doubly-labelled water：doubly-labelled水

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1、25DOUBLY-LABELLEDWATERCALCULATIONPROGRAMUSERGUIDE(version1.0)J.R.SPEAKMANAndC.LEMENFundedbyUKNERCScientificServices&TheUniversityofAberdeen,ScotlandUKJanuary199925CONTENTS1.Background32.Gettingstarted4-53.Estimatinginjectateenrichments24-254.Twosampleexperiments64

2、.1Enteringnewdata4.2Dilution74.3Group74.4Backgroundworksheet8-94.5SetOptions104.6Initialworksheet10-124.7Finalworksheet134.8Savedata144.9Runanalysis14-225.Multiplesampleexperiments6.Tritium7.Acknowledgements251.BackgroundThisprogramcalculatestheCO2productionandinf

3、erreddailyenergyexpenditureandfoodintakefromisotopeenrichmentdataderivedfromdoubly-labelledwaterstudies.Theprogramusesallthealternativeequationsthathadbeenpublishedby1997.Detailsofthederivationoftheequationsalongwithadiscussionofwhichequationsaremostappropriateund

4、erdifferingcircumstancescanbefoundinSpeakman(1997)TheprogramwaswrittenbyC.LemenofNaturewareInc,USAFundingforthisprojectwasprovidedbytheUnitedKingdomNaturalEnvironmentalResearchCouncil(NERC)ScientificServicesandTheUniversityofAberdeen,Scotland,UK.Theprogramisprovid

5、edfreeofchargetobonafideusersoftheDLWmethodwithoutguaranteesorliability.Theonlyconditionofusingtheprogramisthatitsuseisacknowledgedinanypublication.ThisUserGuidemayserveasanappropriatecitation.TheprogramworksinthewindowsenvironmentofanyPC.Minimumsystemrequirements

6、area486machinewith8MbRAMrunningwindows3.1252.GettingstartedToloadtheprogramtransfertheDLW.exefilefromthedisc,ordirectlyfromthewebsiteontotheharddriveofyourPC.Donotlocateitinaspecialfolder.Createanicon,fromwhichtheprogramcanbeaccesseddirectly,orusetheStartandrunopt

7、ions(commandlinedlw.exe)tostarttheprogram.Whenrunningcorrectlytheprogramshouldopenupawindowwithastandardtaskbaratthetopofitandfourpairsoficonsbelow.ChecktheversionnumberunderHelpandAboutTheversionshouldbe1.0orabove.Thesepairsoficonsallowdirectaccessintothedifferen

8、toperationsthatareavailable.AlternativeaccessisviatheFilecommandonthetaskbar.2.1TwosamplestudiesThefirstpairoficons.Theseareprotocolswherethesubjecthasb