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简介：<正>OnSeptember.17,2013,thefifthChinaEcologicalandGreenCompetitivenessConferencewasheldinDatong,Shanxi.Thisconferenceisco-organizedbytheCCPIT,EconomicCommitteeoftheCCPCCandNationalForestryBureau.Theconferencecontinuesitspragmaticstylewithglobalinsight,andfocusesitsdiscussionsaroundtopicslike"fromblacktogreencivilization"and"new

简介：TopromotetheecologicalcivilizationhasbeendeterminedasoneofthesignificantagendaforChina’sdevelopmentstrategy.However,theshortfalloffundingmighthindertheprogress.Therefore,newfinancingresourcesandchannelsareurgentlyrequired.Trusthasbeenseenasapopularinvestingandfinancinginstrumentduetoitscomprehensivebenefitssuchasequityrestricting,financialindependenceandcontinuity,etc.Iftrustcompaniesprovideservicestoenvironmentalprotectionandestablish"greentrust"or"greenfunds",itwouldfullywidenfinancingchannelofgreenindustryandcontributetoChina’ssustainabledevelopment.

简介：Theartificialecologicalfloatingbediswidelyusedinriversandlakestorepairandpurifypollutedwater.However,thewaterflowpatternandthewaterleveldistributionaresignificantlychangedbythefloatingbeds,andtheinfluenceonthewaterflowisdifferentfromthatofaquaticplants.Inthispaper,basedonthecontinuousporousmediamodel,amoveabletwo-layercombinationmodelisbuilttodescribethefloatingbed.Theinfluencesofthefloatingbedsonthewaterflowcharacteristicsarestudiedbynumericalsimulationsandexperimentsusinganexperimentalwaterchannel.Thevariationsofthewaterleveldistributionarediscussedunderconditionsofdifferentflowvelocities(v=0.1m/s,0.2m/s,0.30m/s,0.4m/s),floatingbedcoveragerates(20%,40%,60%)andarrangementpositionsawayfromthechannelwall(D=0m,0.1m,0.2m).Theresultsindicatethattheflowvelocityincreasesunderthefloatingbeds,andthewaterlevelrisessignificantlyunderhighflowvelocityconditionsintheupstreamregionandthefloatingbedregion.Inaddition,theaveragerisingwaterlevelvalue(ARWLV)increasessignificantlywiththeincreaseofthefloatingbedcoveragerate,andthearrangementpositionoffloatingbedsintherivercanalsogreatlyinfluencethewaterleveldistributionunderahigh-flowvelocitycondition(v?0.2m/s).

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简介：TheNineplateaulakesarethoselakeswhoseareasarelargerthan30km2inYunnanprovince.TheselakesareDianchiLake,ErhaiLake,FuxianLake,ChenghaiLake,LuguLake,QiluLake,XingyunLake,YangzonghaiLake,andYilongLake.Thenineplateaulakesareimportantforeconomicdevelopmentandforecologicalsecurity.However,alllakesarefacingdifferentenvironmentalissuessuchaseutrophicationandwaterqualitydegradation.Differentstrategiesshouldbeproposedaccordingtothevariousconditionsofthelakes.Threetypesofprevention,controlandtreatmentstrategieswereproposedbasedonthesuccessionprocess,theecologystages,theeconomicandsocialdevelopment,theeutrophicationstages,thewaterqualities,andthedominantecologicalfunctions.

简介：BasedontrawlsurveysintheBeringSeaandChukchiSeaduringthe2010ChineseNationalArcticResearchExpedition,fishbiodiversitycharacteristics,suchasfishcomposition,dominantspecies,biodiversity,andfaunalcharacteristicswereconducted.WealsodiscussedtheresponsesoffishestothequickchangesinArcticclimate.Theresultsshowedthatatotalof41speciesin14familieswererecordedinthesewaters.ThedominantspecieswereHippoglossoidesrobustus,Boreogadussaida,Myoxocephalusscorpius,Lumpenusfabricii,andArtediellusscaber.Therewere35coldwaterspecies,accountingfor85.37%,andsixcoldtemperatespecies,occupying14.63%.Thehabitattypesoffishcouldbegroupedasfollows:35speciesofdemersalfishes,fivebenthopelagicfishes,andonepelagicfish.TheShannon–Wienerdiversityindex(H)(rangebetween0and2.18,1.21onaverage)wasnothigh,anddescendedfromsouthtonorth.ClimatechangehascausedsomefishestoshiftalongtheirlatitudinalandlongitudinaldistributionaroundtheArcticandSubarcticareas,andthiscouldleadtothedeclineofArcticfisheryresources.

简介：HenryDavidThoreauandJamesFennimoreCooperareregardedasrepresentativesofAmericanRomanticism.Andacloseanalysisoftheirmasterpiecesrevealsquiteafewecologicaltracesinthem.Bycomparingtheirwritingstyleswitheco-literatureinAmerica,thepresentpaperfindsthattheyhavealotincommon.Baseduponthis,itistobebelievedthattheromanticisminthe19thcenturyofAmericabreedsthelaterecologicalliterature.

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简介：<正>BrackishandsalinelakesarecommoninthearidzonesoftheEarth.TheyareuniqueecosystemswithextremelyhighpHvaluesandhighmineralizationlevels(uptosaturatingconcentrations).Theselakesareinhabitedby

简介：在2011年10月，种形成，分发，和潜在的生态的风险在厦门海湾基于表面沉积的调查对在这个区域的重金属(Cu，Pb，Zn，Cd，和Cr)的评价用顺序的抽取方法和生态的风险评价被学习方法。结果显示了：(1)这些重金属的全部的集中被流量，工业废水，和污水影响，并且都比的在沿海的区域是更高的近海区域当Pb的最高的区域由于空气是远一些的离开沿海的水时免职；(2)顺序的抽取建议Cu主要与剩余被填写，Fe/Mn-oxide绑了部分，Pb被绑在Fe/Mn-oxide，Zn和Cr被剩余统治，并且Cd跳了到可交换并且碳酸盐部分；(3)移植和转变顺序的顺序是Cd>Pb>Cu>Zn>Cr和污染的度是Cd>Pb>Cu>Zn>Cr；并且(4)第二等、主要的阶段的比率证明Zn和Cr两个都是干净的，Cu可以被弄脏，Pb中等被弄脏，当Cd重重地被弄脏时。

简介：<正>1IntroductionIn2006,planktoninvestigationwascarriedoutinthelakesinAlidistrict,Tibet.7planktoniccrustaceanswereidentifiedandreported.MetadiaptomusasiaticusUljanirswasreportedforthefirsttimeontheQTP(Yuanetal.,2007).However,detaileddataonthisspecies,especiallyitsecologicalsignificance,werenotmentioned.Inthis

简介：Apopulationofricebrownplanthopper(BPH)NilaparvatalugenscollectedfromapaddyfieldinHangzhouwassuccessivelyrearedonsusceptiblericeTaichungNative1(TN1)inalaboratoryfreefrominsecticidesformorethan14generations.Thechangesinsusceptibilitytoinsecticidesandecologicalfitnessondifferentresistantricevarietiesweremonitoredineachgeneration.Theresistanceratiotoimidaclopridsharplydeclinedwiththesuccessionofrearinggenerationswithoutinsecticidesfrom359.94-foldatF1to6.50-foldatF14comparedwiththesusceptiblestrain,andtheresistanceratiotochlorpyrifoswasfrom9.90-foldatF1to5.94-foldatF14.Nymphaldurationandweightsofnewlyhatchedfemaleadultsweresignificantlyaffectedbyricevariety,generationandtheirinteractions,butnymphalsurvivalwassignificantlyaffectedbythegenerationonly.Theratioofbrachypterousadultsinmaleswasaffectedbythegenerationandgeneration×varietyinteraction,whereasnodifferencewasfoundinfemales.Nymphaldurationextendedwithincreasinggenerations,andthefemalenymphaldurationwasshorterinthesusceptiblevarietyTN1thanthoseintheresistantvarietiesIR26andIR36.Inaddition,thefemaleadultweightinTN1washigherthanthoseinIR26andIR36.TheseresultsindicatedthattheresistanceoffieldBPHpopulationtoinsecticideswasreversedafterseveralgenerationsofno-exposuretoinsecticides,andtheecologicalfitnessinTN1washigherthanthoseinIR26andIR36.ThesefindingssuggestedtherationalandreduceduseofinsecticidesincombinationwiththemanipulationofresistantricevarietieswouldbeeffectiveforBPHmanagement.