Afficher la notice abrégée

The influence of Acacia tortilis (Forssk.) Subsp raddiana (Savi) and livestock grazing on grass species composition, yield and soil nutrients in and environments of South Tunisia

hal.structure.identifierUniversité de Sfax
dc.contributor.authorABDALLAH, Fathia
hal.structure.identifierUniversité de Sfax
dc.contributor.authorNOUMI, Zouhaier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTOUZARD, Blaise
hal.structure.identifierUniversité de Gabès
dc.contributor.authorBELGACEM, Azaiez Ouled
hal.structure.identifierUniversité de Gabès
dc.contributor.authorNEFFATI, Mohamed
hal.structure.identifierUniversité de Sfax
dc.contributor.authorCHAIEB, Mohamed
dc.date.accessioned2022-10-12T12:42:54Z
dc.date.available2022-10-12T12:42:54Z
dc.date.issued2008
dc.identifier.issn0367-2530
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157123
dc.description.abstractEnThe objectives of the study, conducted during the 2003/2004 growing season in the National Park of Bou Hedma (South Tunisia), were to quantify the effects of the single-woody species Acacia tortilis subsp. raddiana on grass species composition, on total plant cover, on density of perennial species, on dry matter (DM) yield and on soil nutrients at lightly and heavily grazed sites. In each study site, two subhabitats were distinguished, i.e. under tree canopies and open grasslands. In the lightly grazed site, the nutrient status of soil (organic matter, total N, extractable P, K+, Ca2+, Na+, Mg2+) under Acacia raddiana canopy, was found to be significantly higher (p<0.05) than under the open grassland. In the same way, total plant cover (p<0.05), density of perennial species (p<0.01) and DM yield (p<0.01) were significantly higher under tree canopies in the lightly grazed site. Heavy grazing proved to exert a strong overriding effect over the positive influences of the woody plants. For most studied parameters, a non-significant difference was recorded between canopied and uncanopied subhabitats. Some palatable species were frequently found under trees. In the heavily grazed site, these species are being replaced by less desirable species. This emphasizes the importance of conservation stocking rates and proper pasture management.
dc.language.isoen
dc.publisherElsevier
dc.subjectGRASS COMPOSITION
dc.subjectSOIL ENRICHMENT
dc.subjectFACILITATION
dc.subject.enACACIA TORTILIS SUBSP. RADDIANA
dc.subject.enTREE CANOPIES
dc.subject.enOPEN AREAS
dc.subject.enYIELD
dc.title.enThe influence of Acacia tortilis (Forssk.) Subsp raddiana (Savi) and livestock grazing on grass species composition, yield and soil nutrients in and environments of South Tunisia
dc.typeArticle de revue
dc.identifier.doi10.1016/j.flora.2007.02.002
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalFlora
bordeaux.page116-125
bordeaux.volume203
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02666629
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02666629v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Flora&amp;rft.date=2008&amp;rft.volume=203&amp;rft.issue=2&amp;rft.spage=116-125&amp;rft.epage=116-125&amp;rft.eissn=0367-2530&amp;rft.issn=0367-2530&amp;rft.au=ABDALLAH,%20Fathia&amp;NOUMI,%20Zouhaier&amp;TOUZARD,%20Blaise&amp;BELGACEM,%20Azaiez%20Ouled&amp;NEFFATI,%20Mohamed&amp;rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée