我省杉木良种基地建设自七十年代中后期开始,经过十多年的努力,现已初见成效。至1986年止结实面积达286.8公顷,总产量为31855公斤。从1984年开始,种子园生产的良种已基本能满足国营造林、基地造林的需要。但存在着产量低、成本高等问题。为了总结经验,寻找原因,现对10个杉木种子园影响种子产量的因素进行分析如 Since the mid-and late-1970s, the construction of Cunninghamia lanceolata improved seed base in our province has achieved initial success after more than 10 years of hard work. Until 1986, the area of ​​286.8 hectares of solid, with a total output of 31855 kilograms. Since 1984, seedbeds produced by seed orchards have basically met the needs of state-owned afforestation and base afforestation. However, there are problems of low output and high cost. In order to sum up the experience, looking for the reasons, the impact of 10 fir seed orchard seed yield factors are analyzed