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1 塞罕坝现有未造林地块状况塞罕坝现有未造林荒山立地条件很差且不足 2万hm2,另有迹地更新地块由于重茬、自然灾害等原因,使造林保存率均较低,每年需要大量的补植,应用“备补苗”技术后,每年的补植比常规的裸根苗补植和营养杯苗补植节省了大量的资金、人力和育苗占地。2 备
1 Status of existing non-afforestation land in Saihanba Existing non-afforestation land in Saihanba is in a poor condition with an area of less than 20,000 hm2. In addition, there are other land reclamation sites that have low preservation rates because of continuous cropping and natural disasters , Require a lot of replanting every year, the application of “spare seedling” technology, the annual replantation than the conventional bare root seedling replanting and nutrition cup to save a lot of money, manpower and nursery area. 2 prepared