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病虫鼠危害对森林的影响有生态影响、经济影响和社会影响三方面。测算表明,祁连山自然保护区当前发生危害的主要森林病虫鼠危害每年造成的直接经济损失分别为青海云杉种实害虫(1 826.4元/hm2)、青海云杉叶部病虫(913.5元/hm2)、青海云杉嫩梢病虫(887.4元/hm2)、幼林地中华鼢鼠(810元/hm2)、青海云杉蛀干害虫(476.16元/hm2)、落叶松球蚜(202.5元/hm2)、阔叶树叶部病虫(112.5元/hm2),主要森林病虫鼠害直接经济损失年均达2 395.86万元。
Pest and pest harm to the forest has ecological impact, economic impact and social impact. The calculation shows that the direct economic losses caused by the harm of the main forest pests in the Qilian Mountains nature reserve are as follows: the pests of the seedlings of Picea crassifolia (1826.4 yuan / hm2) and the leaves and pests of the leaves of Picea crassifolia (913.5 yuan / hm2), young shoots and spiders (887.4 yuan / hm2) in young spruce, young Chinese wallaby (810 yuan / hm2) in young forests, pests of spores of Qinghai spruce (476.16 yuan / hm2) hm2), broad-leaved tree leaf pests (112.5 yuan / hm2), and the direct economic losses of major forest pests and diseases were 23,958,600 yuan annually.