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1.
九种二变种山茶属植物的核型报道   总被引:5,自引:1,他引:4  
本文报道了9种2变山茶属植物的核型.结果如下:Cameliahenryana:2n=2x=30=21m+8sm+1st;C.furfuracea:2n=2x=30=20m+10sm;C.wardi:2n=2x=30=18m+11m+1st;C.anlungensis:2n=2x=30=19m+9sm+2st;C.anlungensisvar.acutiperulata:2n=2x=30=19m+9sm+2st;C.pyxidiacea:2n=2x=30=20m+8sm+2st;C.pyxidiaceavar.rubituberculata:2n=2x=30=21m+8sm+1st;C.brevistyla:2n=2x=30=18m+10sm+2st;C.leptophyla:2n=2x=30=24m(1sat)+4sm(1sat)+2st;C.yunnanensis:2n=2x=30=18m+10sm+2st;C.pitardi:2n=2x=30=18m+12sm.其中,前7种2变种的核型为首次报道,比较前人的有关研究可以看出上述核型在种间较相似,以组为单位进行比较比种间比较具有更大的意义。  相似文献   

2.
1宜山秋海棠新种图1:3~4BegoniayishanensisKu,sp.nov.(Sect.CoelocentrumIrmsch.).Fig.1:3~4HabitusimilisB.guangxiensiC.Y.Wu,quaerhizomateb...  相似文献   

3.
1林芝蔓龙胆新种图1:1~4CrawfurdianyingchiensisK.YaoetW.L.Cheng,sp.nov.TYPE:Xizang(Tibet西藏),Nyingchi(林芝),inconiferousforest,alt.2870m,1...  相似文献   

4.
假毛柄水龙骨新种图1:1~3PolypodiodespseudolachnopusS.G.Lu,sp.nov.Fig.1:1~3Polypodiumlachnopusauct.nonWal.exHook.:Ching,Ic.Fil.Sin.2:95,...  相似文献   

5.
小兴安岭阔叶红松林凋落物产量及动态的研究   总被引:7,自引:0,他引:7  
小兴安岭阔叶红松林凋落物产量及动态的研究刘传照,李景文,潘桂兰,李传荣(东北林业大学红松研究所,黑龙江带岭153106)LitterProductionandDynamicsinBroadleavcd-KoreanPineForestsinXiaoxinganMountaiils¥LiuChuanzhao;LiJingwen;PanGuilan;LiChuanrong(InstituteofKoreanPineStudies,NortbeastForestryUniversity,Dailing,Heilongjiang153106).ChneseJournalofEcology,1993,12(6):29-33.Three-yearstudywasdoneonlitterproductionanddynamicsunderbroadleaved-KoreanpineforestsintheXiaoxinganMountains。Resultsshowedthatannuallitterfallis4.25±0.17t.ha ̄(-1).yr ̄(-1).Amongtotallitterfall,leaflit  相似文献   

6.
山茶属山茶组植物的分类,分化和分布   总被引:14,自引:3,他引:11  
山茶组Sect.Camelia植物迄今已合格发表的名称有72种,1亚种和7变种,其中Sect.Paracamelia中的威宁短柱茶C.weiningensis和Sect.Coralina中的连山离蕊茶C.lienshanensis应归属本组。经研究订正,确认该组共12种和6变种,其余名称均作为相应种、变种和变型的同物异名,文中讨论了物种的形态变异与分化,分布与替代,自然杂交等问题。  相似文献   

7.
沈阳市东陵区丘陵坡地坡面太阳直射光的分布及其分析郭林海(中国科学院沈阳应用生态研究所,110015)DistributionofDirectSolarRadiationonHillySlopesofDonglingDistrictofShenyangMunicipalityandItsAnalysis¥GuoLinhai(InstituteofAppliedEcology,AcademiaSinica,Shenyang110015).ChineseJournalofEcology,1993,12(1):59-61.Basedonthelatest1:50000topographicmap,the1:100000slopegradationmapisdrawnoutandareacalculationismade.Thedirectsolarradiationintypicalsitesofthedistrictismeasuredandcalculated,andthevariationcurvesofannualfluxofdirectsolarradiationonvariousslopedirecti  相似文献   

8.
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   

9.
温度,pH对菌根真菌生长影响的研究   总被引:10,自引:0,他引:10  
温度、pH对菌根真菌生长影响的研究韩桂云,齐玉臣,刘忱,周玉芝(中国科学院沈阳应用生态研究所,110015)EffectsofTemperatureandpHonMycorrbizalFungusGrowth¥HanGuiyun;QiYuChen;LiuChen;ZhouYuzhi(InstituteofAppliedEcology,AcademiaSinica,Shenyang110015).ChineseJournalofEcology,1993,12(1):15-19。TheeffectsoftemperatureandpHonthegrowthof19purestrainsofmycorrhizalfungiareinvestigated.TheoptimumtemperatureandpHarefoundandrelationshipsbetweenadaptablerangesoftemperatureandpHformycorrhizalfungusgrowthandtheirecologicaldistributionareindicated.Keywords:temperature,pH,  相似文献   

10.
贵州省西北部“百里杜鹃林”的土壤生态条件   总被引:6,自引:0,他引:6  
贵州省西北部“百里杜鹃林”的土壤生态条件庞纯焘,宋铭荷,田光普(贵州教育学院,贵阳550003)(贵州农学院,贵阳550006)SoilEcologicalConditionsinthe"HundredLi(500m)AzaleaForcst"inNorthwestGuizhouProvince¥PangChuntao;SongMinghe(GuizhouEducationCollege,Guiyang550003),TianGuangpu(GuizhouAgriculturalCollege,Guiyang550006).ChineseJournalofEcology,1993,12(1):49-52。Thereisavastareaofazalea(Rhododendronspp.)forestinNorthwestGuizhouProvince,Atfloweringseasoninsummer,itbecomesaregionoftouristattraction.Thisregionissofascinatingthatpeoplecallit"HundredLi(500m)AzaleaFores  相似文献   

11.
对青藏高原高山冰缘地区毛茛科3种特有植物的核型进行了分析。它们的核型公式(K)、染色体相对长度组成(C.R.L.)和核型不对称系数(As.K%)分别为:青藏金莲花Troliuspumilusvar.tanguticus:K(2n)=6m+8sm(2SAT)+2st,C.R.L.=4L+4M2+4M1+4S,As.K%=63.57,核型属2B型;甘青乌头Aconitumtanguticum为K(2n)=6m+10sm,C.R.L.=4L+8M1+4S,As.K%=62.54,2B型;单花翠雀花Delphiniumcandelabrumvar.monanthum为K(2n)=6m+8sm+2st,C.R.L.=4L+4M2+4M1+6S,As.K%=64.34,属3B型。经同相关近缘种核型资料比较,青藏金莲花核型不对称性和进化程度比金莲花T.chinensis低;甘青乌头的核型不对称性和进化程度在其近缘类群(乌头组Sect.Aconitum)已报道的种之内最低;单花翠雀花核型不对称性和进化水平比翠雀组(Sect.Delphinastrum)已报道的展毛翠雀花D.kamaoensevar.glabrescens、  相似文献   

12.
有机体之间化学相互作用的研究及其应用   总被引:3,自引:0,他引:3  
有机体之间化学相互作用的研究及其应用宋启示(中国科学院昆明生态研究所,650223)ChemicalInteractionAmongOrganismsandTheirApplication¥SongQishi(KunmingInstituteofEcolo-gy,AcademiaSinica650223).ChineseJournalofEcology,1993,12(1):45-48。Thispaperreviewsthemostactiveresearchfieldsonchemicalinteractionamongorganisms:(1)allelopa-thyamongplants,whichiswidelyappliedinagricultureandhorticulture,(2)biochemicalinteractionbe-tweenplantsandinsects,(3)biochemicalinteractionamonginsectsand(4)biochemicalinteractionamongmammalsandbetweenmammalsandplants.Inaddit  相似文献   

13.
空气污染对植物病虫害的影响吴亚,金翠霞(江苏省农科院植物保护研究所,南京210014)EffectsofAtmospbericPollutiononPlantDiseasesandPests¥WuYa;JinCuixia(InstituteofPlantPro-tection,JiangsuAcademyofAgriculturalSciences,Nanjing210014).ChineseJournalofEcology,1993,12(6):49-53.Thispapersummarizestheeffectsofmainatmosphericpollutants,suchasO_3,SO_2,fluorides,acidrainetc.onplantpathogenicmicroorganisms;theeffectsofairpollutionontheoccuranceandinfestationofphytophagusinsects,andtheinfluencesofgreenhouseeffectofCO_2ontheoutbreakofpests。Keywords:atmospheri  相似文献   

14.
改变林分结构提高松林对松毛虫的自控能力   总被引:1,自引:0,他引:1  
改变林分结构提高松林对松毛虫的自控能力周石涓,彭建文(湖南省林业科学研究所,长沙410004)ForestStructuralModificationinImprovingSelf-regulatingCapabilityofPineForestAgainstDen-drolimusPuncts¥ZhouShijuan;PengJianwen(HunanInstituteofforestryscience,Changsa410004).Chi-neseJournalofEcoloLyy,1993,12(5):9-12。Thispaperdescribesthesignificantchangesofforestbiologicalstructcure,succeedingfromsparsepurepineforesttopine-shrubmixedforestandtomulti-layerpine-broadleavedmixedforestcommunityduringthreedecadesofclosingmountainsandrearingforests。TheNaturalparasiti  相似文献   

15.
杏属二新种   总被引:3,自引:0,他引:3  
1政和杏别名:红梅杏(福建)新种图1ArmeniacazhengheensisJ.Y.ZhangetM.N.Lu,sp.nov.TYPE:China.Fujian(福建),Zhenghe(政和),Waitun(外屯),Mt.Chouling(稠岭山)...  相似文献   

16.
电脑版Wisconsin卡片分类试验(中文版)的开发研制   总被引:5,自引:0,他引:5  
Wisconsin卡片分类试验(Wisconsincardsortingtdst,WCST)是一种临床神经心理测试工具。WCST计算机化的必要性:1.传统的WCST可因不同主剂间的主观因素造成测试结果的人为差异,2.在对研究对象进行PET脑功能显像时,使用传统的WCST作为认知激活介入是不行的,电脑版WCST(中文版)的设计要求及性能指标;1.设计要求,使用简便,客观评估被试的测试结果,结果记录及  相似文献   

17.
中亚热带东部三种主要木本群落土壤呼吸的研究   总被引:104,自引:12,他引:92  
黄承才  葛滢  常杰  卢蓉  徐青山 《生态学报》1999,19(3):324-328
研究中亚热带东部青冈(Quercusglauca)常绿阔叶林、毛竹(Phylostachyspubescens)林和茶(Cameliasinensis)园土壤呼吸与土壤温度、土壤含水率的关系,建立了土壤呼吸速率与地表温度的模型,根据气象资料估算得到青冈常绿阔叶林、毛竹林、茶园的年均土壤CO2呼吸量,3种群落依次为24.12、30.77、28.55t/hm2·a,进一步估算出浙江省常绿阔叶林、毛竹林和茶园每年土壤CO2排放量,分别为9.27×106、1.36×107、7.16×106t/a  相似文献   

18.
Celluloseisthemostabundantnaturalbiopolymer.Howtoutilizeorhydrolyseitisaveryimportantprob-leminthefieldofbiotechnology.Sixstrains(JT)ofthermophilicanaerobicandcellulyticbacteriawereiso-latedfromcamelfeces,compost,soilandhotspringwa-terinJapan.Thesest…  相似文献   

19.
道路农田防护林系统水分关系研究   总被引:4,自引:0,他引:4  
道路农田防护林系统水分关系研究任勇,王佑民(北京林业大学,100083)(西北林学院,陕西杨陵712100)WatcrRelationsinFarmlandShelterbeltSystembytheRoads.RenYong¥(BeijinigForeslryUziuersity,100083),WangYoumin(NorthwesternCollegeofForestry,Yangling,Shaanxi,712100).ChineseJournalofEcology,1993,12(4):l-6.IntheregionfromloessplateautoNorthWeiRiver,20-100cmsoillaveristhemainlaverfromwhichtherootsystemofP.×dakuanensisHsuabsorbswater,and0-0.1HistherangeinwhichP.×dakua-nensisbytheroadsstronglyaffdctsbytheroadsstronglyaffectsmoistureconditionoffarmland.Theannual  相似文献   

20.
我国海洋浮游幼虫的生态研究展望   总被引:2,自引:0,他引:2  
郑重 《生态学杂志》1993,12(1):35-36
我国海洋浮游幼虫的生态研究展望郑重(厦门大学海洋系,361005)EcologicalResearchProspectiveofMarinePlanktonicLarvainChina¥ZhengZhong(DepartmentofOceanography,XiamenUniversity,361005).ChineseJournalofEcology,1993,12(1):35-36。ThispaperdealswiththeprospectiveofecologicalresearchonmarineplanktoniclarvainChina,andcon-sistsofthefollowingthreeparts:naturalecology,experimentalecologyandappliedecology.Ineachpartabriefaccountoffutureresearchproblemsisgiven.Theauthorisoftheopinionthatmarineecosys-temshouldbethefocusoffutureresearch,inordertomake  相似文献   

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