大兴安岭林区为寒温带大陆性季风气候,境内山地起伏不大,多为中、低山和丘陵地带。动植物种类少,乔木树种单纯,以落叶松(Larix gmelini)为主。动物分布属于古北界东北区大兴安岭亚区寒温性动物群,种类组成较简单,但适应于此类环境的种群数量却十分丰富,其中小型兽类啮齿目—鼠类共4科19种,有其较为稳定的生态 Daxinganling forest area is cold temperate continental monsoon climate, the territory of mountain undulating, mostly in the middle and low mountains and hilly areas. Lots of flora and fauna, tree species simple, with Larix gmelini dominated. The animal distribution belongs to the cold-temperate animal group in the Greater Khingan Range sub-region in northeastern Gubeiku. The species composition is relatively simple, but the population adapted to this kind of environment is very rich. Among them, 19 species of 4 rodents - Have their more stable ecology