森林植物群落多样性与虫害自然控制力的研究进展

讨论了森林植物群落多样性与森林虫害自然控制力间的关系,阐明了森林虫害自然控制力有随森林植物群落多样性的升高而增强的趋势.并认为森林虫害自然控制力的本质是森林植物群落多样性的生态系统功能.初步提出了通过合理地提高森林植物群落多样性来提高森林虫害自然控制力的主张及提高森林虫害自然控制力的几种具体途径,即合理的乔木物种混交;引进和保留乡土的草本、灌木物种;提高生态系统水平的生物多样性;避免营造大面积的人工纯林.

Discussion on Relationship between Forest Biodiversity and Forest Pest Natural Control Capacity

The relationship between forest plant diversity and forest pest natural control capacity is discussed,and results demonstrate that forest pest natural control capacity increases with forest plant diversity.Forest pest natural control capacity is considered to be ecosystem function of forest plant diversity.Meanwhile, it is proposed that the forest pest natural control capacity shoud be increased by properly increasing forest biodiversity and the feasible approches to increasing forest pest natural control capacity are also given.That is,to use proper tree mixture technology ,to increase biodiversity at ecosystem level,and to avoid planting a large areas of pure plantations with geneticlly monogeneous plant populations.The results will provide theorical basis for forest pest population management.