Using of Landsat Images for Land Use Changes Detection in the Ecosystem: A Case Study of the Senegal River Delta

Using of Landsat Images for Land Use Changes Detection in the Ecosystem: A Case Study of the Senegal River Delta



M. A. Toure, M. L. Ndiaye, V. B. Traore, G. Faye, B. Cisse, A. Ndiaye, C. T.Wade



Land use changes study is an essential step for the monitoring and
assessment of ecosystems. In Senegal River delta, ecosystem has
experienced significant changes from 1970 to nowadays. Several natural
and anthropic factors are at the origin of these modifications. The aim
of this paper is to reconstruct the history of land use in the Senegal
River delta and detect these changes. For this, Landsat images acquired
in 1972 (MSS), 1984 and 1988 (TM), 1999 and 2006 (ETM) and 2014 (OLI)
are used to make the diachronic study. We have first conducted a
pretreatment of the image (relating to the geometrical and radiometric
correction and the equalization of the histograms), calculated of
pseudo-ACP bands and NDVI, classified and validated the images and
finally detected changes by individual classification method. The
results obtained, broadly show significant changes in terms of areas
gain for the land plants (231%), growing areas (95%) and aquatic
vegetation (75%). This dynamic is at the expense of saline lands, dune
surfaces and the water areas. Interesting perspectives for authorities
and decision makers in precise management of the ecosystem in the
Senegal River delta are offered as well. 



10.22161/ijeab/1.2.15



http://ijeab.com/upload_document/issue_files/18%20IJEAB-AUG-2016-2-Using%20of%20Landsat%20Images%20for%20Land%20Use%20Changes%20Detection%20in%20the%20Ecosystem_%20A%20Case%20Study%20of%20the%20Senegal%20River%20Delta.pdf



ijeab.com/submit-paper/

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