The average population density is above 118 in the forest stand that robur can account for 90% , and 50 in a forest stand that robur account for 40% . 虫口密度与林分组成的关系为栎树纯林和栎树比例在9以上的林分平均虫口在118头／株以上,危害重;而栎树比例在4以下的林分平均虫口在50头／株以上,危害轻。
The 31-year-old Loria had the best season of his career last season with the Robur, and over the past week or so it had seemed almost certain that he would be joining Roma. 31岁的洛利亚在刚刚过去的赛季里找到了自己的最佳状态，过去几周时间里有消息说他几乎铁定会加盟罗马。
