种子林(园)除应加强水肥管理外,还必须加强整形修剪、矮化树冠等树体管理,借以改善树冠结构,调节母树营养和结实状况。否则任其自然生长,将会造成树形混乱,通风透光不良,有碍着花结实。目前,在国内有关这方面报道不多,尚无成功经验,在国外虽有些报道,但亦无成熟标准可供遵循。为此我们在种子林经营管理过程中,对移植后4—5年,树令8—20 Seed forest (garden) In addition to strengthening the management of water and fertilizer, it is also necessary to strengthen tree management such as plastic pruning and dwarf canopy so as to improve the canopy structure and regulate the nutrition and solidity of the parent tree. Otherwise let it grow naturally, will result in tree chaos, poor ventilation, hinder the flowers strong. At present, there are not many reports on this aspect in the Mainland and no successful experience yet. Although some reports have been made abroad, there are no mature standards to follow. To this end we are in the management of the seed forest management process, 4-5 years after transplantation, tree order 8-20