Mapping crop water productivity in the Nile Basin through combined use of remote sensing and census data

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cg.coverage.countryEthiopiaen
cg.coverage.countryEgypten
cg.coverage.countrySudanen
cg.coverage.countryBurundien
cg.coverage.countryRwandaen
cg.coverage.countryTanzaniaen
cg.coverage.countryEritreaen
cg.coverage.countryKenyaen
cg.coverage.countryZaireen
cg.coverage.countryUgandaen
cg.coverage.iso3166-alpha2ETen
cg.coverage.iso3166-alpha2EGen
cg.coverage.iso3166-alpha2SDen
cg.coverage.iso3166-alpha2BIen
cg.coverage.iso3166-alpha2RWen
cg.coverage.iso3166-alpha2TZen
cg.coverage.iso3166-alpha2ERen
cg.coverage.iso3166-alpha2KEen
cg.coverage.iso3166-alpha2ZRen
cg.coverage.iso3166-alpha2UGen
cg.coverage.regionAfricaen
cg.coverage.regionEastern Africaen
cg.coverage.regionNorthern Africaen
cg.coverage.regionMiddle Africaen
cg.identifier.urlhttp://www.irncid.org/GetFileArticles.aspx?FilePrm=7048_68836.pdfen
cg.river.basinNILEen
dc.contributor.authorKarimi, Pooladen
dc.contributor.authorDavid, S.en
dc.contributor.authorBastiaanssen, Wim G.M.en
dc.date.accessioned2014-06-13T11:41:23Zen
dc.date.available2014-06-13T11:41:23Zen
dc.identifier.urihttps://hdl.handle.net/10568/38329
dc.titleMapping crop water productivity in the Nile Basin through combined use of remote sensing and census dataen
dcterms.abstractRemote sensed imagery in combination with secondary agricultural statistic was used to map crop water productivity (WP) in the Nile River Basin. Land productivity and crop tandardized gross value production (SGVP) were calculated at administrative level using the agricultural census data. Actual evapotranspiration (Eta) generated from remote sensing was used to assess crops consumptive water use. WP was then calculated by dividing SGVP by Eta in the cropped areas. Results show land productivity has a huge variation across the basin. SGVP per hectare in the basin varies from 20 $/ha to 1833 $/ha. Likewise SGVP, water productivity in the basin is highly variable. It ranges from 0.01 $/m3 to 0.2 $/m3. Observed patterns in the water productivity indicate that WP differences in the Nile basin are highly related to crop yield, which varies in different regions and also in irrigated and rainfed systems. Similarly, overall low WP is because of low yields, chiefly rainfed agriculture. This indicates that there is scope for enhancing WP in the Nile Basin through expanding irrigated agriculture and generally increasing yield.en
dcterms.accessRightsOpen Accessen
dcterms.bibliographicCitationKarimi, Poolad; Molden, David; Bastiaanssen, W. 2011. Mapping crop water productivity in the Nile Basin through combined use of remote sensing and census data. In ICID. 21st Congress on Irrigation and Drainage: Water Productivity towards Food Security, Tehran, Iran, 15-23 October 2011. New Delhi, India: ICID. pp.137-148. (ICID Transaction No. 30-A)en
dcterms.descriptionIn ICID. 21st Congress on Irrigation and Drainage: Water Productivity towards Food Security, Tehran, Iran, 15-23 October 2011. New Delhi, India: ICIDen
dcterms.descriptionICID Transaction No. 30-Aen
dcterms.extentp. 137-148en
dcterms.issued2011en
dcterms.languageenen
dcterms.subjectcropsen
dcterms.subjectwater productivityen
dcterms.subjectmappingen
dcterms.subjectriver basinsen
dcterms.subjectremote sensingen
dcterms.subjectdataen
dcterms.subjectland productivityen
dcterms.subjectland useen
dcterms.subjectland coveren
dcterms.subjectevapotranspirationen
dcterms.subjectfarming systemsen
dcterms.subjectirrigated farmingen
dcterms.subjectrainfed farmingen
dcterms.subjectpricingen
dcterms.subjecteconomic aspectsen
dcterms.typeConference Paperen

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