为了更好的掌握黑龙江省东南部林区啮齿动物种类、构成与分布，为林业部门预防鼠害提供科学依据，也为啮齿动物研究提供基础生物学资料，于2007年3月~2011年2月通过实地调查，利用夹日法结合以前采集到的标本以及对文献进行综合整理.结果表明：黑龙江东南部林区共有啮齿动物21种，隶属3目8科16属，占黑龙江省啮齿动物的70%，其中古北界17种(占80.95%)，广布种4种(占19.05%)，在动物区系组成上以古北界为主，在捕获的数量上看棕背鼠平(Clethrionomys ruf ocanus)为优势种.鼠类的密度与林龄有密切关系，林龄较长的林地鼠类密度较低，居民点的密度大于林地.不同种类的鼠的分布也与林型有关% In order to master the variety ,composition and distribution of the southeast forestry of Hei-longjiang Province ,to provide scientific evidence for preventing rat pest and provide general biology mate -rials for rodent research ,from March ,2007 to February ,2011 we made use of clip day method ,combi-ning previously gathered samples with sorting out the relevant documents .The finding shows that there are 21 kinds of rodents ,belonging to 3 orders 8 families 16 categories and accounting for 70% of Hei-longjiang rodent ,of which there are 17 kinds of palearctic realm (accounting for 80 .95% ) ,4 kinds of dispersed species (accounting for 19 .05% ) .In the composition of animal fauna palearctic realm is domi-nant ,while Clethrionomys ruf ocanus is dominant species according to the captured number .The density of rodent is closely connected to the age of forest ,that is the density of woodland rats which have long lived in the forest is low and the density of residential areas is larger than that of woodland .The distribu-tion of different kinds of rats is closely connected to the forest type .
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