【摘要】 为了更好地掌握黑龙江省东南部林区啮齿动物对农林的危害程度,为林业部门预防鼠害提供科学依据,于2008年3月─2011年2月进行实地调查。结果表明,黑龙江东部地区比中部地区危害大,用材林比经济林大,幼龄林比中龄林大,尤其当年新植的幼苗危害更严重。用材林啃伤率平均为2.09%,死亡率为1.25%;经济林啃伤率平均为0.78%,死亡率为0.29%;幼龄林啃伤率平均为4.01%,死亡率为5.22%。更多还原

【Abstract】 In order to master the damage level of rodent does to the agriculture and forestry in the Southeast forest areas in Heilongjiang province and provide scientific evidence for preventing rodent pest for the department of forest, investigated on the spot from March ,2008 to January 2011. The results showed that the damage in the east of Heilongjiang was more serious than that of the southeast , more damage to commercial forest than economic forest , more damage to young forest than half-mature forest , especially seedling planted in the very year. On average the eating rate of commercial forests was 2.09%; the death rate was 1.25% ; the eating rate of economic forests was 0.78% ; the death rate was 0.29% .The average eating rate of young forests was 4.01% and the death rate was 5.22%.更多还原