filling

This paper studies on the compensation reaction of Northern China s Larch after being damaged by Casebearer,and finds that during final growth the weight of fresh leaves was the lowest in the seriously damaged district,in the moderately damage district,the weight was almost equal to the contrast district,according to the result,the length of leaves was negatively correlated to the damaged degree.

对华北落叶松受鞘蛾危害后补偿反应的进行研究,发现在生长后期,严重受害区百束针叶鲜重最小,而中等受害区与对照区几乎相等,结果表明针叶长度与受害强度成负相关。