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作 者:武晓东[1,2] 邹元平 郝玉山 曹润波 孟祥玉 孙添
机构地区:[1]内蒙古农牧学院草原科学系 [2]内蒙古大兴安岭林管局森防站
出 处:《内蒙古农牧学院学报》1999年第2期18-23,共6页
摘 要:1991年6~9月在内蒙古大安岭吉文林区共设置27块野外样地,对该地区的啮齿类区系进行了调查,1992年10月到1993年5月选择野外样地4块对鼠类危害进行了调查,结果发现当地啮齿动物共有2目6科12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。当地干旱阳坡樟子松15a以下林木受害鼠危害最为严重,其被害率高达30%,幼林地和新植林地受害鼠危害也较严重,被害率达20%。The 27 plots were selected and rodent fauna was investigated on the Jiwer forest region in Daxingan Mountains from June to September in 1991. From Oct, in 1992 to May, in 1993 the rodent harm was investigated on the 4 plots selected, the results showed there were 2 order, 6 family, 12 speecies. The rodent density was related to tree age. There were lower rodent density on the forest land of with longer tree age, Below 15 years of Pinus sylvestris var. mongolica below 15 years was mostly harmed on the dry south of hill in the region and harmed tree rate was 30%, the rodent harm was more serious in the yong forest and new planting tree and the harmed tree rate was 20%.
分 类 号:S764.3[农业科学—森林保护学]
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