Assessment of Design and Constraints of Physical Soil and Water Conservation Structures in respect to the standard in the case of Gidabo sub-basin, Ethiopia

Hassen, Getahun; Bantider, Amare; Legesse, Abiyot; Malesu, Maimbo

doi:10.1080/23311932.2020.1855818

Cited by 11 publications

(7 citation statements)

References 28 publications

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“…The farmers said that the implementation of SWC work without the application of chemical fertilizers was meaningless. This result agrees with the study report by [31] in the Gidabo watershed of southeastern Ethiopia.…”

Section: F Constraints To Adopt and Adapt The Soil And Water Conservation Practicessupporting

confidence: 93%

The Effect of Soil and Water Conservation Structures on the Soil Biophysical and Chemical Properties in the Gidabo Sub-basin, Ethiopian Rift Valley

Hassen¹,

Bantider²,

Legesse³

et al. 2021

IJESD

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Soil erosion is one of the global challenges noticed as a cause for unsustainable socio-economic and environmental conditions. Over the last half-century, various soil and water conservation (SWC) practices were introduced in Ethiopia, but the conservation work could not be fully achieved in many areas. Therefore, this study aimed to explore the effect and constraints of physical SWC on selected soil biophysical and chemical properties of the Ethiopian rift valley. The primary and secondary data sources were used to answer the intended objectives. The statistical analysis of variance showed that the soil texture of the study area was affected by the type of conservation technologies than agroecology and slope characteristics. However, soil bulk density was not significantly affected at all. The study also showed that the soil biophysical and chemical properties were significantly affected by the variation of agroecology and SWC technologies. The overall result of the study depicted that about 40% of the conservation work failed to maintain soil fertility because the farmers have constraints to adopt and adapt the SWC work. The constraints include small land size, shortage of fuel wood, dependency on food aid, less productivity of the soil, youth migration, and long lasted effect of conservation works. These constraints were seen as causes for inferior agricultural product, food insecurity, famine, migration and frequent drought of the area. The study concluded that the SWC work of the area should focus on variation of agroecology, SWC technologies, and local constraints. Also, the policy of natural resource conservation should consider local constraints to implement the national SWC guideline.

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Section: F Constraints To Adopt and Adapt The Soil And Water Conservation Practicessupporting

confidence: 93%

The Effect of Soil and Water Conservation Structures on the Soil Biophysical and Chemical Properties in the Gidabo Sub-basin, Ethiopian Rift Valley

Hassen¹,

Bantider²,

Legesse³

et al. 2021

IJESD

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“…These areas are characterized by lower tree cover, unsustainable land management practices, accelerated carbon decomposition and erosion. In line with this, Degefa [80], Debelo et al [81] and Hassen et al [82] indicated that trend in agricultural productivity has declined over the last decades given that climate change, soil erosion, and poor soil and water conservation (SWC) practices were mentioned as the main drivers. This, in turn, resulted in increased demand for farm inputs (e.g., fertilizer, pesticides) and increased production costs.…”

Section: Land Degradation Pathwaysmentioning

confidence: 89%

Integrated Modeling of Land Degradation Dynamics and Insights on the Possible Future Management Alternatives in the Gidabo River Basin, Ethiopian Rift Valley

Girma,

Moges,

Fürst

2023

Land

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Land degradation is a pivotal environmental concern, bearing substantial impacts in the Gidabo river basin (GRB) in Ethiopia, prompting a critical need for effective mitigation strategies. In this study, we aimed to assess the dynamics of land degradation pathways in the context of change in climate and land use. The identification of potential erosion hotspots and the appraisal of management strategies was also carried out. The Soil and Water Assessment Tool (SWAT) and the Good Practice Guidance (GPG) framework was employed. The results revealed a compelling synergy between land use dynamics and climate changes, asserting joint and individual prevalence in influencing surface runoff and sediment yield. The past simulation revealed 4–5.9% and 24–43% increments in mean annual runoff and sediment yield, respectively. While the near (2021–2040) and mid (2041–2060) future scenarios displayed varying trends under RCP4.5 and RCP8.5. Furthermore, sub-basins prone to soil erosion risk were identified, thereby enabling targeted conservation efforts. The assessment of trends in land degradation neutrality (LDN) unveiled the expansion of land degradation trajectories (by 26%) from 1985–2003 to 2003–2021. This might be attributed to the dynamic interplay between climate and land use land cover (LULC) change, with croplands and bare land emerging as high-risk degraded areas. Addressing these concerns, soil/stone bund, terracing, contour farming, and reforestation practice can significantly reduce the annual sediment yield in the future. The integration of soil erosion indicators with LDN sub-indicators can provide a more comprehensive approach that can lead to more effective land management and restoration strategies to achieve the LDN goal. The findings of this study could contribute crucial insights and substantial implications for policymakers, land managers, and conservationists. Moreover, future efforts should be directed to expand investigations into diverse land degradation pathways and mitigation measures.

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“…The Gidabo Watershed is part of Rift Valley Basin, and also called Ethiopian Rift runs through Ethiopia in the southwest direction from the Afar Triple Junction (Elias et al, 2019). This area is characterized by wide topography and climatic variation ranging from humid in the highland to semi-arid (Hassen et al, 2021). It is situated between 6 0 9' 4'' to 6 0 56' 4''N latitude and 37 0 55' to 38 0 35''E longitude, covering an area that is approximately 3549 km 2 (Figure 1).…”

Section: Description Of Research Sitesmentioning

confidence: 99%

Quantifying and linking Sustainable Land-water-energy-food nexus: A perspective of sustainable livelihoods in Gidabo Watershed, East African Rift Valley

hatiya¹,

Wei²,

Ketema³

et al. 2021

Preprint

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BackgroundThe sustainable management of Land - Water - Energy - Food (LWEF) nexus requires an environmental characterization that allows the comparison of complex interlinkages between nexus resources and livelihoods. This complexity makes this characterization difficult coupled with limited study in quantifying sustainability of LWEF nexus and its linkage with livelihood. Therefore, the present study aimed to investigate the link between sustainable LWEF nexus and livelihoods. We used analytical hierarchy process and pairwise comparison matrix in combination with weighting model.ResultThe result of composite LWEF nexus index was 0.083 representing, low sustainability. This could be linked with nexus resources consumption, use, and management. From the analysis of the weight of land, water, energy and food nexus resources, the highest weight was observed for food. The focus of on food production only shows no clear synergy on provisioning, supporting or regulating nexus resources to address livelihoods. The result further showed that LWEF nexus resources have strong correlation with livelihoods. This was evidenced by social (r ≥ 0.8, P < 0.01), natural (r ≥ 0.3, P < 0.05) and physical (r ≥ 0.6, P < 0.01) livelihood indicators showed strong positive correlation with LWEF nexus resources.ConclusionBased on the finding of the study, it was observed that managing nexus resources not only provide a significant contribution to achieve sustainable LWEF nexus, but also be effective for enhancing livelihood through food security. This could be attained by strong evidence based policy to ensure sustainable use of nexus resources. The results provided by this study would serve as the foundation for future study, policy formulation and implementation.

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Assessment of Design and Constraints of Physical Soil and Water Conservation Structures in respect to the standard in the case of Gidabo sub-basin, Ethiopia

Cited by 11 publications

References 28 publications

The Effect of Soil and Water Conservation Structures on the Soil Biophysical and Chemical Properties in the Gidabo Sub-basin, Ethiopian Rift Valley

The Effect of Soil and Water Conservation Structures on the Soil Biophysical and Chemical Properties in the Gidabo Sub-basin, Ethiopian Rift Valley

Integrated Modeling of Land Degradation Dynamics and Insights on the Possible Future Management Alternatives in the Gidabo River Basin, Ethiopian Rift Valley

Quantifying and linking Sustainable Land-water-energy-food nexus: A perspective of sustainable livelihoods in Gidabo Watershed, East African Rift Valley

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