Soil erosion assessment of Lake Alemaya catchment, Ethiopia
Identifieur interne : 000C05 ( Main/Exploration ); précédent : 000C04; suivant : 000C06Soil erosion assessment of Lake Alemaya catchment, Ethiopia
Auteurs : S. Muleta [Éthiopie] ; F. Yohannes [Éthiopie] ; S. M. Rashid [Éthiopie]Source :
- Land Degradation & Development [ 1085-3278 ] ; 2006-05.
Descripteurs français
- Wicri :
- geographic : Éthiopie.
English descriptors
Abstract
Land degradation due to soil erosion is the major problem facing Ethiopia today. In the Lake Alemaya catchment soil erosion is caused by the intense rainfall, steep topography, and poor vegetation cover coupled with cultivation of steep lands, and inadequate conservation practices. Sediment from the catchment has affected the storage capacity of Lake Alemaya. This study has integrated the Agricultural Non‐point Source Pollution Model (AGNPS) and the technique of the Gographic Information System (GIS) to quantify soil erosion in the Lake Alemaya catchment. After application of the AGNPS, it appears that 66 per cent of the catchment has a soil erosion rate of 10 to more than 80 t ha−1 y−1. The annual soil loss is estimated at 31 t ha−1, which is more than the permissible value of 1–16 t ha−1 for different agro‐ecological zones of Ethiopia. The sediment yield of the catchment is about 10 148 ton with a delivery ratio of 6·82 per cent. Therefore, an effective management plan is needed for the conservation and rehabilitation of the catchment and to maintain the storage capacity of Lake Alemaya. Copyright © 2006 John Wiley & Sons, Ltd.
Url:
DOI: 10.1002/ldr.713
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000295
- to stream Istex, to step Curation: 000287
- to stream Istex, to step Checkpoint: 000589
- to stream Main, to step Merge: 000C10
- to stream Main, to step Curation: 000C05
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Soil erosion assessment of Lake Alemaya catchment, Ethiopia</title><author><name sortKey="Muleta, S" sort="Muleta, S" uniqKey="Muleta S" first="S." last="Muleta">S. Muleta</name></author><author><name sortKey="Yohannes, F" sort="Yohannes, F" uniqKey="Yohannes F" first="F." last="Yohannes">F. Yohannes</name></author><author><name sortKey="Rashid, S M" sort="Rashid, S M" uniqKey="Rashid S" first="S. M." last="Rashid">S. M. Rashid</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:307EADBE7846C09C9E5913FFA1E44AA803773942</idno><date when="2006" year="2006">2006</date><idno type="doi">10.1002/ldr.713</idno><idno type="url">https://api.istex.fr/document/307EADBE7846C09C9E5913FFA1E44AA803773942/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000295</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000295</idno><idno type="wicri:Area/Istex/Curation">000287</idno><idno type="wicri:Area/Istex/Checkpoint">000589</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000589</idno><idno type="wicri:doubleKey">1085-3278:2006:Muleta S:soil:erosion:assessment</idno><idno type="wicri:Area/Main/Merge">000C10</idno><idno type="wicri:Area/Main/Curation">000C05</idno><idno type="wicri:Area/Main/Exploration">000C05</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Soil erosion assessment of Lake Alemaya catchment, Ethiopia</title><author><name sortKey="Muleta, S" sort="Muleta, S" uniqKey="Muleta S" first="S." last="Muleta">S. Muleta</name><affiliation wicri:level="1"><country xml:lang="fr">Éthiopie</country><wicri:regionArea>Alemaya University, PO Box 138, Dire Dawa</wicri:regionArea><wicri:noRegion>Dire Dawa</wicri:noRegion></affiliation></author><author><name sortKey="Yohannes, F" sort="Yohannes, F" uniqKey="Yohannes F" first="F." last="Yohannes">F. Yohannes</name><affiliation wicri:level="1"><country xml:lang="fr">Éthiopie</country><wicri:regionArea>Alemaya University, PO Box 138, Dire Dawa</wicri:regionArea><wicri:noRegion>Dire Dawa</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Éthiopie</country><wicri:regionArea>Alemaya University, PO Box 138, Dire Dawa</wicri:regionArea><wicri:noRegion>Dire Dawa</wicri:noRegion></affiliation></author><author><name sortKey="Rashid, S M" sort="Rashid, S M" uniqKey="Rashid S" first="S. M." last="Rashid">S. M. Rashid</name><affiliation wicri:level="1"><country xml:lang="fr">Éthiopie</country><wicri:regionArea>Alemaya University, PO Box 138, Dire Dawa</wicri:regionArea><wicri:noRegion>Dire Dawa</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Land Degradation & Development</title><title level="j" type="abbrev">Land Degrad. Dev.</title><idno type="ISSN">1085-3278</idno><idno type="eISSN">1099-145X</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2006-05">2006-05</date><biblScope unit="volume">17</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="333">333</biblScope><biblScope unit="page" to="341">341</biblScope></imprint><idno type="ISSN">1085-3278</idno></series><idno type="istex">307EADBE7846C09C9E5913FFA1E44AA803773942</idno><idno type="DOI">10.1002/ldr.713</idno><idno type="ArticleID">LDR713</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1085-3278</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>AGNPS model</term><term>Ethiopia</term><term>Lake Alemaya catchment</term><term>sediment yield</term><term>soil erosion</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Éthiopie</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Land degradation due to soil erosion is the major problem facing Ethiopia today. In the Lake Alemaya catchment soil erosion is caused by the intense rainfall, steep topography, and poor vegetation cover coupled with cultivation of steep lands, and inadequate conservation practices. Sediment from the catchment has affected the storage capacity of Lake Alemaya. This study has integrated the Agricultural Non‐point Source Pollution Model (AGNPS) and the technique of the Gographic Information System (GIS) to quantify soil erosion in the Lake Alemaya catchment. After application of the AGNPS, it appears that 66 per cent of the catchment has a soil erosion rate of 10 to more than 80 t ha−1 y−1. The annual soil loss is estimated at 31 t ha−1, which is more than the permissible value of 1–16 t ha−1 for different agro‐ecological zones of Ethiopia. The sediment yield of the catchment is about 10 148 ton with a delivery ratio of 6·82 per cent. Therefore, an effective management plan is needed for the conservation and rehabilitation of the catchment and to maintain the storage capacity of Lake Alemaya. Copyright © 2006 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Éthiopie</li></country></list><tree><country name="Éthiopie"><noRegion><name sortKey="Muleta, S" sort="Muleta, S" uniqKey="Muleta S" first="S." last="Muleta">S. Muleta</name></noRegion><name sortKey="Rashid, S M" sort="Rashid, S M" uniqKey="Rashid S" first="S. M." last="Rashid">S. M. Rashid</name><name sortKey="Yohannes, F" sort="Yohannes, F" uniqKey="Yohannes F" first="F." last="Yohannes">F. Yohannes</name><name sortKey="Yohannes, F" sort="Yohannes, F" uniqKey="Yohannes F" first="F." last="Yohannes">F. Yohannes</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Agronomie/explor/SisAgriV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000C05 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000C05 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Agronomie
|area= SisAgriV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:307EADBE7846C09C9E5913FFA1E44AA803773942
|texte= Soil erosion assessment of Lake Alemaya catchment, Ethiopia
}}
| This area was generated with Dilib version V0.6.28. |  |