桉树无性系抗风对比试验

在闽东南沿海山地开展9224、赤桉2号、M1和新U6(对照)等4个桉树无性系抗风对比试验,结果表明:参试无性系间的生长量、风害率、保存率等性状均存在极显著的差异。生长量以9224和M1为最高;林分保存率以9224和赤桉2号为最高;抗风性以赤桉2号和9224为最强。综合适应性、抗风性和速生性分析,初步认为9224是速生抗风优良无性系;赤桉2号虽然生长量较其它无性系低,但也达到福建省桉树适宜产区Ⅲ类地的速丰林标准,抗风性强,在闽东南沿海低海拔台风多发地段种植具有发展前景。

Contrast Test of Wind-Resistance of Eucalyptus Clones

A contrast test was conducted on 4 clones of wind-resistance Eucalyptus such as 9224,Eucalyptus camaldulensis №2,M1 in the east of Fujian and U6 was taken as a comparison.The results showed that the difference of growth,wind damage percentage and preservation rate among the 4 clones was significant. The growth of 9224 and M1 was highest,the realistic stand preservation rate of 9224 and Eucalyptus camaldulensis №2 was highest,the wind-resistance of Eucalyptus camaldulensis №2 and 9224 was strongest, they all excelled the comparison on the whole.On the comprehensive analysis of adaptability,fast-growth and wind-resistance,9224 was elementary considered as a excellent clone with fast-growth and wind-resistance;although the growth of Eucalyptus camaldulensis № was lower than other clones,it also reached the standard of instant forest in Fujian Eucalypt suitable producing area that the soil type was grade Ⅲ,so it had prospect to plant at the coastal low-altitude section with frequent typhoon in Southeast Area of Fujian Province.