Through field investigation during Mar. 2009 to Dec. 2010, combining data provided by forestry department, the relationship between rodent community structure and damaged wood varieties in Mudanfeng Nature Reserve was studied. The results showed that 13 species rodent are recorded, belonging to 2 orders, 4 families, 11 genera; damage degree of woods depend on the density of rodent population. Softwood is damaged badly, accounting for 87% of the damaged trees. The extent of damage from serious level to light level is Pinus sylvestris, Lorix gmelini, P. Koraiensis and Picea, The damage degree of softwood is lighter alternated with bass and lespedeza. The extent of damage was different in various site condition, and several countermeasures were put forward.%于2009年3月～2010年12月,通过实地考察,并结合林业部门提供的数据,对牡丹峰自然保护区啮齿动物群落结构与被害林木种类关系进行了研究.共记录得啮齿动物13种,隶属2目4科11属；林木的被害程度取决于啮齿动物的种群密度;啮齿动物对针叶树危害较大,占被危害树的87％；受害程度从重到轻依次为樟子松、落叶松、红松、云冷杉,但椴树和胡枝子等阔叶林相间的针叶林,受害较轻;不同立地条件下的林本受害程度不同.最后提出预防措施.
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