招鹰控鼠对高原鼠兔的防效试验

天祝县位于河西走廊东部,草原分布有高寒草甸、灌丛草甸等草甸草原,高原鼠兔是南部草甸草场的优势鼠类,危害严重,有效洞口密度达458个/hm2。为了进行有效防治,制作鹰架,招鹰控鼠。观测结果表明,招鹰控鼠方法控制高原鼠兔效果明显,第3年有效洞口密度平均降低37.5%,植被破坏率平均减少11.4个百分点,有效抑制了高原鼠兔种群数量的恢复,减少了牧草损失。

Control Effect of Attracting Hawks to Control Rodents on Plateau Pika

The Tianzhu County was Located in East of He Xi Corridor, grassland distributed Alpine meadow, shrub meadow and so on. The dominant species of rodent is the plateau pika,causes serious damages. The effective density of rat is 458 per hectare. In order to effectively control it, we make scaffold attracting hawks to control rodents. The result showed that this method have obvious effect, the burrow density average decrease 37.5% for the 3th Year, the average reduction for the rate of damage of vegetation being 11.4 present. The recovery of the number of Plateau pika has effectively inhibited,increased the for- age loss.