Developing a satellite-based combined land degradation index for monitoring environmental change: A case study in Tana-Beles watershed, Upper Blue Nile, Ethiopia

cg.contactA.Worqlul@cgiar.orgen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Center for Tropical Agriculture - CIATen_US
cg.contributor.crpResilient Agrifood Systems - RAFSen_US
cg.contributor.funderCGIAR Trust Funden_US
cg.contributor.initiativeLivestock and Climateen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.countryETen_US
cg.coverage.regionEastern Africaen_US
cg.creator.idAbeyou, Abeyou: 0000-0002-7990-8446en_US
cg.creator.idHaddad, Mira: 0000-0002-9450-1599en_US
cg.creator.idGovind, Ajit: 0000-0002-0656-0004en_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.rsase.2023.101050en_US
cg.isijournalISI Journalen_US
cg.issn2352-9385en_US
cg.journalRemote Sensing Applications: Society and Environmenten_US
cg.subject.actionAreaResilient Agrifood Systemsen_US
cg.subject.agrovocsoil salinityen_US
cg.subject.agrovoclandsaten_US
cg.subject.impactAreaEnvironmental health and biodiversityen_US
cg.subject.sdgSDG 15 - Life on landen_US
cg.volume32en_US
dc.contributorHaddad, Miraen_US
dc.contributorAlemayehu, Sintayehuen_US
dc.contributorGovind, Ajiten_US
dc.creatorAbeyou, Abeyouen_US
dc.date.accessioned2023-11-08T15:32:18Z
dc.date.available2023-11-08T15:32:18Z
dc.description.abstractLand degradation is one of the most pressing environmental challenges due to its effect on the people and ecosystem. Early detection of land degradation could help to avoid further deterioration and work on reversing the trend. This would require an integrated approach combining indicators such as vegetation condition, soil health (i.e., soil salinity), and soil exposure (i.e., albedo) to characterize land degradation comprehensively. Therefore, this study aims at developing a satellite image-based combined land degradation index to monitor the spatial extent of land degradation in the Upper Blue Nile Basin, Ethiopia. In addition, the study also evaluates the environmental change associated with land degradation across the Tana-Beles watershed. The combined land degradation index (CLDI) was developed by integrating multiple indicators, including normalized vegetation Index (NDVI), salinity index (SI), and albedo, for two periods spanning between 1990 and 2000 (1990s) and 2010 to 2020 (2010s). The individual indicators were combined with Principal Component Analysis (PCA) by assigning weights to the individual indicators. The analysis indicated that, in the 2010s, the vegetation condition deteriorated over 98.5% of the study area, while soil salinity and albedo increased by 82% and 97% in the 1990s, respectively. The combined land degradation index developed with the PCA indicated in the 2020s a fraction of the study area ∼2% is extremely degraded, while 18%, 43%, 27%, and 10% of the site is strongly, moderately, slightly, and not degraded, respectively. Monitoring land degradation is important for countries like Ethiopia, where most of the county are occupied by semi-arid and arid climate zones.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/f44bc23bd5f134936d4dab3628e241a4/v/19285cfd8be6b21b3486f530619a7113en_US
dc.identifier.citationAbeyou Abeyou, Mira Haddad, Sintayehu Alemayehu, Ajit Govind. (31/8/2023). Developing a satellite-based combined land degradation index for monitoring environmental change: A case study in Tana-Beles watershed, Upper Blue Nile, Ethiopia. Remote Sensing Applications: Society and Environment, 32.en_US
dc.identifier.statusOpen accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/68764
dc.languageenen_US
dc.publisherElsevieren_US
dc.rightsCC-BY-NC-4.0en_US
dc.sourceRemote Sensing Applications: Society and Environment;32,(2023)en_US
dc.subjectvegetation conditionen_US
dc.subjectalbedoen_US
dc.titleDeveloping a satellite-based combined land degradation index for monitoring environmental change: A case study in Tana-Beles watershed, Upper Blue Nile, Ethiopiaen_US
dc.typeJournal Articleen_US
dcterms.available2023-08-31en_US
dcterms.issued2023-08-31en_US
mel.impact-factor4.7en_US

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