Alemnesh Ayza
Research Subjects
Alemnesh Ayza has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Gezimu Gelu Otoro
Laboratory of Hydraulic and Environmental Engineering, Kitami Institute of Technology, Kitami, Japan
2 shared publications - Tuma Ayele Yada
Arba Minch Agricultural Research Center, Arba Minch, Ethiopia
2 shared publications - Chanako Dane
Natural Resources Management, Irrigation, and Salinity Program, Arba Minch Agricultural Research Center, Arba Minch, Ethiopia
1 shared publication - Katsuaki Komai
Division of Civil and Environmental Engineering, Kitami Institute of Technology, 165 Koen-cho, Kitami 090-8507, Hokkaido, Japan
1 shared publication
Latest Publications
- Open Access
- 14 August 2026
- Published by Springer Nature in Saudi Journal of Food Security and Environmental Sustainability
- Vol. 1 (1) , 9
The salinity challenge: macro-micro nutrients degradation, productivity loss, economic risks, and policy-technology directions in semi-arid regions
- 14 August 2026
- Published by Springer Nature in Saudi Journal of Food Security and Environmental Sustainability
- Vol. 1 (1) , 9
Open AccessThe salinity challenge: macro-micro nutrients degradation, productivity loss, economic risks, and policy-technology directions in semi-arid regions
- Open Access
- 10 January 2025
- Published by Springer Nature in Environmental Monitoring and Assessment
- Vol. 197 (2) , 1-20
Investigating the salinity distribution using field measurements in the semi-arid region of southern Ethiopia
This study investigated the distribution of salinity and sodicity in the irrigated areas of Abaya Chamo. Representative water and soil samples were collected from different soil depths (0–30 cm and 30–60 cm). Sodium absorption ratio (SAR), electrical conductivity (Ec), pH, exchange sodium, magnesium, calcium, and potassium cations, and exchange sodium percentage (ESP) of the sampled sites were analyzed for soil salinity classification and severity analysis. The spatial analysis revealed predominant strongly saline (72%) and sodic (71.1%) conditions in the surface layer (0–30 cm), intensifying very strongly saline (78.7%) and sodic (71.9%) conditions at 30–60 cm depth. Combined saline-sodic conditions dominated both layers, increasing from 91.2% at the surface to 97.1% in the deeper layer, indicating severe agricultural limitations. The results show that soil in the catchments of Lakes Abaya and Chamo suffer from different salinity and sodium content classes. Therefore, appropriate remedial measures based on soil salinity and sodium content should be developed to achieve better reclamation, agricultural production, and land sustainability.
- 10 January 2025
- Published by Springer Nature in Environmental Monitoring and Assessment
- Vol. 197 (2) , 1-20
Open AccessInvestigating the salinity distribution using field measurements in the semi-arid region of southern Ethiopia
This study investigated the distribution of salinity and sodicity in the irrigated areas of Abaya Chamo. Representative water and soil samples were collected from different soil depths (0–30 cm and 30–60 cm). Sodium absorption ratio (SAR), electrical conductivity (Ec), pH, exchange sodium, magnesium, calcium, and potassium cations, and exchange sodium percentage (ESP) of the sampled sites were analyzed for soil salinity classification and severity analysis. The spatial analysis revealed predominant strongly saline (72%) and sodic (71.1%) conditions in the surface layer (0–30 cm), intensifying very strongly saline (78.7%) and sodic (71.9%) conditions at 30–60 cm depth. Combined saline-sodic conditions dominated both layers, increasing from 91.2% at the surface to 97.1% in the deeper layer, indicating severe agricultural limitations. The results show that soil in the catchments of Lakes Abaya and Chamo suffer from different salinity and sodium content classes. Therefore, appropriate remedial measures based on soil salinity and sodium content should be developed to achieve better reclamation, agricultural production, and land sustainability.