１．研究对象的确定 为了对受光肩星天牛危害的林木进行改造，使砍伐迹地得以迅速恢复，包头市九原区全巴图林场选取受光肩星天牛危害严重的杂交杨林地３０亩，用砍伐后的伐根做砧木进行毛白杨嫁接试验。因为成活后的毛白杨生长主要依靠自生根，所以毛白杨与杂交杨的亲合力影响 1. The research object to determine In order to Harm Shouldered Beetle endangered by the transformation of the trees, so that deforestation can be quickly restored, Baotou City, Jiutuan District, all the Batu forest field selection Shouldered Anthus devastated hybrid Yang Lin to 30 acres of land, Poplar grafting test. Because the survival of Populus tomentosa mainly depends on the growth of self-root, so poplar and hybrid poplar affinity