characteristics of agriculture in Ethiopia.…”

Section: Discussionmentioning

confidence: 98%

Resource Base Assessment of <em>Acacia Seyal</em> in Eastern Amhara Region

Ayalew¹,

Wudu²,

Getachew³

et al. 2019

Preprint

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The study was conducted in north wollo, south wollo and orimiya zone, in Eastern Amhara with an aim to assess the resource potential of Acacia seyal in the selected sites. The data from the selected sites were collected using point center quarter method. A total of 90 quadrates from nine study areas with plot size 50m*50m, (22.5ha) were systematically located along each transect, 100 m apart, and was spatially captured with the aid of GPS. At every sampling point, four quadrants (90 degrees) were created, using the transect line and a line perpendicular to it. Species composition Acacia seyal structure and its regeneration status, at points along transects were taken to analyze diversity and target species structure of the sites. The highest and least density of Acacia seyal ha -1 were attained by Mehale mecharie (148) and Alene sefer (52). The highest shannon weiner diversity and species richness was observed in Alene sefer(Kemessie). Acacia seyal structure in all study sites showed an inverted J shape except lastie gerdao (Gubalafeto). Therefore, Acacia seyal deserves immediate conservation and appropriate management measures in order to get sustainable product and services from the species. Based on the results, awareness creation on the values and management of Acacia seyal, study on the management options of Acacia seyal for firewood, fuel wood, charcoal production and also investigation of gum production techniques of Acacia seyal for the sustainable use of the resource are recommended. IntroductionAcacia species are important in a forestation programs and for producing non-timber forest products in arid and semiarid zones (Amelework et al., 2010).A. seyal belongs to the genus Acacia Mill., which is one the largest genera within the family Mimosaceae.The genus Acacia includes about 1200 species widely distributed in the dry land all over the world (Bakri, 1989). Acacia seyal is one of the strongly gregarious sub sharain tree species with major role of fuel wood and fodder production. According to (Thirakul, 1984;Badi al et al.,1989) indicates that Acacia Seyal is medium size tree up to 17 meters high, but 9-10 m is regarded as full-sized over most of its range with diameter 25-30 cm.Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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“…Weatsebeha watershed of Tigray region that resulted in 1.12 and 0.41 of Shannon diversity and evenness respectively (Guyassa & Raj, 2013), a study in Oromia region at East Shewa zone (Endale et al, 2017) with a finding of 2.43 and 0.31 of Shannon diversity and evenness respectively, a study carried out in the rift valley at Beseku, Arsi Negelle that reported Shannon diversity of 2.22 and evenness of 0.64 (Tolera, 2006 (Tolera, 2006). Open Journal of Forestry ranging between the utility, drought resistance nature of the species, compatibility with crop elements and potential for improvement of soil fertility (Bannister & Nair, 2003;Roothaert & Franzel, 2001).…”

Section: Tree Species Diversity In Parkland Agroforestry Of Ethiopiamentioning

confidence: 99%

“…Parkland trees, contribute to livelihood strategies (Dawson et al, 2014) in different mechanisms like, production diversification (farmers can offset crop failures), forage feed for livestock (Atangana et al, 2014;Mekonnen et al, 2009) that enables the producer to include animals in their agricultural system thus creating additional income diversification and food for times when crop harvest is low, farm tools, fuelwood, construction materials, fruit and medicine (Guyassa & Raj, 2013;Gizachew et al, 2015;Endale et al, 2017;Raj, 2016). Faidherbia albida; the most researched agroforestry species in Ethiopia improves barley productivity (Ernstberger, 2016;Hadgu et al, 2009), improves maize productivity (Gizachew et al, 2015;Poschen, 1986), 56% yield increment of Sorghum under Faidherbia albidain Ethiopiaas compared to yields outside the tree canopy (Poschen, 1986;Bekele-Tesemma, 2007a) and 14% increment in yield of Sorghum grain under Cordia africana parkland trees as compared to farmlands without trees in Burkina Faso (Boffa, 2000).…”

Section: Roles Of Parkland Agroforestrymentioning

confidence: 99%

“…Trees in general, prevent soil erosion which is a very serious problem nowadays in many corners of the country, as their perennial root networks stabilize the soil and are able to recover nutrients through pumping from deeper soil layers (Atangana et al, 2014;Bekele-Tesemma, 2007a) that are not easily accessible by the cereal crops (it is a means of attaining sustainable agricultural production and managing land resources (Bekele-Tesemma, 2007a)), for conservation, shade and fencing (Guyassa & Raj, 2013;Gizachew et al, 2015). The research done by Asfaw and Agren (2007) stated that in southern Ethiopia Cordia africana has significantly more nutrients in the topsoil underneath its canopy, improves soil fertility, and soil and water conservation (Gizachew et al, 2015) and soil quality (Gelaw et al, 2015), improves soil and water conservation, soil fertility, and provide shade (Endale et al, 2017), improves some soil properties under their canopy as compared to the adjacent open lands (Gindaba et al, 2005;Yadessa et al, 2001). Furthermore, Sileshi (2016) reported that Faidherbia albida parklands modify soil moisture availability through increased infiltration, fallen leaves of Faidherbia albida is commonly used as a fertilizer in farming systems (Tekalign et al, 1991), soil moisture content is significantly higher under Faidherbia albida tree as compared to outside the canopy of the trees (Hadgu et al, 2009), fixes nitrogen, improves the moisture status of the soil through uplifting of the underground water to the upper soil surface (Bekele-Tesemma, 2007a).…”

Section: Roles Of Parkland Agroforestrymentioning

confidence: 99%

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Parkland Agroforestry of Ethiopia; Key to Production, Productivity, Biodiversity Conservation and Climate Change Mitigation: A Review

Bekele¹

2018

OJF

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Compiled information on parkland agroforestry tree species in relation to diversity, tree management options and the challenges of the system is important for production and productivity, and biodiversity conservation through availing the required information which in turn has an implication to the sustainability of the system and climate change mitigation. So, the aim of this review paper is to compile information on parkland agroforestry practices of Ethiopia, particularly: on tree species diversity, their roles, management options available and challenges of the practice. Parkland agroforestry which is a system practiced by many local populations comprises the large part of agricultural landscapes in Ethiopia and is very important in different aspects such as; for food security, microclimate amelioration, economic benefits, environmental protection, household energy, household utensils, cultural values, traditional medicines, and fodder. There are many indigenous multipurpose tree species scattered on farmlands in Ethiopia, and the common one includes:Millettia ferruginea, Cordia africana, Ficus vasta, Ficus sur, Croton macrostachyus and Faidherbia albida. However, nowadays these trees are facing challenges like: expansion of exotic trees in the expense of the native ones, expansion of cash crops through removal of the parkland trees from the farm area, climate change, land shortage and tenure system which require high emphasis for the production and productivity as well as sustainability of the system especially, in this era of climate change; hence this system is one of climate change mitigation options.

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Farmland tree species diversity and spatial distribution pattern in semi-arid East Shewa, Ethiopia

Cited by 69 publications

References 16 publications

Assessing the Impacts of Large-Scale Agro-Industrial Sugarcane Production on Biodiversity: A Case Study of Wonji Shoa Sugar Estate, Ethiopia

Assessing the Impacts of Large-Scale Agro-Industrial Sugarcane Production on Biodiversity: A Case Study of Wonji Shoa Sugar Estate, Ethiopia

Resource Base Assessment of <em>Acacia Seyal</em> in Eastern Amhara Region

Parkland Agroforestry of Ethiopia; Key to Production, Productivity, Biodiversity Conservation and Climate Change Mitigation: A Review

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