【摘要】 病虫草鼠等有害生物种群在变动的环境下较易突增而酿成生物灾害,从而给生态系统造成危害和引起生态系统服务的退化。评估生物灾害对生态系统的影响有利于明确有害生物对生态系统造成的损失,有利于揭示生态系统所面临的有害生物胁迫问题。目前有关有害生物对生态系统危害损失的评估方法主要是直接经济损失评估方法与生态服务功能价值评估方法。基于生态能学构建了虫鼠等有害生物对草地和森林生态系统生物量危害损失的定量评估方法。更多还原

【Abstract】 Population of pests such as diseases, insects, weeds and rodents, are apt to outburst and lead to biological disasters in changing environment, which can cause damage of ecosystem and degradation of ecosystem services. The evaluation of biological disasters was helpful to find the loss of ecosystems caused by pests and to reveal the problem of pest stress on the ecosystem. At present, the evaluation methods of loss of ecosystem caused by pests often used the evaluation of direct economic loss and the evaluation of ecosystem service value loss. In this paper, the quantitative evaluation methods of biomass loss caused by insects and rodents on grassland and forest ecosystems were established on the basis of ecological energy.更多还原