【摘要】 从沙地云杉食叶害虫优化管理出发 ,在植物与害虫相互作用的生态系统中 ,通过人工模拟摘叶实验研究 ,结果表明 ,沙地云杉幼树在一定失叶率的条件下存在补偿和超补偿效应 ,进而以沙地云杉宏观生长指标组建了一组不同生长指标的补偿与超补偿效应模型 ,同时寻求了相应的补偿点与超补偿点 .更多还原

【Abstract】 In order to optimizationally control the defoliating insects in Picea mongolica forest, an artificially simulative defoliation experiment was carried out to study the interaction between plants and insects in the ecosystem. The results show that under certain defoliation rate, the seedlings of P.mongolica had the effects of compensation and overcompensation. The models of the effects were established based on a group of different macroscopic growth index, and correspondingly, the points of compensation and overcompensation were obtained.更多还原