为了满足大面积造林对种子数量和质量的要求,摆脱林木种子因大小年对林业生产的影响,将大年中数量多、质量好的种子采集贮藏起来,以丰补欠,并贮存一定数量的优良品种和珍贵树种,以适应林业现代化生产需要。1980年林业部在九省市同时兴建林木种子低温库九座,耗资一千多万元,目前均巳建成。如何使用好这些冷库,也就是说,在生产实践所要求的贮藏期限之内,怎样用最低成本,最大 In order to meet the requirements of large-area afforestation on the quantity and quality of seeds, and to get rid of the impact of tree seed on the forestry production due to the size year, the large number of seeds of good quality should be collected and stored in order to cover the deficiencies and store a certain amount of Fine varieties and precious tree species, in order to meet the needs of modern forestry production. In 1980, the Ministry of Forestry set up nine low-temperature tree seed banks in nine provinces and cities at the same time, costing more than 10 million yuan and they have been completed at present. How to make good use of these refrigerators, that is to say, how to use the lowest cost within the storage period required by the production practice