无性系种子园是专为人工选择的无性系或家系设置的,以生产大批遗传品质优良林木种子的林地.它是林木良种繁育的一种主要形式,可使选育、繁殖和推广三项工作有机结合,产生明显的遗传改良效果和社会经济效益.新疆落叶松(Larix sibirica Le-deb)是新疆主要用材树种之一,它生长快,材质好,分布广,生态适应性强,建立其无性系种子园,对于提高其林木生产率和发展新疆山区林业有着重要的意义. Clonal Seed Orchards are designed for artificially selected clones or families to produce large quantities of forest land with superior genetic quality of tree seeds, which is a major form of tree seed breeding that allows breeding, propagation and promotion of three tasks Organic combination, resulting in significant genetic improvement and socio-economic benefits.Larix sibirica Le-deb Xinjiang is one of the main timber species, it grows fast, good material, wide distribution, ecological adaptability, the establishment of asexual Department of seed orchard, for improving its forest productivity and the development of mountain forestry in Xinjiang has important significance.