摘要
本文通过高原鼢鼠对草场形成危害的途径及造成牧草损失的测算,根据投入与产出的价值,建立高原鼢鼠防治的经济阈值模型(Economic threshold mould),进而求得海北高寒草甸上高原鼢鼠的防治阈限为x=4.18。确定地下害鼠经济阈值的方法具有普遍性,本防治阈值模式适用于高寒草甸草场,为我们对该害鼠的综合治理提供了依据。
Plateau zokor is one of the harmful rodents which are distributed in the grassland, farmland and forest of Qinghai province. They live under the ground by digging the tunnel to take the plant's root and stem for food. Depend on the harm ways of plateau zokor, the lossing weight of prediction and the value of investment and output, this article established the preventive economic threshold mould of plateau zokor. From the mould, we get the limit of the threshold for Haibei alpine meadow X=4.18. That provided the basis for the comprehensive harness.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
1990年第2期103-106,共4页
Chinese Journal of Vector Biology and Control
关键词
高原鼢鼠
危害
草场
防治阈值
Myospalax baileyi Economic threshold Alpine meadow control threshold Corn prehensive harness
