掌叶木异地引种保护研究  

STUDY ON THE INTRODUCTION AND PRESERVATION OF HANDELIODENDRON BODINIERI(LEVL.) REHD WEI IN ALLOPATRY

作　　者：张著林[1] 林昌虎[2] 

机构地区：[1]贵州省植物园,贵州贵阳550004 [2]贵州科学院,贵州贵阳550001

出　　处：《贵州科学》2006年第4期45-48,共4页Guizhou Science

摘　　要：掌叶木生长在广西西北部、贵州南部,是残遗于我国石灰岩地区的单种属特有树种之一。由于人为影响,生存环境遭到严重破坏,加之种子易受动物啃食,天然下种能力弱,其种群数量急剧减少,已成为国家一级重点保护植物。目前对该植物进行异地保护工作较少。为此,我们开展了此项工作。结果:(1)引种地纬度向北推进了约1°,虽气温、日照、降雨等均不及原产地,但掌叶木仍能正常生长发育。如果纬度再向北推进,引种地冬季温度过低,且时间较长,引种成功的可能性就会减小。(2)采用砂页岩发育的土壤栽培,土壤条件与原产地有一定差异,掌叶木仍长势很好,说明栽培技术的改善,有可能促进了该植物生长的提高和发育的提前。但是否改变了该植物对钙的本质需求,还有待进一步地研究。Handeliodendron bodinied （ Levi. ） Rehd Wei grows in the northwest of Guangxi and south of Guizhou. It＇ s One of the special autogenus in limestone areas . Influnced by people, its living environment is damaged heavily. The seed is easy to be eaten by animals and not easy to grow in nature. So the population reduced. It became the firatlevel preservation plants of our country. Few works have been done for the preservation of the plants in allopatry. So we have carried out the study work. The results are ： （ 1 ） The plantation latiude is put 1 ° northward than before. Although temperature, sunshine and rainfall etc are not as good as the ones in provenance, the Handeliodendron bodinieri （ Levi. ） Rehd Wei in allopatry can grow normally. If the introduction is put farther northward Whether the temperature in winter is too low and the duration is longer, the success posibility of the introduction will be decreased. （2）When sand soil is used for cultivation,which condition is different from the origin,the plant still grow well. This shows that the better cultivation technique will promote the growth and development of the plant. Whether or not the introduction condition changed the plant for the requirement of calciam, further investigation is needed.

关 键 词：掌叶木 异地 栽培 

分 类 号：S322.3[农业科学—作物遗传育种]