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时间:2018-04-15
《中国野生桂花的地理分布和种群特征》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、园艺学报,2015,42(9):1760–1770.ActaHorticulturaeSinica1760doi:10.16420/j.issn.0513-353x.2014-0939;http://www.ahs.ac.cn中国野生桂花的地理分布和种群特征1,*23赵宏波,郝日明,胡绍庆123(浙江农林大学风景园林与建筑学院,浙江临安311300;南京农业大学园艺学院,南京210095;浙江理工大学建筑工程学院,杭州310018)摘要:桂花(OsmanthusfragransLour.)野生资源有非常丰富的性状和遗传变异,但目前被过度开发、破坏,导致分布范
2、围急剧缩小,种群规模和数量锐减,生境片断化严重。以往的文献认为桂花起源于喜马拉雅山脉东段,即中国的西南地区;然而随着野生种群在湖南、浙江和福建等地被陆续发现,关于桂花自然分布的问题需要重新审视。作者在大量野外调研的基础上,结合前人研究结果,对桂花的自然分布和种群特征等进行了总结和概括,分析了野生资源与品种起源的关系,以期为桂花野生资源的有效保护和高效利用提供参考。关键词:桂花;地理分布;种群特征;品种起源;保护;利用中图分类号:S685.13文献标志码:A文章编号:0513-353X(2015)09-1760-11GeographicDistribution
3、andPopulationCharacteristicsofOsmanthusfragrans1,*23ZHAOHong-bo,HAORi-ming,andHUShao-qing1(DepartmentofOrnamentalHorticulture,SchoolofLandscapeArchitecture,ZhejiangAgricultureandForestry2University,Lin’an,Hangzhou311300,China;CollegeofHorticulture,NanjingAgriculturalUniversity,Nanj
4、ing210095,3China;CollegeofCivilEngineeringandArchitecture,ZhejiangSci-TechUniversity,Hangzhou310018,China)Abstract:WildgermplasmofOsmanthusfragransLour.haverichmorphologicandgeneticvariations.However,duetoexcessiveexplorationandutilizationinrecentdecades,thedistributionrange,sizean
5、dnumberofnaturalpopulationsdecreasedrapidly,andthehabitatsfragmentedseriously.Accordingtosomepreviousreferences,O.fragransoriginatedfromtheeastoftheHimalayasi.e.theSoutheastofChinaincludingSichuan,YunnanandGuizhouprovinces.However,alongwiththediscoveryofnaturalpopulationssuccessive
6、lyinHunan,FujianandZhejiangprovinces,thenaturaldistributionofthisspeciesneedtobere-considered.Inthispaper,combiningamountoffieldinvestigationdiscoveriesandpreviousreferences,thenaturalgeographicdistributionandpopulationcharacteristicsweresummarizedandraised,andtherelationshipbetwee
7、ntheoriginofcultivarsandwildgermplasmwasdiscussed.Thesewillprovideareferencefortheprotectionandutilizationofnaturalpopulations.Keywords:Osmanthusfragrans;geographicdistribution;populationcharacteristic;cultivarorigin;protection;utilization收稿日期:2015–07–30;修回日期:2015–09–06基金项目:国家自然科学基
8、金项目(31170656,31400598,3150
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