The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands

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dc.contributor.authorHiernaux, P.en
dc.contributor.authorTurner, M. D.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialMalien
dc.coverage.temporal1977 - 1989en
dc.date.accessioned2016-04-19T18:55:16Zen
dc.date.available2016-04-19T18:55:16Zen
dc.date.issued1996en
dc.descriptionMetadata only recorden
dc.description.abstractGrowth and nutrient-uptake responses of annual rangeland to defoliation were studied at 13 sandy range sites located across the Sahelian zone of Mali between 1977 and 1989. 34 cutting experiments (site-years) were conducted using identical treatment designs with respect to the timing and frequency of cutting. The effect of highly variable growing conditions (rainfall and nutrient availability) on the response to cutting was analysed through a series of regression analyses. The growth response of vegetation to cutting was more related to variables associated with rainfall and growing conditions than to cutting frequency. Total yields were lowered most during periods of rapid growth. N and P yields were not affected by growing conditions while cutting consistently increased N and P yields. Greater sink strength in cut plants better explained the observed stimulation of N and P yields than did the increased nutrient availability that could result from modified soil water status after cutting. The significance of these results for the ecological grazing management of Sahelian rangelands is discussed. (CAB Abstract)en
dc.format.mimetypetext/plainen
dc.identifier903en
dc.identifier.citationJournal of Applied Ecology 33(2): 387-399en
dc.identifier.doihttps://doi.org/10.2307/2404760en
dc.identifier.issn0021-8901en
dc.identifier.urihttp://hdl.handle.net/10919/65798en
dc.language.isoen_USen
dc.rightsIn Copyrighten
dc.rights.holderCopyright 1996 British Ecological Societyen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectRange managementen
dc.subjectGrazingen
dc.subjectRangelandsen
dc.subjectSoil nutrientsen
dc.subjectDefoliationen
dc.subjectRainen
dc.subjectGrowthen
dc.subjectRangelandsen
dc.subjectGrazingen
dc.subjectNutrient uptakeen
dc.subjectGrasslandsen
dc.subjectCutting frequencyen
dc.subjectMalien
dc.subjectField Scaleen
dc.titleThe effect of clipping on growth and nutrient uptake of Sahelian annual rangelandsen
dc.typeAbstracten
dc.type.dcmitypeTexten

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