Land cover dynamics in Savanna Ecosystem of Borena Ethiopia

Detalhes bibliográficos
Autor(a) principal: Beza, Teshome Abate
Data de Publicação: 2011
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/8283
Resumo: Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
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spelling Land cover dynamics in Savanna Ecosystem of Borena EthiopiaLand use changeLandscape structureSpatial metricsVegetation coverBorena pastoralistEthiopiaDissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.A study was conducted to examine land use and land cover change dynamic and spatial pattern of landscape structure in arid and semi-arid rangeland of Borena, Ethiopia. Three multi-temporal satellite (TM, and ETM+) images of 1987, 1995 and 2003 were used. Supervised maximum likelihood classification at pixel level and post-classification comparison of images was used. The landscape structures were calculated using Fragstats3.3 soft ware. Over the past 16 years, the arid and semi-arid savanna ecosystem of the Borena experienced land use and land cover change. Result indicated that about 39.04% of the total landscape remains unchanged and about 51.8% of total landscape was covered by bush land and woodland together. During 1987 to 2003 bush land, cultivation and urbanization had increased by 17%, 72.49% and 79.75% whereas woodland (11.68%) grassland (7.73%) and shrubby grassland (86.14%) were reduced. Spatial metrics analysis showed that during 1987 to 2003 the Borena landscape went through important change. The resulting landscape has become more fragmented and indicated by the proliferation of large number of patch, increasing of patch density, decreasing of largest patch index; more diversity and heterogeneity with tend to more unevenly distribution of patch and irregular shape patch within landscape. In overall, the present tendency of bush and woodland cover in the landscape may lead to more bush encroachment and grassland shrinkage if no proper measurement has taken. The continued land use cover change, coupled with a drier and climatic variability and considering human induced factor in the area, it is likely that the landscape change tendency will be continued which greatly affects people’s livelihood and put the pastoral production system under increasing threat.Pebesma, EdzerCabral, Pedro da Costa BritoCarmona, Pedro LatorreRUNBeza, Teshome Abate2012-12-03T16:55:15Z2011-02-072011-02-07T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/8283enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T03:40:50Zoai:run.unl.pt:10362/8283Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:18:06.642801Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
title Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
spellingShingle Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
Beza, Teshome Abate
Land use change
Landscape structure
Spatial metrics
Vegetation cover
Borena pastoralist
Ethiopia
title_short Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
title_full Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
title_fullStr Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
title_full_unstemmed Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
title_sort Land cover dynamics in Savanna Ecosystem of Borena Ethiopia
author Beza, Teshome Abate
author_facet Beza, Teshome Abate
author_role author
dc.contributor.none.fl_str_mv Pebesma, Edzer
Cabral, Pedro da Costa Brito
Carmona, Pedro Latorre
RUN
dc.contributor.author.fl_str_mv Beza, Teshome Abate
dc.subject.por.fl_str_mv Land use change
Landscape structure
Spatial metrics
Vegetation cover
Borena pastoralist
Ethiopia
topic Land use change
Landscape structure
Spatial metrics
Vegetation cover
Borena pastoralist
Ethiopia
description Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
publishDate 2011
dc.date.none.fl_str_mv 2011-02-07
2011-02-07T00:00:00Z
2012-12-03T16:55:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/8283
url http://hdl.handle.net/10362/8283
dc.language.iso.fl_str_mv eng
language eng
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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