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几种生态因子对双齿围沙蚕早期生活的影响 总被引:4,自引:0,他引:4
几种生态因子对双齿围沙蚕早期生活的影响石小平,赵清良(安徽师范大学,芜湖241000)(南京师范大学,210024)EffectsofseveralEcologicalFactorsonEarlyStage,survivalandGrowthofPerinereisAibuhitensis¥ShiXiaoping(AnhuiNormalUniversity,Wuhu241000),ZhaoQingliang(HanjingNormalUniversity,210024).(Chinese,JournalofEcology,1993,12(5):21-24。ThispaperdealswiththeeffectsofpH,salinity,densityandmediumontheearlystage-developmentandgrowthofPerinereisaibuhilnesis.TheresultsshowthattheoptimumpHforitshatchingis7.0-7.5,underwhich,suitableslinityisintherangeof15-40%,andThesuit 相似文献
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重庆地区“双千田”组合模式及效益分析郑钦玉,朱自均,胡声荣,袁可(西南农业大学,重庆630716)雷炎,李登国,程世宇,温永学,刘官堂(四川省巴县农业局)CombinationModelsof"TonGrainYieldingField"inChongqingAreaandTkeirBenefitAnalysis¥.ZhengQinyu;ZhuZhijun;HuShengrong;YuanKe(SouthwestAgriculturalUniversity,Chongqing630716),LeiYan,LiDengguo,ChengShiyu,WenYongxue,LiuGuantang(BaxianBureauofAgriculture,SichuanProvince).ChineseJoumalofEcolegy,1993,12(2):34—36.Inthelightoftheeffectsandproblemsofdevelopingwinter-croppingpaddyfieldsinChongqingareaandinordertosearchaftertheoptimummodelofref 相似文献
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关于灌木生物量建模方法的改进 总被引:23,自引:0,他引:23
关于灌木生物量建模方法的改进张峰,上官铁梁李素珍(山西大学生物系,太原030006)(太原治金工业学校,030002)ImprovementontheModellingMethodofBiolmassofBrush¥ZhangFeng;ShangguanTieliang(Depart-mentofBiology,ShanxiUniversity,Taiyuan030006),LiSuzhen(TaiyiianMetallitrgicalSchool,Taiyuan030002).ChineseJournalofVEcology,1993,12(6):67-69.DuringmakingresearchonthebiomassofElaeagnusmollis,theregressionmodelofthebiomassisbuiltbyreplacingD ̄2HwithCH,Theresultshowsthatnotonlyitisconvinientinthefieldwork,butalsotheforecastmodelhasmoreDrecisionwhenCHisusedastheindepend 相似文献
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松嫩平原退化盐渍草地生态特性研究侯彦林(北京农业大学博士后站土地资源系,100094)EcologicalCharacteristicsofDegradedSalineGrasslandinSongnenPlain¥HouYanlin(DepartmentofLandResourceSciences,BeijingAgriculturalUniversity,100094).ChineseJournalofEcology,1993,12(1):11-14.TheresearchesshowthatthesalinegrasslandinSongnenPlainhasbeengenerallyandrapidlydegradedbyheavygrazing.Intheprocessofgrasslanddegradation,soildeteriorationissomewhatslowercom-paredwithvegetationdegradation,whichdeterminesthefactthatanimalhusbandryisthechiefwayofexploitingsoda-aline 相似文献
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生态网络分析的研究进展 总被引:6,自引:0,他引:6
生态网络分析的研究进展韩博平(厦门大学生物系,361005)ProgressesontheAnalysisofEconetwork¥HanBoping(BiologyDepartment,XiamenUniversity,Xiamen361005);ChineseJournalofEcology,1993,12(6):41-45.Econetworkisastructuralmodelwhichisusedtosimulatetheflowofmaterialandenergyinecosystem。Theanalysisofeconetworkisthetheoryandmethodstoanalyzetheflowbehaviorandfeatureofmaterialandenergyineconetwork,itincludestheanalysisofflowfeature,informationindices,stochasticpro-cess,trophiclevelandsensitivity.Areviewissystematicallygiven.Keywords:econetwork 相似文献
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土壤含水量与头季稻和再生稻产量的关系 总被引:2,自引:0,他引:2
土壤含水量与头季稻和再生稻产量的关系熊洪SombatChinawong(四川省农科院水稻高粱所,泸州646100)(KasetsartUniversity,Bangkok73140)RelationshipBetweenSoilWaterConten... 相似文献
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集约高产过程中土壤有机质动态初探 总被引:2,自引:0,他引:2
集约高产过程中土壤有机质动态初探崔玉亭,韩纯儒(北京农业大学,100094)DynamicsofSoilOrganicMatter(SOM)intheProcessofAgriculturalIntensification¥.CuiYuting;HanChunru(BeijingAgriculturalUniversity,100094).ChineseJournalofEcology,1993,12(2):37—38.Inthispaper,thebalanceofsoilorganicmatter(SOM)intheprocessofagriculturalintensificationinChangzhouregionisstudiedandamedium-andlong-termpredictionofitsdynamicsismade。There-sultsshowthatduringthisprocess,thebalanceofSOMisgettingbetter,andafteramediumorlongpe-riod(e.g,10—20yeats),theSOMcontentcangett 相似文献
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里骆林区常绿阔叶林和人工杉木林气候水文效应 总被引:13,自引:2,他引:11
里骆林区常绿阔叶林和人工杉木林气候水文效应黄承标,文受春(广西农学院林学分院南宁530001)(广西龙胜县林业局541700)ClimaticandHydrologicalEffectsofEvergreenBroad-leavedandArtificialChineseFirForestsinLiluoForestedRegion¥HuangChengbiao(ForestryCollege,CuangxiAgriculturalUniversity,Nanning530001),WenShouchun(ForestryBureau,LongshengCounty,Guangxi541700);ChineseJournalofEcol-ogy,1993,12(3):1-7.Siteinvestigationsandresearchesin1980-1990showthatevergreenbroad-leavedandartificialChinesefirfOrestsinLiluoforestedregioncanreducethevariationrangeofatmosphericandsoilt 相似文献
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第九次国际冬眠学术会议介绍孙儒泳(北京师范大学生物系100875)第九次国际冬眠学本会议(低温生存学术会议)于1993年10月2—9日在美国科罗拉多州CrestedButte召开。会议由ColoradoStateUniversity的生物系主办。参加... 相似文献
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我国地方植物志出版情况简介(四)刘全儒,马金双(北京师范大学生物系,北京100875)INTRODUCTIONTOLOCALFLORAOFCHINA(Ⅳ)¥LiuQuanru;MaJinshuang(BeijingNormalUniversity,B... 相似文献
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水稻热值的动态变化研究 总被引:41,自引:4,他引:37
水稻热值的动态变化研究孙国夫,郑志明,王兆骞(浙江农业大学农业生态研究所,杭州310029)DynamicsofCalorificValuesofRice¥SunGuofu;ZhengZhiming;WangZhaoqian(InstituteofAgro-Ecology,ZhejiangAgriculturalUniversity,Hangzhou310029).ChineseJournalofEcology,1993,12(1):1-4。DeterminationswithShimadzuCA-3AutomaticBombcalorimetershowthatafterpregnancystage,thecalorificvaluesofricestem,leafandleafsheatharedecreasedgradually.Thecalorificvalueofleafispositivelycorrelatedwithriceyield,anditsvariationtendencyiscoincidedwiththatofenergysynthesis,accumulation,transp 相似文献
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中国中亚热带地区引种玉米的气候生态适宜性分析翟玉顺,章熙谷(中国科学院南京土壤研究所生态室,210008)(南京农业大学农学系,210014)Eco-climaticSuitabilityofIntroducedCorninMidSub-tropicalRegionofCbina¥.ZhaiYushun(InstituteofSoilScience,AcademiaSinicaNanjing,210008),ZhangXigu(NanjingAgriculturalUniversity,Nan-jing,210014).ChineseJournalofEcology,1993.12(2):73-75.Throughanalyzingtheecologicalsuitabilityofintroducedcorntosunshine-temperature-precipitationanditsclimaticpotentialproductivityinmidsub-tropicalregionofChina,itisfoundthatAprilandthefirstandsecondten-daysofM 相似文献
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农业系统生产力(ASP)的量化及其现状分析 总被引:6,自引:0,他引:6
农业系统生产力(ASP)的量化及其现状分析卢进登,韩纯儒(北京农业大学农学系,100094)QuantificationofAgrosystemProductivity(ASP)andAnalysisonitsCurrentSituationinCbina¥.LuJin-deng;HanChunru(BeijingAgriculturalUniversityfBeijing100094).ChineseJournalofEcology,1993,12(2):21-22.BasedonabriefanalysisontheformationprocessofASP,itsconceptisdescribedandanintegratedindi-catorforitsquantification—ASP2isputforwards.Fromthose,theASPlevelsinvariousregionsofChinaareanalyzedand8levelsaredividedbyusing.Hierarchicclusteringmethod.It’s:clarifiedthatAS-PIisamore 相似文献
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秦岭南坡旬河流域及邻近地区森林与其生境关系的初步研究 总被引:3,自引:0,他引:3
秦岭南坡旬河流域及邻近地区森林与其生境关系的初步研究康慕谊(西北大学地理系,西安710069)RelationshipbetweenForestVegetationandItsHabitatsinXunheRiverBasinofQinlingMountainandItsAdjacentAreas¥KangMuyi(DepartmentofGeography,NorthwestUniversity,Xiaan710069).ChineseJournalofEcology,1993,12(6):62-66.Principlesofvegetationecologyandmethodofmultivariateanalysis(DoubleSievingStepRegression)areappliedtorevealthegeneralrelationshipbetweenforestvegetationanditshabitatsintheupperandmid-dlereachesofXunheRiverbasinandtheiradjacentareas。Theresultsshowthatthespe 相似文献
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(TheRiseofBirds:225MillionYearsofEvolution,bySankarChatterjee,1997.TheJohnsHopkinsUniversityPress,BaltimoreandLondon.312pp.75illus.)由一个研究恐龙的学者写鸟类学专著的书评,这似乎有一些不妥。不过,如果读者知道这本鸟类学专著的作者实际上也是一个恐龙学家,那么就不会感到惊讶了。况且,这本书中很大一部分都在讨论原始鸟类与小型兽脚类恐龙之间的关系。美国德州理工学院桑喀·蔡特… 相似文献
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关于紫菜生活史的讨论 总被引:1,自引:0,他引:1
关于紫菜生活史的讨论钟恒(中山大学生物系,广州510275)NOTESONTHELIFECYCLEOFPORPHYRAZhongHeng(DepartmentofBiology,ZhongshanUniversity,Guangzhou510275)... 相似文献