Effect of integrated soil bunds on key soil properties and soil carbon stock in semi-arid areas of northern Ethiopia

Tadesse, Birhane; Mesfin, Shimbahri; Tesfay, Girmay; Abay, Fetien

doi:10.1080/02571862.2016.1148788

Cited by 26 publications

(18 citation statements)

References 5 publications

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“…Total porosity was showed a signi cant difference between stone-faced soil bund stabilized with kidan grass and other conservation measures. Similarly, Tadesse et al (2016) stated that integrating bunds with forage species was a better option to improve soil properties than bunds alone. Soil pH, organic carbon, and cation exchange capacity…”

Section: Resultsmentioning

confidence: 99%

Impacts of soil and water conservation measures and slope position on selected soil attributes at a watershed scale

Retta

Addis

Feyisa

2021

Preprint

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Background: The Ethiopian highlands are affected by soil loss caused by soil erosion resulted in soil properties deterioration. To reverse this, different soil and water conservation (SWC) measures were spatially practiced; however, the effect of SWC and slope gradient on soil properties is not studied well in the area. Hence, this study was conducted to evaluate the effects of SWC and slope gradient on selected soil physicochemical properties at Dawnt watershed, North-western Ethiopia. The treatments were a combination of four different SWC measures with three slope gradients replicated at three sites. Disturbed and undisturbed soil samples were collected from 0-20cm soil depth and physicochemical properties were determined following standard laboratory procedures. Results: The lab results depict that sand, bulk density, moisture, particle density, porosity, pH, organic carbon (OC), cation exchange capacity (CEC), total nitrogen, and available phosphorus were significantly (P<0.05) affected by SWC measures and slope gradient. High OC (2.44%), CEC (45cmol (+) kg-1), and moisture (19.55%) were obtained from Stone-Faced Soil Bund stabilized with Grass (SFSBG) and high available phosphorus (7.83ppm) from Soil Bund (SB) while lower bulk density (1.13gm/cm3) from SFSBG. Additionally, higher clay (41.67%) and moisture (19.81%) and lower bulk density (1.14g/cm3) were obtained from the lower slope. Higher pH (6.75) and OC (2.89%) were recorded at lower slope under SFSBG and lower pH and OC (6.03 and 1.02%) at the upper slope with non-conserved. Soil chemical properties, except available potassium, were increased down the slope.Conclusion: The interactions of slope position and SWC measures affect soil texture; pH, organic carbon, and available phosphorus but do not affect soil bulk density, moisture content, particle density, total porosity, cation exchange capacity, total nitrogen, and available potassium. In generally, the soil properties were improved through integrating conservation practices with multipurpose grass species across the study watershed. Therefore, in the study watershed and other similar agro-ecologies, farmers should use integrated SWC measures to avert the rainfall-driven soil nutrient loss.

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Section: Resultsmentioning

confidence: 99%

Impacts of soil and water conservation measures and slope position on selected soil attributes at a watershed scale

Retta

Addis

Feyisa

2021

Preprint

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“…Moreover, soil and water conservation practices and planting nitrogen-fixing tree species contribute to increased SOM content. Tadesse et al [41] also reported the increased soil organic carbon content with the planting of forage tree species and conservation.…”

Section: Relationships Among the Soil Chemical And Physical Propertiesmentioning

confidence: 95%

Effects of Natural Rehabilitation of Degraded Land by Exclosure on Selected Soil Physicochemical Properties in Eastern Ethiopia

2021

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The use of exclosure for ecological restoration has become an increasingly vital approach to reversing degraded lands. Its effectiveness in restoring degraded lands could be varied with differences in climate, vegetation type and soil properties. Thus, the objective of this study was to determine the effect of exclosure on the selected physical and chemical properties of the soil. A six-year-old exclosure and adjacent open land with the same history of land-use types were selected. Soil samples were randomly collected from 0–20 and 20–40 cm depths of each land-use type and measured for texture, soil moisture content (SMC), bulk density (BD), soil organic carbon (SOC), available phosphorus (Av.P), cation exchange capacity (CEC), electrical conductivity (EC) and pH contents. The highest SMC, SOC and Av.P and the lowest BD values were measured from the exclosure. SMC, SOC and Av.P increased by 73, 51 and 55%, respectively, while BD decreased by 31% as compared to the open land. CEC, EC and pH were also influenced positively compared with the adjacent open land. The funding indicates exclosure had a positive effect on the restoration of soil nutrients, which are essential to promote vegetation growth and thereby minimize soil erosion.

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“…The model‐based nutrient losses through erosion in this study except N losses in Alaje were similar to a study conducted in the central highlands of Ethiopia by Adimassu, Mekonnen, Yirga, and Kessler (2014) who reported measured nutrient losses of 8.2 kg N ha −1 , 0.76 kg P ha −1 and 1.71 kg K ha −1 at the catchment level. This model‐based nutrient losses through erosion were also similar to several findings who reported measured nutrient losses of 12.8 kg N ha −1 , 0.1 kg P ha −1 and 1.7 kg N ha −1 at catchment level in northern Ethiopia (Gebremedhin, Gebresamual, Abadi, Teka, & Mesfin, 2017; Lema, Kebede, Mesfin, Fitiwy, & Abraha, 2016; Lema et al., 2019; Lemma et al., 2017; Mesfin, Taye, Desta, et al, 2018; Mesfin, Taye, & Hailemariam, 2018b; Phong, Stoorvogel, Mensvoort, & Van Udo, 2010; Tadesse, Mesfin, Tesfay, & Abay, 2016). The reason for higher N nutrient losses per unit area in the agricultural lands than at the degraded catchment level can be due to the fact that agricultural lands may have received relatively better inorganic and organic nutrient inputs.…”

Section: Discussionmentioning

confidence: 99%

Nutrient balances in smallholder farms in northern Ethiopia

Mesfin

Gebresamuel

Zenebe

et al. 2020

Soil Use and Management

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Depletion of soil nutrient is a major impediment for food production in sub-Saharan Africa, but little is known about nutrient dynamics at the farm level. Therefore, the objective of this study was to evaluate nutrient management on a range of contrasting farms by estimating balances of N, P and K. Representative farmers of three wealth classes (rich, medium and poor) were selected from two different agro-ecological regions (Alaje and Raya Azebo) in northern Ethiopia. The MonQI model based on data obtained from farm questionnaires was used for processing and analysis of partial nutrient balances (input from mineral and organic fertilizer minus output with crop and straw) and full balances (all input sources minus output with crop, erosion, leaching and gaseous losses).

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Effect of integrated soil bunds on key soil properties and soil carbon stock in semi-arid areas of northern Ethiopia

Cited by 26 publications

References 5 publications

Impacts of soil and water conservation measures and slope position on selected soil attributes at a watershed scale

Impacts of soil and water conservation measures and slope position on selected soil attributes at a watershed scale

Effects of Natural Rehabilitation of Degraded Land by Exclosure on Selected Soil Physicochemical Properties in Eastern Ethiopia

Nutrient balances in smallholder farms in northern Ethiopia

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