Dispersed trees on smallholder farms enhance soil fertility in semi-arid Ethiopia

Gebrewahid, Yikunoamlak; Teka, Kassa; Gebre-Egziabhier, Tewolde-Berhan; Tewolde-Berhan, Sara; Birhane, Emiru; Eyasu, Gebru; Meresa, Esayas

doi:10.1186/s13717-019-0190-8

Cited by 20 publications

(11 citation statements)

References 30 publications

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“…(2021) Acacia nilotica, Acacia seyal , Balanites aegyptiaca , Capparis tomentosa , Carissa edulis, Citrus medica , Cordia africana , Faidherbia albida ( Acacia albida ), Ficus sycomorus , Grewia bicolour, Oxytenanthera abyssinica, Dalbergia melanoxylon and Moringa stenopetala Northern parts of Ethiopia Etefa et al. (2014) ; Gebrewahid et al. (2019) ; Gebru et al.…”

Section: Literature Reviewmentioning

confidence: 99%

“…A household normally maintains indigenous multipurpose trees in farmland for multiple useful and valuable purposes to optimize the capture and use of environmental resources ( Mesele, 2007 ). This depends on the tangible uses that they render to the household ( Negese and Motuma, 2021 ), such as: food, fodder, firewood, soil fertility, windbreak Abreha and Gebrekidan (2014) ; Gebrewahid et al. (2019) ; and a variety of different products ( Tesfaye et al., 2010 ; Negash et al., 2012 ; Girmay et al., 2015 ).…”

Section: Literature Reviewmentioning

confidence: 99%

“…This depends on the tangible uses that they render to the household (Negese and Motuma, 2021), such as: food, fodder, firewood, soil fertility, windbreak (Abreha and Gebrekidan, 2014;Gebrewahid et al, 2019; and a variety of different products (Tesfaye et al, 2010;Negash et al, 2012;Girmay et al, 2015).Other reasons for retaining woody species are associated with bee keeping and other forms of income generation (Mulugeta et al, 2011;Diriba et al, 2011;Getahun et al, 2014;Negese and Motuma, 2021). According to Abebe et al, ( 2008) indigenous multipurpose trees provide many benefits including food, fuel wood, construction wood, timber, furniture, resins, domestic uses of tools and honey from bees.…”

Section: Productive Roles Of Indigenous Multipurpose Agroforestry Treesmentioning

confidence: 99%

“…Examples of the contribution of scattered trees of Cordia africana to improve soil fertility in traditional agroforestry systems has been documented in Ethiopia (Teketay and Tegineh, 2012) with species like Cordia africana, Millettia ferruginea and Croton macrostachyus (Hailu et al, 2000;Gindaba et al, 2005;Desalegn and Zebene, 2016;Latamo and Wondmagegn, 2020). In North Central and southern Ethiopia Cordia africana and Millettia ferruginea have been considered the best for improving soil fertility (Hailu et al, 2000;Kiros et al, 2015) although Oxytenanthera abyssinica and Dalbergia melanoxylon trees are also highly regarded on smallholder farms (Gebrewahid et al, 2019).…”

Section: Conserving and Improving Soil Fertilitymentioning

confidence: 99%

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A review on the indigenous multipurpose agroforestry tree species in Ethiopia: management, their productive and service roles and constraints

Lelamo

2021

Heliyon

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Tree planting has a long history in Ethiopia and managing indigenous multipurpose trees is widely adopted by farmers, as a dominant feature of agricultural landscapes. Farmers manage different indigenous multipurpose tree species within agroforestry practices. But variability in agroecological conditions causes inconsistency on tree species selection, their intended benefits and ecological services. Management practices and current constraints on them were also the major issues on indigenous multipurpose agroforestry tree species in Ethiopia. Therefore, this article was initiated to review on indigenous multipurpose agroforestry tree species in Ethiopia, management practices applied to them, their productive and service roles and constraints. It found that Cordia africana, Millettia ferruginea, Erythrina brucei and Olea capensis are the major indigenous multipurpose tree species used in agroforestry systems in southern Ethiopia. Croton macrostachyus, Vernonia amygdalina, Faidherbia albida, Acacia nilotica, Acacia seyal and Grewia bicolour are found in the northern part of Ethiopia. Albizia gummifera, Cordia africana , Croton macrostachyus , Ficus vasta and Vernonia amygdalina are also found in the central highlands of Ethiopia. They are established through natural regeneration and farmers apply pruning, pollarding and coppicing tree management practices to harmonize their survival with integrated crops. Fruit, fodder, wood, timber and cash generation are the major productive roles of these tree species. In addition to these, they also have agroecological services through improving soil fertility, controlling erosion, mitigating climate change and conserving biological diversity. Despite their considerable uses and services; inadequate research and extension; shortage of knowledge; the expansion of cash crops and the small size of land holdings constrain the sustainability of these tree species. The government could encourage the wider use of agroforestry practices by policies to expand research and extension services. In addition to this, policy makers and agricultural development interventions should be encouraged to make more informed decisions regarding further research on indigenous multipurpose tree species in Ethiopia.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Productive Roles Of Indigenous Multipurpose Agroforestry Treesmentioning

confidence: 99%

Section: Conserving and Improving Soil Fertilitymentioning

confidence: 99%

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A review on the indigenous multipurpose agroforestry tree species in Ethiopia: management, their productive and service roles and constraints

Lelamo

2021

Heliyon

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“…Bamboo is important for socio-economic growth potential (Baghel et al 1998, Perez et al 1999) and environmental protection (Bystriakova et al 2004). It can be also used as an agroforestry species, for house building, for animal feed, for human consumption (Christanty et al 1997), for soil fertility maintenance (Gebrewahid et al 2019), as a source of cash revenue, and as a medicine for the treatment of many disease types (Yuming et al 2004). The forest of bamboo is also a source of wood for furnishings, pulp, particleboard, and bioenergy (Embaye 2000).…”

Section: Introductionmentioning

confidence: 99%

Current and future predicting potential areas of Oxytenanthera abyssinica (A. Richard) using MaxEnt model under climate change in Northern Ethiopia

et al. 2020

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Introduction: Climate change will either improve, reduce, or shift its appropriate climatic habitat of a particular species, which could result in shifts from its geographical range. Predicting the potential distribution through MaxEnt modeling has been developed as an appropriate tool for assessing habitat distribution and resource conservation to protect bamboo species. Methods: Our objective is to model the current and future distribution of Oxytenanthera abyssinica (A. Richard) based on three representative concentration pathways (RCP) (RCP2.6, RCP4.5, and RCP8.5) for 2050s and 2070s using a maximum entropy model (MaxEnt) in Northern Ethiopia. For modeling procedure, 77 occurrence records and 11 variables were retained to simulate the current and future distributions of Oxytenanthera abyssinica in Northern Ethiopia. To evaluate the performance of the model, the area under the receiver operating characteristic (ROC) curve (AUC) was used. Results: All of the AUCs (area under curves) were greater than 0.900, thereby placing these models in the "excellent" category. The jackknife test also showed that precipitation of the coldest quarter (Bio19) and precipitation of the warmest quarter (Bio18) contributed 66.8% and 54.7% to the model. From the area of current distribution, 1367.51 km 2 (2.52%), 7226.28 km 2 (13.29%), and 5377.26 km 2 (9.89%) of the study area were recognized as high, good, and moderate potential habitats of Oxytenanthera abyssinica in Northern Ethiopia, and the high potential area was mainly concentrated in Tanqua Abergele (0.70%), Kola Temben (0.65%), Tselemti (0.60%), and Tsegede (0.31%). Kafta Humera was also the largest good potential area, which accounts for 2.75%. Compared to the current distribution, the total area of the high potential regions and good potential regions for Oxytenanthera abyssinica under the three RCPs (RCP2.6, RCP4.5, and RCP8.5) would increase in the 2050s and 2070s. However, the total area of the least potential regions under the three RCPs (RCP2.6, RCP4.5, and RCP8.5) in 2050s and 2070s would decrease. Conclusion: This study can provide vital information for the protection, management, and sustainable use of Oxytenanthera abyssinica, the resource to address the global climate challenges.

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Assessment of homegarden agroforestry for sustainable land management intervention in a degraded landscape in South Africa

2022

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Agroforestry-based sustainable land management (SLM) interventions provide opportunities for tackling land degradation and its associated socio-economic issues. Agroforestry is not a guaranteed SLM fix as every agroforestry practice is not automatically relevant to each context. It is critical to identify key considerations for ensuring a good fit between agroforestry and the receiving environment. This study identifies and analyses key factors for assessing the context-specific suitability of an agroforestry practice for SLM using a case-study of homegarden agroforestry in a degraded catchment. An analysis of biophysical and socio-economic characteristics of the catchment covering land degradation, SLM aspirations of residents, agriculture and agroforestry activities was conducted through literature review, field observations, GIS and remote sensing, stakeholder engagement and a questionnaire survey.Considerations in agroforestry practice assessment for SLM include agricultural and SLM objectives, which at our study site were increased crop production and arresting soil erosion. Availability of requisite resources, namely land, water and fencing; stakeholder interest in the tree and/or crop planting, species of interest and suitability of the species for the biophysical conditions should also be assessed. We propose a framework for systematically working through the relevant factors and assessing the suitability of an agroforestry practice for SLM intervention in a specific context.Based on the framework, homegarden agroforestry is an appropriate SLM intervention as it could meet stakeholders' SLM and agricultural objectives. Identification and systematic assessment of relevant factors are critical for ensuring the acceptability of agroforestry practice in a locality and the sustainability of associated SLM interventions.

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Dispersed trees on smallholder farms enhance soil fertility in semi-arid Ethiopia

Cited by 20 publications

References 30 publications

A review on the indigenous multipurpose agroforestry tree species in Ethiopia: management, their productive and service roles and constraints

A review on the indigenous multipurpose agroforestry tree species in Ethiopia: management, their productive and service roles and constraints

Current and future predicting potential areas of Oxytenanthera abyssinica (A. Richard) using MaxEnt model under climate change in Northern Ethiopia

Assessment of homegarden agroforestry for sustainable land management intervention in a degraded landscape in South Africa

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