母树林供长期地采集品质优良的林木种子之用。因此,在母树林内需要进行提高种子产量和缩短种子年间隔期的综合措施。这些措施主要是:加强母树光照条件,使母树树冠庞大和提高土壤肥力。可以在天然林里划定母树林,也可以在人工林里划定;或者以具有优良遗传特性的种子营造新的母 Mother trees for long-term collection of high-quality forest seed purposes. Therefore, there is a need for integrated measures to increase seed production and shorten the annual interval of seed within the parent tree. These measures are mainly: to strengthen the parent tree light conditions, so that the parent tree canopy and improve soil fertility. Mother forests can be demarcated in natural forests and demarcated in plantations, or new seeds can be created with seeds of superior genetic traits