a study of the impact of anthropogenic activities in the…

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1、ASTUDYOFTHEIMPACTOFANTHROPOGENICACTIVITIESINTHECROCODILERIVER,MPUMALANGA.byMTHOBISIINNOCENTSOKOsubmittedinfulfillmentoftherequirementofthedegreeofMASTEROFSCIENCEInthesubjectENVIRONMENTALSCIENCEattheUNIVERSITYOFSOUTHAFRICASUPERVISOR:DRT.GYEDU-ABABIOJULY2014Studentnu

2、mber:48197319IdeclarethatTHESTUDYOFIMPACTOFANTHROPOGENICACTIVITIESINTHECROCODILERIVER,MPUMALANGAismyownworkandthatallthesourcesthatIhaveusedorquotedhavebeenindicatedandacknowledgedbymeansofcompletereferences.……………………………….…………………………SIGNATUREDATE(MrMISoko)iACKNOWLEDG

3、EMENTSIwishtoacknowledgeandsendmysinceregratitudetothefollowingpeoplefortheirassistanceandadviceinvariousformsduringthecourseofthestudy.DrThomasGyedu-Ababio,whohassupportedmethroughoutmydissertationwithhisguidanceandpatience.Iattributethecompletionofthisdissertati

4、ontohisencouragementandeffort.DrMartinFerreiraforhisassistanceandexpertisewiththestatisticalanalysisofthedata.Mr.HendrickSitholeforhisassistancewiththemacro-invertebratesdataforthelowerCrocodileRiver.Mr.FranciosRouxforprovidingmewiththereferenceandexpectedspecie

5、sintheCrocodileRiverCatchment.TheDepartmentofWaterAffairsfortheunrestrictingaccessofwaterqualitydata.TheDepartmentofAgricultureandEnvironmentalScienceattheUniversityofSouthAfricaforgivingmetheopportunitytoconductthestudy.MycolleaguesatDepartmentofWaterAffairs,An

6、diswaMakamandMahlodiDikgalefortheirsupportandencouragementduringthecourseofthestudy.Ialsowishtothankthefollowingspecialpeopleinmylife;MywifeThandekaMhlabaneandmysonOwethuSokofortheirpersonalsupportandgreatpatienceatalltimes.iiABSTRACTInSouthAfricawaterisrecognized

7、asacrucialelementinthebattleagainstpoverty,thecornerstoneofprosperity,andalimitingfactortogrowth.TheNationalWaterAct36of1998recognizesthatbasichumanandenvironmentalneedsshouldbemetandthattheuseofwaterinallaspectsmustbesustainable.TheCrocodileRiver(East)issituatedin

8、thenortheastoftheRepublicofSouthAfricaanditisrecognizedasastressedcatchmentinSouthAfrica.Themainimpactsaredomestic,industrial,agricultural,mining