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[Objective]The paper was to understand the rodent fauna in southeast forest region of Heilongjiang Province and its harm to agriculture and forests.[Methods]The southeast forest region of Heilongjiang Province was surveyed from March2008 to December2013 using night trap method combined with integrated collation of literature. [Result]There were totally 21 species of rodents in southeast forest region of Heilongjiang Province,belonging to 16 genera,8 families,3orders,and the fauna was mainly consisted of palaearctic realm; in terms of captured number,Clethrionomys rufocanus was the dominant species in forest region,while Apodemus agrarius was the dominant species in fields. The number of rodents was closely related to stand age,and the density of rodents was lower in the forest land with longer stand age and greater density. Rodents caused greater harm to timber forest and middle-aged forest than economic forest and young forest,and their damage on newly planted seedlings was particularly greater. The number of rodent population was the highest in summer,but the smallest in spring,while its interannual changes were stable. [Conclusion]The study provided a scientific basis for forestry management and rodent control,which also offered the basic biological data for the study of rodents.
[Objective] The paper was to understand the rodent fauna in southeast forest region of Heilongjiang Province and its harm to agriculture and forests. [Methods] The southeast forest region of Heilongjiang Province was surveyed from March 2008 to December 2013 using night trap method combined with integrated collation of literature. [Result] There were totally 21 species of rodents in southeast forest region of Heilongjiang Province, belonging to 16 genera, 8 families, 3orders, and the fauna was mainly consisted of palaearctic realm; in terms of captured number, Clethrionomys rufocanus was the dominant species in forest region, while Apodemus agrarius was the dominant species in fields. The number of rodents was closely related to stand age, and the density of rodents was lower in the forest land with longer stand age and greater density. harm to timber forest and middle-aged forest than economic forest and young forest, and their damage on newly planted seedlings was particular ly greater. The number of rodent population was the highest in summer, but the smallest in spring, while its interannual changes were stable. [Conclusion] The study provided a scientific basis for forestry management and rodent control, which also offered the basic biological data for the study of rodents