Comparisonofsoilnematodecommunitycharacteristicsbetweencoastalwetlandandlong-termreclaimedfarmlandinTianjinFENGMiao1，2，SHIYan1，2，GUOChangcheng1，GAOJian1，WANGYidong1，2（1.TianjinKeyLaboratoryofWaterResourcesandWaterEnvironment，TianjinNormalUniversity，Tianjin300387，China；2.SchoolofGeographyandEnvironmentScience，TianjinNormalUniversity，Tianjin300387，China）Abstract：Inordertodeeplyexplorethechangesofnematodecommunitycharacteristicsbeforeandafterreclamationincoastalwetlands，TianjinBeidagangwetland，Qilihaiwetlandandtheirreclaimedfarmlandwerechosenastheresearchobjects.Thesoilsamplewascollectedfrom0-15cmlayer，andthenematodesisolatedfromthesoilweredividedintodifferentnutrienttypesandlifehistoryatthegeneralevel.Theabundanceandproportionofnematodesindifferentgroupswereanalyzed，andthedi-versityindexandfunctionalindexofsoilnematodeswerecalculated.Theresultsshowedthatatotalof8630soilnematodeswerecapturedinthestudyarea，belongingto32genera，andthedominantgeneraswereAcrobeloides，Aphelenchus，HelicotylenchusandDolichodoridae，accountingfor49%ofthetotalnematodescaptured.Afterlong-termreclamationofthewetlandsinthestudyarea，soilnematodeabundanceincreasedfrom342piecesper100gdrysoilto737pieces，whichincreasedby38%inBeidagangareaand194%inQilihaiarearespectively.Thenumberofgeneraalsochanged，whichwasmainlycausedbythein-creaseofbacteriafeedingnematode，fungusfeedingnematode，c-p1groupandc-p2group.Afterlong-termreclamationofthewetlands，thechangeintheBeidagangareawasnotsignificant，andtheShannondiversityindexandrichnessindexinQilihaiareasignificantlyincreasedby48.95%and51.58%respectively.Onlytheenrichmentindexoffunctionalindexsignificantlyin-creasedby103%inQilihaiarea.TherewasastrongcorrelationbetweensoilpHvalueandnematodeecologicalindexaswellasnematodecomposition.Inconclusion，afterthereclamationofcoastalwetlandsforfarmland，soilnematodecommunityspecies天津滨海湿地与其长期开垦农田间土壤线虫群落特征的比较冯苗1，2，史妍1，2，郭长城1，高健1，王义东1，2（1.天津师范大学天...
