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Study of growth and resistance to damage caused by Anoplophora glabripennis in mixed forest of Ailanthus altissima and Populus bolleana

Yang Junlong1,Song Lihua1,Jiang Wan2,Cao Bing1,Jiang Quanxiong1(1.School of Agriculture,Ningxia University,Yinchuan 750021,China;2.Experimental Farm of Ningxia University,Yongning 750105,China)  
Different mixed forest models of Ailanthus altissima and Populus bolleana were surveyed,and then the DBH,height,volume and the Anoplophora glabripennis' damage to Ailanthus altissima and Populus bolleana were comparably analyzed.It was concluded that the growth quantities of the two tree species were decreased in all mixed forest stands,of which,the growth of the mixed model of the 1∶1(the proportion of individual quantities for Populus bolleana and Ailanthus altissima) was lowest,but the damage rate caused by Anoplophora glabripennis for the 2∶3 model was lowest.
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