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机构地区:[1]福建林业职业技术学院
出 处:《华东昆虫学报》2006年第2期148-151,共4页Entomological Journal of East China
摘 要:采用均匀分布、典型整群抽样调查法对福建省南平市延平区毛竹林毛竹害螨为害进行调查。结果表明,毛竹害螨为害对毛竹竹杆重量和出笋量都有一定的影响,使得竹林蓄积量下降,出笋量大大下降。建立了毛竹害螨对毛竹竹杆重量和出笋量损失的估测模型,并以此推导出了相应的经济危害允许水平和防治指标。The methods of even distribution and typical sampling survey of whole group were introduced to investigate the damage to bamboo (Phyllostachys heterocycla cv. Pubescens) due to mites in Nan-ping, Fujian. Resuits indicated that these damages might seriously reduce the weight of bamboo pole and the production capacity of bamboo shoot. So, the prediction models were built up to estimate the damage due to mites. And that the economic damage threshold and the control criterion of mites were also dedicated in this paper.
分 类 号:S763.7[农业科学—森林保护学]
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