日本落叶松无性系引种试验林研究初报

为选择冀北山地培育速生丰产林种质资源,从辽宁宽甸县引进日本落叶松无性系4个品系在茅荆坝林场栽植试验林。结果表明,生长量明显高于乡土树种-华北落叶松,10 a生林木进入速生期,是对比树种的1.5倍以上,适应当地自然环境条件。

The study on introduction experiment of Japanese larch clones

The germplasm resources which grow fast and fruitful were selected for cultivation in the mountainous area of north Hebei.Four stains of Japanese larch clones introduced from Kuandian county in Liaoning province were planted in Maojingba forest farms as experimental trees.The result indicated that the growth quality of the clones which were 1.5 times as large as the control trees was higher obviously than local trees after 10 years.They would be in fast-growing age,and the trees adapted to the local environment greatly.