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目的立足于我国北方区域性新造林、次生林的不同森林立地条件下,探讨林区鼠害控制标准。方法在蛮汉山林场新造林地和次生林地各选择3块样地,采用毒饵盒法连续3 d调查毒饵取食情况,之后采用夹日法在所选样地连续捕获4 d,计算鼠的捕获率;同时在新造林地和次生林地再分别选择3块样地作为对照区,调查对照区啮齿动物的群落组成及数量。根据灭鼠前后捕获率变化情况计算防治效果。结果在蛮汉山林区,新造林地长尾仓鼠为优势种;次生林地大林姬鼠为优势种。应用PVC毒饵盒以C型肉毒素为毒饵进行林区鼠害防治后,防治区害鼠密度显著低于对照区(F=6.46,P<0.05)。结论C型肉毒素在2块林地均具有较好的适口性和防治效果,可在林区灭鼠中推广应用。
Aim Based on the different forest sites of new afforestation and secondary forest in the northern part of China, the control standards of rodent pests in forest areas were discussed. Methods Three plots of newly-established and secondary forest land were selected in Gahanhan Forest Farm. The bait box method was used to investigate the bait feeding for three consecutive days. After that, At the same time, three plots of plots were selected as control plots in the newly-established and the secondary plots, respectively. The composition and number of rodents in the control plots were investigated. According to the change of capture rate before and after rodent control effect. The result was that in the Hanhan forest area, the long-haired hamster was the dominant species in the newly afforestation land. The dominant species was Apodemus agrarius in the secondary forest. Application of PVC bait box to Botulinum toxin type C as a bait for forest rodent control, the density of control pests was significantly lower than the control (F = 6.46, P <0.05). Conclusion Botulinum toxin C has good palatability and control effect in two forestlands, which can be applied in rodent control in forest areas.