日本落叶松(Ldrix Lerptolepis)具有速生、优质、抗病和适应性强等特性,为了在本区增加新树种,以良种代替劣种提高生产力;扩大栽培范围。川西林区于1970年从辽宁引进日本落叶松种子,育苗后在1973—1974年分别栽植于塔干和鹿角沟,现已郁闭成林。我们在鹿角沟日本落叶人工幼林内进行生物量测定。 Ldrix Lerptolepis has the characteristics of fast growing, high quality, disease resistance and adaptability. In order to increase new species in this area, substituting inferior species with improved varieties will increase productivity and expand cultivation range. In 1970, Chuanxiu Forest introduced Japanese larch seeds from Liaoning. After breeding, it was planted in Tadan and Lujigou from 1973 to 1974 respectively. We measured biomass in young deciduous forests in Antler Ditch.