为了培育良种,促进林木速生丰产,世界上一些林业先进国家,比较重视林木种子园的建设。我国从六十年代开始,也着手在南、北方林区建设林木种子园,特别是无性系种子园。近年来又有了新的发展,并取得了较为明显的效果。无性系种子园具有结实早、种子品质优良,集约经营,科学管理、生产基地 In order to cultivate seed varieties and promote the fast-growing trees, some advanced forestry countries in the world pay more attention to the construction of tree seed orchards. Since the 1960s, our country has also embarked on building forestry seed orchards, especially clonal seed orchards, in the forests of the south and the north. In recent years, new developments have been made and more obvious results have been achieved. Clonal Seed Garden has strong early, good seed quality, intensive management, scientific management, production base