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以油松林、甘肃鼢鼠和防治系统为研究对象,采用系统分析法,组建了甘肃鼢鼠种群、油松、林价、投饵密度等一系列模型,并以经济指标偶联求得防治甘肃鼢鼠的动态经济阈值模型。结果表明:毒饵单价低时,切封洞法经济阈值最大,插洞法最小;而毒饵单价高时,插洞法最大,切封洞法最小;防治定植1年生油松经济阈值较大,4～5年的最小,定植6年后经济阈值逐渐增加。从林地油松被害数量估测模型得知,油松应营造在甘肃鼢鼠2.4只/hm~2以下的林地,才能保证成林。
Taking the Chinese pine and Gansu zokor and the control system as the research objects, a series of models such as Zokor population, Pinus tabulaeformis, Pinus tabulaeformis, feeding density and so on were established by systematic analysis method. Dynamic economic threshold model of zokor. The results showed that when the unit price of bait was low, the economic threshold of seal-hole method was the largest and the insertion hole method was the smallest. When the unit price of bait was high, the method of inserting hole was the largest and the method of cutting hole was the smallest. ~ 5 years minimum, 6 years after planting economic threshold gradually increased. From the woodland Pinus tabulaeformis population estimation model, we know that Pinus tabulaeformis should be established in Gansu Zokor 2.4 woodland / hm ~ 2 below the forest, in order to ensure the success of the forest.