贵州高寒山区华山松Pinus armandii Franch育苗试验

华山松是贵州高寒地区(当地)主要造林用树种,在退耕还林、还草工程和宜林荒山造林中,也是西部地区作为首选树种之一,但华山松常规育苗需要一年才能育成。本育苗试验采用"百日苗"育苗法可缩短育苗时间,经2009~2012年重复试验,100 d内苗高10 cm以上,地径0.2 cm以上,大大提高了综合效益,在高寒山区具有一定的实用性。

Breeding Experiment for Pinus armandii Franch in Areas of Alpine Mountain in Guizhou

Pinus armandii Franch is a main species for afforestation in Guizhou alpine mountains and became a preferred species for the project of returning cultivated land to forest and grassland and planting trees on barren mountains in regions of West China. However,it usually takes one year to breed Pinus armandii Franch in a traditional way. The experiment adopted a 100-day seedling method which could shorten the breeding period. The 100-day seedlings could grow more than 10 centimeters in height and over 0. 2 centimeter in diameter in the repeated experiments ranging from 2009 to 2012,which greatly improved the comprehensive benefits and could have pragmatic application in areas of alpine mountain.