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《渤海灣近海棲息地變化對大型底棲動物群落結構影響的-研究》由會員上傳分享，免費在線閱讀，更多相關內容在學術論文-天天文庫。
1、上海海洋大學碩士學位論文致環(huán)境的變化會促進多毛類數(shù)量、總風度和總生物量的增長，其中，岸線長度、占用灘涂面積、占用淺海面積與大型底棲動物總豐度呈顯著正相關（p<0.05），占用淺海面積與大型底棲生物總生物量呈顯著正相關（p<0.05）。關鍵詞：渤海灣近岸，棲息地要素變化，大型底棲動物群落變化，遙感萬方數(shù)據(jù)上海海洋大學碩士學位論文MarineHabitatMonitoringandtheHabitatChangesImpactsonMacro-benthosCommunitiesinBohaiBayABSTRACTTheshortageofarablelan
2、dandresources,andtheenvironmentaldegradationhavebeenbecomingthemainproblemswefaceintoday'ssociety.Whenthelandresourcescannotmeettherequirementsforproductionandlivingconditionsgradually,peoplespeedupthedevelopmentofmarineresources,andthisaggravatestheMarineecologicalenvironment.Th
3、echangesoftheMarineecologicalenvironmentcanbeshownbythemacro-benthoscommunitiesanddiversitycharacteristics.Themacro-benthoscommunitycomposition,totalabundance,totalbiomassandotherbiologicalindexchangescanaccuratelyreflectthelong-termchangesofhabitatenvironment.Astheimportantreact
4、ionindexofhumaninterference,thechangesofmacro-benthoshavebeenwidelyappliedtotheenvironmentqualityevaluationinthecoastalzone.Atthesametime,withthedevelopmentofsatelliteremotesensingtechnology,theremotesensingtechnologyhasbecomeaneffectivemeansofmonitoringthechangesofnear-shoreMari
5、nehabitats.Throughtheremotesensing,wecanbemonitoringthechangesofnear-shoreMarinehabitatselementsdirectly,andstudyonchangesofthecoastalbiologicalcommunitycomposition.ThispapertakingtheBohaiBayasthestudyarea,usingremotesensingtogetthechangesofcoastline,tidalflatsandnear-shoreshallo
6、winrecentyearsandcombiningwithpreviousthemacro-benthosresourcessurveydata,studythatthehabitatchangesimpactonmacro-benthoscommunitiesinBohaiBay.Themainworkincludes:(1)Applyingthemethodsofsegmentation(Multi-resolution)andclassification萬方數(shù)據(jù)上海海洋大學碩士學位論文(NearestNeighbor),andtheLandsat
7、TMremotesensingdatein1987,2005,2007,2008,2009,2010and2011,analyzedtheevolutionofcoastline,mudflat,near-shoreshallowinBohaiBayTianjinregionwiththesoftwareofeCognition,ENVIandArcGIS.(2)Collecttherelevantmacro-benthosresourcessurveydataasPolycheata,Mollusca,Crustacea,Echinodermataan
8、dOther,andfiltratethedatethathasthesimil
