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1.
人类生产活动对土壤生态系统的影响   总被引:2,自引:0,他引:2  
人类生产活动对土壤生态系统的影响武志杰(中国科学院沈阳应用生态研究所,110015)InfluenceofHumanActivityonSoilEcosystem¥.WuZhijie(InslituteofAppliedEcology,AcademiaSini-ca,Shenyang110015).ChineseJournalofEcology,1993,12(4):47-51.Therelationshipbetweenhurnanactivityandsoilecosytemisanalysed.Soilecologicalstructureanditsfunctionaregreatlyinfluencedbyhumanactivities,suchasfarming,fertilization,irrigationandpollution.Soilecosystemurgentlyneedstobeprotected.Keywords:soilecology,humanactivity,soilecosystem.1总论土壤生态系统是一种人工干预最多的生态系统。对于土壤生态系统,人类首要的企图是维持  相似文献   

2.
生态农业:一种思想体系传播的实证分析   总被引:1,自引:0,他引:1  
李季 《生态学杂志》1993,12(3):63-67
生态农业:一种思想体系传播的实证分析李季(北京农业大学100094)EcologicalAgriculture:APositiveAnalysisoftheSpreadingofItsIdeology¥.LiJi(DepartmentofLandResources.BeijingAgriculturalUniversity,Beijing100094).ChineseJournalofEcology,1993,12(3):63-67.ThispaperreviewstheoverallhistoriesofecologicalagricultureinChinainthelast10years,includingitsfeatures,researchesandpractices,andgivessomediscussions,conclusionsandperspectivesofitsdevelop-mentaltrend.Keywords:ecologicalagriculture,ecosystem,eco-economics.我国的生态农业从兴起到现在已十余载,其发展之迅猛无论在理论上还是实践上,  相似文献   

3.
新疆博格达山上二叠统非海相网状遗迹化石   总被引:2,自引:0,他引:2  
新疆博格达山上二叠统乌拉泊组和井井子沟组为一套厚逾1000-2400m的湖泊-河流相沉积。在凝灰质砂岩、泥岩和沉凝灰岩中产生丰富的网状类遗化石,主要类别包括Tahlassinoides?teichforimis ichnosp.nov.,T.?cf.teichformis ichnosp.nov.,Paradidymaulichnus reticu-laris ichnosp.nov.和节肢动物拖  相似文献   

4.
山东宁阳早更新世哺乳动物化石(英文)   总被引:2,自引:2,他引:0  
张兆群 《古脊椎动物学报》2001,39(2):139-150,T001,T002
1999年,作者收到王元青博士转来胡长康老师未研究的一批哺乳动物化石。这些化石由山东省博物馆工作人员采自山东宁阳县伏山的裂隙堆积物中。根据化石围岩判断这批化石可归入同一动物群。该动物群包含12种:松鼠科1种(Sciurotamias sp.),兔科2种(Brevilagus brachypus,Lepus sp.),食肉目5种(Pachycrocuta perrieri,Nyctereutes sinensis,Canis variabilis, Homotherium sp.和Meles sp.),牛科2种(Gazella sp., Ovibovinae gen etsp.indet.),鹿科2种(Cervus sp.,Cervidae gen et sp.indet.)。其中,Pachycrocuta perrieri个体明显小于桑氏鬣狗(Pachycrocuta licenti),p2后附尖较发育,p4前附尖高,ml三角座窄。四川巫山原鉴定为桑氏鬣狗的标本中至少有一件下颌骨(重庆自然博物馆,CV877)应当归入此种。Meles sp.具有较周口店第18点发现的Meles chiai及中更新世常见的Meles mel?  相似文献   

5.
真桑钝绥螨对柑桔全爪螨不同螨态的选择性蒲天胜,曾涛,韦德卫(广西农科院植物保护研究所,南宁530007)SelectivePredacityofAmblyseiusmakuwatoVariousMiteFormsofPananychuscitri¥PuTiansheng;ZengTao;WeiDewei(InstituteofPlantProlection,GuangxiAcademyofAgriculturalSciences).ChineseJour-nalofEcology,1993,12(1):33-34。TheselectivepredacityoffemaleadultofA.makuwatocitrusmitesissimulatedincomparisonwithspeciesofAnicholsi.A.makuwashowsanegativepreferencetotheadultofP.citri,butA.nicholsishowsnoselectivityandswitching.Inmulti-formcoexistentsystemofmites,thefunctionalres  相似文献   

6.
影响 培养基PH值变化的因素   总被引:3,自引:0,他引:3  
莫成凡  Will.  RR 《Acta Botanica Sinica》1997,39(4):347-352
植物组织培养基的PH值一旦外植体植入就开始发生改变,直到达到某一平衡点,不同种的植物有其各自的PH平衡点。用6种植物(PilotusexaltatusDessexLehm,LechennultiafomasusR.BR.,RosacaninaL.,Melaleucaalternifolia(Maiden&E.Betche)Cheel,AnigozanthosflatidusDC.,Zieriacy  相似文献   

7.
生态学的精神价值   总被引:1,自引:0,他引:1  
生态学的精神价值陈清硕(江苏农学院扬州225001)SpiritualValueofEcology¥.ChenQingshuo(JiangsuAgriculturalCollege,Yangzhou225001):ChineseJournalofEcology,1993,12(3):68-72.Thispaperdescribesthefunctionsofecologyintheprogressofsocialideologyandcivilization.Ecologyhelpsbringintobeingtheconstructionofascientificworldoutlookandincreasetheecologicalconscious-nessofmankind.Italsosuppliesatotaldevelopmentalpointofviewforthesocietyandprovidesagreataestheticvalue.Thespiritualvalueofecologyshouldneverbeneglected.Keywords:socialecology,ecol  相似文献   

8.
Korb.  SK 《昆虫分类学报》1998,20(1):61-62
本文订正黄人鑫和村山修一(1992)在《蝶と蛾》(43卷1期)上发表的几个蝴蝶新种和新亚种。1.ParnasiusphoebushalasicusHuangetMurayama,1992为Parnasiusphoebusphoebus(Fabr.1793)的新异名。2.ParnasiusariadnejiadengyuensisHuangetMurayama,1992为Driopa(Erythrodiopa)ariadneariadne(Kindermann,1853)的新异名。3.PontiacalidicehalasiaHuangetMurayama,1992为Synchloecalidicecalidice(Hübner)的新异名。4.MelitaeascotosiaweiwueriaHuangetMurayama,1992为MelitaeascotosiabutleriHiggins的新异名。  相似文献   

9.
对江西修水清水岩乡东岭剖面和乐平沿沟剖面的再研究表明,HindeodusparvusMorphotype1在东岭剖面首现于大冶组的最低层位,生物地层界线与岩石地层界线一致,仅比事件地层界线高5-6cm。沿沟剖面Hindeodusparvus带厚仅36cm,其首现与岩石地层界线也一致。张克信等提出的H.latidentatus→H.parvus→H.turgidus→I.isarcica的演化谱系需作进一步修正。依据华南的资料,本文第一作者提出新的演化谱系:H.latidentatus→H.parvus→I.staeschei→I.isarcica。H.turgidus并不在此演化系列中,它属Hindeodus的另一分枝。二叠三叠系界线层的牙形刺应区分出浮游相与浅水相。在浮游相,牙形刺序列为:(1)ClarkinachangxingensisC.deflecta带,(2)C.carinata带,(3)C.planata带。在浅水相,牙形刺序列为:(1)H.latidentatus带,(2)H.parvus带,(3)I.staeschei带,(4)I.isarcica带,(5)H.postparvus带  相似文献   

10.
浅谈沙区资源开发利用的生态观   总被引:6,自引:0,他引:6  
浅谈沙区资源开发利用的生态观姜凤歧,朱教君(中国科学院沈阳应用生态研究所110015)DeveloplnentandUtilizationofSandlandfromEcologicalVicw¥.JiangFengqi.ZhuJiaojun(InstituteofAppliedEcology,AcademiaSinica,Shenyang,110015).ChingesJournalofEcology,1993,12(3):44-46.Withthenaturalresourcedeficientandpopulationincrement,itisimperativetodevelopandutilizesand.1andresource.However,sandlandisthefrailestlinkinthewholeterrestrialecosystem.Inthispaper,thedesertificationcontrolmodelandthenecexsityandpossibilityofsandlandresourcesareexpoundedfromecoloflicalview  相似文献   

11.
昆明附近早寒武世遗迹化石   总被引:3,自引:0,他引:3  
报道了昆明地区下寒武统筇竹寺组玉案山段和沧浪铺组乌龙箐段所发现的遗迹化石共13属15种,其中1新属6新种为:QipanshanichnusgyrusLuoetTaoichnogen.etichnosp.nov.,ArthrophycusqiongzhusiensisLuoichnosp.nov.,BifungiteskunyangensisLuoichnosp.nov.,CruzianabeifengwanensisLuoetGaoichnosp.nov.,PalaeophycusbeifengwanensisLuoichnosp.nov.,ArchaeichniumkunmingensisLuoichnosp.nov.。这些遗迹化石均产于开阔台地相潮下带的低能环境,为浅海相的Gruziana遗迹相。  相似文献   

12.
川东北二叠纪吴家坪期牙形石(刺)序列及其世界对比   总被引:11,自引:3,他引:11  
对四川省宣汉县渡口和南江县桥亭吴家坪期地层的系统采集和研究结果表明,吴家坪期至少包括7个牙形石带,自下而上为Clarkinadukouensis带,C.asymmetrica带,C.leveni带,C.guanyuanensis带,C.transcaucasica带,C.orientalis和C.inflecta带。其中,前3个带的层位低于一直作为吴家坪期早期的C.liangshanensis带。吴家坪阶的顶界以置于C.inflecta带与C.subcarinata带之间较妥。同时,建立了Clarkinadukouensis,C.asymmetrica,C.bizarrensis,C.daxianensis,C.demicornis,C.inflecta,C.longicuspidata等7个新种。  相似文献   

13.
海洋浮游幼虫附着和变态的生态研究   总被引:4,自引:0,他引:4  
郑重 《生态学杂志》1993,12(3):36-38
海洋浮游幼虫附着和变态的生态研究郑重(厦门大学海洋系361005)EcologicalStudyonAttachmentandMetamorphosisofMarinePlanktonicLarvae¥.ZhengZhong(Depart-mentofOceanography,Xiamenuniversity361005).ChineseJournalofEcology,1993,12(3):36-38.Thispapergivesabriefaccountontheecologicalstudyofattachmentandmetamorphosisofmarineplanktoniclarvae.Aftertheterminationofplanktoniclife,thelarvaewillsettledownonvarioussolidsubstrata(rock,stone,wood,algae,etc.)andstartsedentarylife.Itisrevealedthatthelarvaearecapa-bleofselectingsuitablesubstrataforattachme  相似文献   

14.
本文描述云南省叉科(Pseudocaeciliidae)五新种:其中劳属LobocaeciliusLeeetThornton1种;四裂劳L.quadripartitussp.nov,蛇属Ophidodpeoma Enderlein1种;波纹蛇O.Fluctosa sp.nov,异属HeterocaeciliusLeeandThornton3种;八斑异H.octomaculatussp.nov,景洪异H.Jinghongicus sp.nov,乳突异H.papillatussp.nov.。  相似文献   

15.
持续农业与中国的生态农业   总被引:6,自引:0,他引:6  
持续农业与中国的生态农业李萍萍,章熙谷(南京农业大学农学系,210014)SustainableAgricultureandChina’sEcologicalAgriculture¥.LiPingping;ZhangXigu(NanjingAgricul-turalUniversity,210014).ChineseJournaJofEcolegy,1993,12(2):16-18.Thebackground,conceptandcharacteristicsofsustainableagriculturearediscussed,anditssimilaritiesanddifferencestoChina’secologicalagriculturearedescribed.It’sconsideredthatChina’secologicalagri-cultureisaconcretereflectionofsustainableagricultureandasuccessfulmodelforagriculturaldevelop-ment.Keywords:sustainableagricult  相似文献   

16.
Celluloseisthemostabundantnaturalbiopolymer.Howtoutilizeorhydrolyseitisaveryimportantprob-leminthefieldofbiotechnology.Sixstrains(JT)ofthermophilicanaerobicandcellulyticbacteriawereiso-latedfromcamelfeces,compost,soilandhotspringwa-terinJapan.Thesest…  相似文献   

17.
西藏生态农业探讨刘明允,王德亭(西藏农牧学院,八一850400)EcologicalAgricultureinTibet¥.LiuMingyun;Wangbeting(TibeiCollegeofAgricldturalandAnimalHusbondry,850400).ChineseJournalofEcology,1993,12(3):73-75.Inthispaper,fourbasicprinciplesconcerningtheconservationofecologicalagricuItureinTibetareputforwardandsomecharacteristicsandoperatedagrotechniquesofTibe'secologicalagricuIturearesumma-rized.Basedonthese,agro-ecosystemsinTibetareclassifiedintotwogroups,i.e.,temperate-humidforestry-agriculture·animalhusbandrycombinedecosystemandarid-  相似文献   

18.
从广西荔蒲河所产的美丽小条鳅Micronoemacheiluspulcher(NicholsetPope)鳃上采得单殖吸虫一种,经鉴定为锚首虫属一新种──小脊锚首虫,Ancyrocephaluslirellatussp.nov。新种与A.botiae.Maetal.1981后吸器几了质结构相似,但雄性交接器,阴道结构显著不同。  相似文献   

19.
植物化学生态研究促进生态农业建设   总被引:7,自引:0,他引:7  
植物化学生态研究促进生态农业建设祝心如(中国科学院生态环境研究中心,北京100085)PhvtochemicalEcologlcalResearchandEco-AgriculturalConstruction¥.ZhuXinru(ResearchCenterforEco-enuivironmentalSciences.AcademiaSinica,Beijing100085).ChineseJournalofEcology,1993,12(4):36一40。Phytoallelopathyaffectsthefunctionanddynamicsofagro-system,andphytochemicalecologicalre-searchwillbenefittheconstructionofeco-agriculture,whichdisplaysinthefollowingmainaspects:weedcontrol,establishmentofreasonalcroppingsystem,implementationofcropgenicoptimization,re-ductionofap  相似文献   

20.
中国凹盾象属六新种记述(鞘翅目:象虫科)   总被引:2,自引:0,他引:2  
本文记述产于我国的凹盾象属Stenoscelis昆虫6新种,分别为赤杨凹盾象Stenoscelis(Hexastenoscelis)alni sp.nov.,圆窝凹盾象S.foveatus sp.nov.,齿突凹盾象S.acerbus sp.nov.,小点凹盾象S.puncticulatus sp.nov.,洼喙凹盾象S.recavus sp.nov.,和蔚县凹盾象S.yuxianensis sp  相似文献   

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