一、种子园。种子园是用优树或优良无性 系的种条育苗合理配置营造的以生产种子为目的的人工林。由于种子园采取隔离和比较集约的经营措施,可以避免或减少外源传粉,因而能够生产经过改良遗传较为稳定的林木种子,供应造林更新。所以,种子园是林木优良种子的生产基地。而营建种子园是实现林木良种化重要环节之一。 First, the seed garden. The seed orchard is a plantation for the purpose of producing seeds, which is created by the rational allocation of seedlings of elite trees or excellent clones. Due to the isolation and intensive management measures of seed orchards, exogenous pollination can be avoided or reduced, so seedlings with improved and more stable genetic inheritance can be produced for afforestation renewal. Therefore, the seed orchard is a forest seed production base. The construction of seed orchard is to achieve one of the important aspects of forest tree planting.