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Mapping and monitoring agricultural land use in West Africa

dc.contributor.authorAlabi, T.
dc.contributor.authorXiao, X.
dc.contributor.authorSonder, K.
dc.contributor.authorBiradar, Chandrashekhar M.
dc.contributor.authorBirte, J.
dc.contributor.authorMbaye, Y.
dc.date.accessioned2019-12-04T11:20:55Z
dc.date.available2019-12-04T11:20:55Z
dc.date.issued2008
dc.identifier.citationAlabi, T., Xiao, X., Sonder, K., Biradar, C., Birte, J. & Mbaye, Y.(2008). Mapping and monitoring agricultural land use in West Africa, Application of Earth Observation and Geoinformation for Governance in 7th International Conference of the African Association of Remote Sensing of the Environment (AARSE)-2008, Accra, October 27-31. Ghana.
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3583
dc.description.abstractWest Africa has experienced increases in cultivated lands over the last 50 years in order to meet increasing demand from rapidly growing populations. Most countries in the region still depend on agriculture as an important part of the economy. In most countries however agricultural productivity is low leading to food insecurity and poor performance of the whole sector. In the Maputo declaration of 2004 the African governments committed to spending at least 10% of the national budget resources on a process of revitalizing the agricultural sector. For proper planning and investment strategies as well as policies to direct these for different crops, cropping systems and agricultural markets recent landuselandcover maps are necessary. Currently the most recent landcover set available is GLC2000 with 1 km resolution. The present work is therefore exploring the use of free available current images at higher resolutions to provide recent landuse maps for the ECOWAS countries of West Africa. 8-day composites of 500m resolution Moderate Resolution Imaging Spectroradiometer (MODIS) imagery of the year 2006 were used to produce a land cover map of West Africa. The percentage of cropland in each land cover classes were estimated with the combination of high resolution images (LANDSAT ETM 7), and very high resolution images (Quickbird and IKONOS acquired between 2000 and 2007 for several sites in West Africa as well as high resolution images digitized from Google earth). The preliminary results show different proportions of croplands in the different landcover classes. For instance, closed deciduous woodland of the coastal region of West Africa has between 10-15% cultivated land while 20-35% of croplands were found in the savanna shrubland. The approach demonstrates a simple and cost effective way of mapping croplands using MODIS data.
dc.language.isoen
dc.subjectLanduse
dc.subjectLandcover
dc.subjectCropland
dc.subjectModis
dc.subjectGoogle Earth
dc.subjectIkonos
dc.subjectQuickbird
dc.subjectLandsat Etm7
dc.titleMapping and monitoring agricultural land use in West Africa
dc.typeConference Paper
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of New Hampshire
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.countryKenya
cg.coverage.countryNiger
cg.coverage.countryNigeria
cg.coverage.countryBenin
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectLand Use
cg.iitasubjectClimate Change
cg.iitasubjectFood Security
cg.iitasubjectSoil Surveys And Mapping
cg.accessibilitystatusLimited Access
local.dspaceid95555


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