Spatio-temporal trends of Prosopis juliflora plantation and its implications on livelihoods in Awash Fentale District, Afar region, Ethiopia
| dc.contributor.advisor | Asnake Mekuriaw (PhD) and Telesphore Brou(PhD) | |
| dc.contributor.author | Tesfaye Taye | |
| dc.date.accessioned | 2025-08-06T06:37:02Z | |
| dc.date.available | 2025-08-06T06:37:02Z | |
| dc.date.issued | 2024-12-01 | |
| dc.description.abstract | Prosopis juliflora plantations has been the dominant plant species in the eastern parts of Ethiopoia. significantly impact the livelihoods of local communities. This study examines the trends and impacts of Prosopis juliflora plantations in the Awash Fentale District of the Afar region, Ethiopia. The analysis uses Landsat imagery and Sentinel-2 data on the Google Earth Engine platform, covering a 30-year period from 1993 to 2023, with data examined at ten-year intervals: 1993, 2003, 2013, and 2023. The methodology includes land use/land cover (LULC) classification, Normalized Difference Vegetation Index (NDVI) analysis, regression analysis, Mann-Kendall trend analysis, and Normalized Difference Infrared Index (NDII) computation. A comparative assessment of algorithms between Landsat 8 and Sentinel-2 for 2023 reveals that Sentinel-2 achieved higher overall accuracy (97%) and Kappa (96) compared to Landsat 8 (overall accuracy: 90%, Kappa: 88%). Statistical validation indicates the significance of these results, with a p value of 0.0001, below the 0.05 threshold. The results of this study show a continuous increase in the area invaded by Prosopis juliflora over a 30-year period, from 1993 to 2023. Specifically, the coverage of this invasive species grew from 63 km² in 1993 to 87.3 km² in 2023, indicating significant expansion within the studied area.To assess household perceptions, a perception index was developed using a five-point Likert scale, identifying factors that outline these views. The results show about 93% of the respondents have negative perception whereas 7% of households view Prosopis juliflora positively. Given the invasive nature of Prosopis juliflora and its impact on land use and pastoral livelihoods, these findings are essential for informing policymakers and land managers to develop effective strategies for managing and mitigating its spread in the region. Keywords: Prosopis juliflora, spatio-temporal trends, Google Earth Engine, LULC classification, NDVI analysis, NDII computation, invasive species, pastoral livelihoods | |
| dc.identifier.uri | https://etd.aau.edu.et/handle/123456789/6076 | |
| dc.language.iso | en_US | |
| dc.publisher | Addis Ababa University | |
| dc.subject | Prosopis juliflora | |
| dc.subject | spatio-temporal trends | |
| dc.subject | Google Earth Engine | |
| dc.subject | LULC classification | |
| dc.subject | NDVI analysis | |
| dc.subject | NDII computation | |
| dc.subject | invasive species | |
| dc.subject | pastoral livelihoods. | |
| dc.title | Spatio-temporal trends of Prosopis juliflora plantation and its implications on livelihoods in Awash Fentale District, Afar region, Ethiopia | |
| dc.type | Thesis |