落叶松生长快,寿命长,材质好,用途广,是优良的用材树种。为了加快绿化步伐,丰富秦岭山区的造林树种,我们从1970年起,先后从山西、东北等地引进华北落叶松、长白落叶松,进行了育苗试验。几年来,我们认真贯彻“农业八字宪法”,实行科 Larix grow fast, long life, good material, wide use, is an excellent timber species. In order to speed up the pace of afforestation and enrich afforestation species in the Qinling Mountains, we have introduced Larix principis-rupprechtii and Larix principis-rupprechtii from Shanxi and Northeast China successively in 1970 and conducted nursery experiments. In the past few years, we conscientiously implemented the “Character Eight Act” and put it into practice