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富营养化水体中蕹菜生理指标的变化研究(英文).docx

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富营养化水体中蕹菜生理指标的变化研究(英文) NutrientEnrichmentandPhysiologicalChangesinWaterspinachinEutrophicWaterBodies Introduction: Eutrophicationistheprocessofexcessivenutrientenrichmentinwaterbodies,primarilynitrogenandphosphorus.Thisprocessresultsintheproliferationofaquaticplantsandalgae,whichcannegativelyimpactwaterqualityandaquaticbiodiversity.Oneofthemostcommonandeconomicallyimportantaquaticplantsiswaterspinach(Ipomoeaaquatica),whichisapopularvegetableinSoutheastAsiancuisine.Theaimofthisstudyistoinvestigatethephysiologicalchangesinwaterspinachinresponsetonutrientenrichmentineutrophicwaterbodies. MaterialsandMethods: Waterspinachwasgrownintwodifferentwaterbodies:onewithnormalnutrientlevelsandtheotherwithelevatednutrientlevelstosimulateeutrophication.Sampleswerecollectedatregularintervals,andthefollowingphysiologicalparametersweremeasured:chlorophyllcontent,leafarea,plantheight,rootlength,biomass,andnutrientcontent(nitrogenandphosphorus). Results: Theresultsshowedthatwaterspinachgrownintheeutrophicwaterbodyhadsignificantlyhigherchlorophyllcontentthanthosegrowninthenormalnutrientwaterbody.Additionally,eutrophicwaterspinachhadlargerleafarea,greaterplantheight,andlongerrootlength.However,therewerenosignificantdifferencesinplantbiomassbetweenthetwotreatments.Furthermore,thenitrogenandphosphoruscontentintheeutrophicwaterspinachwassignificantlyhigherthanthatinnormalnutrientwaterspinach. Discussion: Theincreaseinchlorophyllcontentineutrophicwaterspinachindicatesthattheplantwasadaptingtotheexcessnutrientsbyincreasingitsphotosyntheticcapacity.Thelargerleafareaandplantheightsuggestthateutrophicwaterspinachhadagreatercapacityforlightcaptureandnutrientacquisition.Thehighernitrogenandphosphoruscontentineutrophicwaterspinachislikelyduetoincreaseduptakeofthesenutrientsfromthewater. Conclusion: Inconclusion,thisstudyshowedthatwaterspinachgrownineutrophicwaterbodiesexhibitedphysiologicalchanges,includingincreasedchlorophyllcontent,largerleafarea,greaterplantheight,andhighernutrientcontent.Thesec