Dissolved organic matter in relation to nutrients (N and P) and heavy metals in surface runoff water as affected by temporal variation and land uses - A case study from Indian River Area, south Florid
文献类型：期刊论文
| ; | |
| 作者 | Yuangen Yang; Zhenli He; Yanbo Wang; Jinghua Fan; Zhanbei Liang; PeterJ.Stoffella |
| 刊名 | Agricultural Water Management
 ; Agricultural Water Management
|
| 出版日期 | 2013 ; 2013 |
| 卷号 | 118页码:38-49 |
| 关键词 | Agricultural Fields Agricultural Fields golf Course ranch dissolve Dorganic Carbon water Flow watershed golf Course ranch dissolve Dorganic Carbon water Flow watershed |
| 英文摘要 |
Transportofdissolvedorganicmatterinrunoffwaterplaysacriticalroleintheincreasedinputsofnutrients(NandP)andmetals(Fe,CuandZn)inwater,andthedepositionofmucksedimentsintheSaintLucieEstuaryandIndianRiverLagoon,Florida.Theobjectivesofthisstudyweretoinvestigatethevariationofdissolvedorganiccarbon(DOC)anddissolvednitrogen(DN)insurfacerunoffwaterwithvaryinglanduses,andtoexploretheirpossiblerelationswiththeleachinglossesofnutrientsNandP,andmetalsFe,Cu,andZnfromdifferentlanduses.Forthis,surfacerunoffwaterfromtwomajoragriculturalproductionsystems(citrusgroveandvegetablefarm)insouthFloridawascollectedweeklyusingpre-installedautosamplersduringJan.2008–Mar.2010.Meanwhile,runoffwaterfromtwelvefieldsiteswithvaryinglanduses(suchasranch,golfcourse,andforest)wascollectedmonthlyusingagrabsamplerfromAug.2008toApril,2010,andsoilswerecollectedatthedepthof0–15cmand15–30cmtwiceayearfromautosampler-installedlocationsandonNov.25th,2008fromgrabsamplinglocationsaswell.Inthefield,watersamplesweremeasuredforelectricalconductivity,dissolvedoxygen,andtemperature;inthelaboratory,watersampleswereanalyzedforpH,totalsolids,turbidity,DOC,DN,totalP(TP),andmetalsCu,FeandZnwithorwithoutpassinga0.45 mfiltermembrane.Afterpassinga2mmsieve,freshsoilsampleswereanalyzedformoisture,pH,electricalconductivity,0.5MK2SO4solutionextractableDOC/DN,andMehlich3extractableP,Fe,Cu,andZn.SpatialandtemporalvariationsintheconcentrationsofDOCandDNinrunoffwaterwereobserved,withthegreatestaverageconcentrationsofDOCandDNfromranch(∼28and∼2.3mgL−1)andthelowestfromgolfcourse(∼16mgL−1)forDOCandfromforestandnurseryforDN(∼1.5–1.6mgL−1),respectively.TemporalfluctuationsofDOCandDNinrunoffwaterfromvaryinglanduseswereingoodaccordwithrainfallintensityandfrequencyofrainfall.TemporalvariationsofTPandmetalsFe,Cu,andZnwereinfluencedbyclimaticconditionaswell.CitrusgroveexportedgreateramountsofDOCandDNinrunoffwater(27.6and3.51mgL−1ofmedianvalue)thanvegetablefarms(13.8and2.26mgL−1ofmedianvalue).AnnualcumulativeloadsofDOCandtotalNin2008,2009or2010were>20kgha−1,greaterthanthoseofTP(<13.5kgha−1)andmetalsFe,Cu,andZn(<1.5kgha−1).RanchsoilhadthehighestextractableDOCconcentration(>100mgkg−1),accountingfor1%ofitstotalorganiccarbon.SoilextractableDNhadsignificantcorrelationswithextractablePandCu/Zninsoils.Inconclusion,soiltotalorganiccarbonpoolanditsavailabilityhadanimportanteffectonDOCandDNinrunoffwater.LandusetypeandrainfalleventwerethetwoinfluentialfactorsaffectingconcentrationsofDOCandDN,andtheexportofnutrientsNandP,andmetalsinrunoffwater. ;
Transportofdissolvedorganicmatterinrunoffwaterplaysacriticalroleintheincreasedinputsofnutrients(NandP)andmetals(Fe,CuandZn)inwater,andthedepositionofmucksedimentsintheSaintLucieEstuaryandIndianRiverLagoon,Florida.Theobjectivesofthisstudyweretoinvestigatethevariationofdissolvedorganiccarbon(DOC)anddissolvednitrogen(DN)insurfacerunoffwaterwithvaryinglanduses,andtoexploretheirpossiblerelationswiththeleachinglossesofnutrientsNandP,andmetalsFe,Cu,andZnfromdifferentlanduses.Forthis,surfacerunoffwaterfromtwomajoragriculturalproductionsystems(citrusgroveandvegetablefarm)insouthFloridawascollectedweeklyusingpre-installedautosamplersduringJan.2008–Mar.2010.Meanwhile,runoffwaterfromtwelvefieldsiteswithvaryinglanduses(suchasranch,golfcourse,andforest)wascollectedmonthlyusingagrabsamplerfromAug.2008toApril,2010,andsoilswerecollectedatthedepthof0–15cmand15–30cmtwiceayearfromautosampler-installedlocationsandonNov.25th,2008fromgrabsamplinglocationsaswell.Inthefield,watersamplesweremeasuredforelectricalconductivity,dissolvedoxygen,andtemperature;inthelaboratory,watersampleswereanalyzedforpH,totalsolids,turbidity,DOC,DN,totalP(TP),andmetalsCu,FeandZnwithorwithoutpassinga0.45 mfiltermembrane.Afterpassinga2mmsieve,freshsoilsampleswereanalyzedformoisture,pH,electricalconductivity,0.5MK2SO4solutionextractableDOC/DN,andMehlich3extractableP,Fe,Cu,andZn.SpatialandtemporalvariationsintheconcentrationsofDOCandDNinrunoffwaterwereobserved,withthegreatestaverageconcentrationsofDOCandDNfromranch(∼28and∼2.3mgL−1)andthelowestfromgolfcourse(∼16mgL−1)forDOCandfromforestandnurseryforDN(∼1.5–1.6mgL−1),respectively.TemporalfluctuationsofDOCandDNinrunoffwaterfromvaryinglanduseswereingoodaccordwithrainfallintensityandfrequencyofrainfall.TemporalvariationsofTPandmetalsFe,Cu,andZnwereinfluencedbyclimaticconditionaswell.CitrusgroveexportedgreateramountsofDOCandDNinrunoffwater(27.6and3.51mgL−1ofmedianvalue)thanvegetablefarms(13.8and2.26mgL−1ofmedianvalue).AnnualcumulativeloadsofDOCandtotalNin2008,2009or2010were>20kgha−1,greaterthanthoseofTP(<13.5kgha−1)andmetalsFe,Cu,andZn(<1.5kgha−1).RanchsoilhadthehighestextractableDOCconcentration(>100mgkg−1),accountingfor1%ofitstotalorganiccarbon.SoilextractableDNhadsignificantcorrelationswithextractablePandCu/Zninsoils.Inconclusion,soiltotalorganiccarbonpoolanditsavailabilityhadanimportanteffectonDOCandDNinrunoffwater.LandusetypeandrainfalleventwerethetwoinfluentialfactorsaffectingconcentrationsofDOCandDN,andtheexportofnutrientsNandP,andmetalsinrunoffwater. |
| 语种 | 英语 ; 英语 |
| 源URL | [http://ir.gyig.ac.cn/handle/42920512-1/11111]  |
| 专题 | 地球化学研究所_环境地球化学国家重点实验室 |
| 作者单位 | 1.University of Florida,IFAS,Indian River Research and Education Center,2199 South Rock Road,Fort Pierce,FL34945,USA 2.Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China |
| 推荐引用方式 GB/T 7714 | Yuangen Yang,Zhenli He,Yanbo Wang,et al. Dissolved organic matter in relation to nutrients (N and P) and heavy metals in surface runoff water as affected by temporal variation and land uses - A case study from Indian River Area, south Florid, Dissolved organic matter in relation to nutrients (N and P) and heavy metals in surface runoff water as affected by temporal variation and land uses - A case study from Indian River Area, south Florid[J]. Agricultural Water Management, Agricultural Water Management,2013, 2013,118, 118:38-49, 38-49. |
| APA | Yuangen Yang,Zhenli He,Yanbo Wang,Jinghua Fan,Zhanbei Liang,&PeterJ.Stoffella.(2013).Dissolved organic matter in relation to nutrients (N and P) and heavy metals in surface runoff water as affected by temporal variation and land uses - A case study from Indian River Area, south Florid.Agricultural Water Management,118,38-49. |
| MLA | Yuangen Yang,et al."Dissolved organic matter in relation to nutrients (N and P) and heavy metals in surface runoff water as affected by temporal variation and land uses - A case study from Indian River Area, south Florid".Agricultural Water Management 118(2013):38-49. |
入库方式： OAI收割
来源：地球化学研究所
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