修改(11)刘刚千层塔的濒危机制研究

学号：071241250本科生毕业论文千层塔的濒危机制和保护对策院系：生物科学与技术学院专业：生物科学学生姓名：刘刚指导老师：武芸中国·恩施二〇一六年五月IStudentID:071241250BACHELOR'STHESISOFHUBEIUNIVERSITYFORNATIONALTIESStudiesontheEndangermentMechanismandconservationstrategiesforHuperziaserrataDepartment:CollegeofBiologicalScienceandTechnologyMajor:BioscienceStu-Name:LiuGangAdviser:WuYunEnshiChinaMay,2016II论文诚信声明本人郑重声明：本人所呈交的学位论文《千层塔的濒危机制研究》，系本人在指导教师指导下，独立进行研究工作所取得的研究成果。除文中已经标明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研究成果。对本文的研究做出过贡献的个人和集体，均已在文中以明确的方式说明。本声明的法律后果由本人承担。声明人签名：刘刚2016年5月20日III摘要本文将分别从千层塔的生物学特征及自然生境(包括千层塔的生物学特征、地理分布和形态特征)和繁殖特征（千层塔的孢子繁殖、人工繁殖），系统探究了千层塔的致濒机制，提出了相应的解危措施和保护对策,包括就地保护、迁地保护、建立基因库等措施，为保护、合理开发和利用千层塔的自然资源具有重要理论意义。关键词：千层塔；濒危机制；保护IVAbstractThispaperstudiedthebiologicalandnaturalaspectsofHuperziaserrata,includingbiologicalcharacteristics,geographicaldistributionandmorphologicalfe-ature.Propagationbiologywasalsostudied,includingsporogenesis,artificialprop-agation.Thethreateningfactorshavebeenanalyzedandsomemeasureshaveals-obeenproposedtocurbandharnessthisurgentproblemthatHuperziaserrata’sresourceisbecomingexhausted,includinginsituconservation,exsituconser-vation,settingupgenomeresourcebanketal.Inordertoprotect,developandu-tilizethenaturalresourcesofHuperziaserrataareofgreattheoretical.Keywords:Huperziaserrata,Endangeredmechanism,ConservationV目录论文诚信声明.........................................................................................................................II摘要..............................................................................................................................................IIIAbstract......................................................................................................................................IV1引言........................................................................................................................................11.1研究背景........................................................................................................11.2千层塔的研究进展........................................................................................31.2.1千层塔的药用价值研究.......................................................................31.2.2千层塔的繁殖技术研究.......................................................................31.3研究目的和意义............................................................................................31.3.1研究目的...............................................................................................31.3.2研究意义...............................................................................................22千层塔的生物学特征及自然环境........................................................................32.1千层塔的生物学特征....................................................................................32.2千层塔的地理分布........................................................................................42.3千层塔的形态特征........................................................................................43千层塔的繁殖特征........................................................................................................53.1千层塔的孢子繁殖过程................................................................................53.2千层塔的人工繁殖技术................................................................................54千层塔的濒危机制和保护对策..............................................................................64.1濒危植物保护生物学基本概念....................................................................64.1.1物种濒危等级的划分...........................................................................7VI4.1.2我国的濒危物种等级划分标准...........................................................74.1.3濒危植物的濒危机制分析..................................................................84.2导致千层塔濒危的因素................................................................................84.2.1千层塔的繁殖学特征与其濒危机制的关系......................................84.2.2千层塔的生态学特征与其濒危机制的关系......................................94.2.3自然灾害与千层塔濒危的关系..........................................................94.2.4人类活动与千层塔濒危机..................................................................94.3千层塔的保护对策......................................................................................104.3.1就地保护............................................................................................104.3.2迁地保护.............................................................................................114.3.3完善濒危植物保护的相关法律制度和强化执行力度.....................114.3.4加强公众对濒危植物保护意识的宣传和教育.................................114.3.5离体保存基因库的建立....................................................................124.3.6加强对千层塔人工繁殖的探索........................................................124.3.7加强对千层塔的科学研究................................................................124.3.8强化保护力度....................................................................................125结论与展望......................................................................................................................136参考文献................................................................