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通过对红庄林场不同立地条件随机抽样调查,结果表明:山间谷地甘肃鼢鼠平均密度为33只/hm2;草甸山坡甘肃鼢鼠平均密度为13.3只/hm2;林地甘肃鼢鼠平均密度为6.3只/hm2。由于鼢鼠破坏活动,幼林受害率轻者为10%~20%,重者达到70%~80%。鼢鼠危害已制约当地造林工程的发展。
The results showed that: the average density of zokor in Gansu valley was 33 / hm2; the average density of zokor in meadow was 13.3 / hm2; the average density of zokor in Gansu was 6.3 only / hm2. As zokor sabotage activities, the young victims of light damage rate of 10% to 20%, severe cases reached 70% to 80%. Zokor harm has restricted the development of local afforestation.