【摘要】 １９９５年，从澳大利亚引进史密斯桉主要分布区的７个种源，以云南省大部分地区生长表现较好的蓝桉、直干桉作对照，在云南省的东部、东南部、南部、中部和西部共设５个试验点进行多点引种和种源适应性的试验。经对５个试验点苗期及２５年生试验林适应性和生长表现的观测、分析，史密斯桉在试验点所示的区域内比较适生，尤其在滇东的陆良、滇中的禄丰、滇西的保山表现较好；引种的７个种源，以１５０６４、１８２８４和１８６８８号初期生长较好。初步确定了该树种引种的适生范围，并对各种源在各试验点上的苗期和幼树期的生长规律和差异有所了解。据测定，史密斯桉的桉叶出油率为１４２％，比蓝桉高１倍，比直干桉高１１２倍；桉油中的桉叶素含量比两个对照高出１８％。更多还原

【Abstract】 In 1995,from Australia,seven E.smithii provenance were introduced to 5 experimental sites in Yunnan to be carried out introduction and provenance test.These 5 experimental sites were located in east,southeast,south,central and west parts of Yunnan province respectively. E.globulus and E.maideni, which could grow well in most areas of Yunnan,were selected as the controls.Through observation and analysis on adaptability and growth of the introduced E. smithii in seedling stage and test plantation of 25 years old,the results indicated that E.smithii could grow well in the experimental sites,especially in Luliang county in south of Yunnan,Lufeng county in central of Yunnan and Baoshan city in west of Yunnan.Among the 7 provenance,3 of them with the codes of 15064,18284 and 18688 could grow well in early stage of growth.This test made the normal scope of E. smithii in Yunnan clear,and also gained some understand on the growth of seedling and juvenile stage of the 7 introduced E. smithii provenance in different experimental sites of Yunnan.In accordance with the relevant determination results,the eucalyptus oil ratio of E. smithii was 142%,that was 2 times and 212 times as high as that of TBXE.globulus and E.maideni respectively.The eucalyptol content was higher than the two controls by 18%.更多还原