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大沙鼠是啮齿目,鼠科,沙鼠亚科的小型哺乳动物。近十多年来,在民勤大面积梭梭固沙林内繁殖危害相当严重。防治大沙鼠对巩固固沙造林成果,预防流行性疫病具有重要意义。一、大沙鼠的主要形态特征大沙鼠的毛长浓厚,绒毛密,粗毛稀,背部毛为灰棕黄色,腹部毛白色,体形较大,据我们捕获65只大沙鼠测定:平均体重165.7克,最重250克;平均身长16.4厘米,最长19厘米;平均尾长13.2厘米,最长16厘米;尾长稍短于身长,尾巴上密被粗毛,尾尖有一束长毛。
Ophiopogon japonicus is a small mammal of rodents, murine and gerbil subfamilies. In the recent ten years, the breeding of large-scale Haloxylon ammodendron colonies in Minqin is very serious. Prevention and treatment of gerbils on the consolidation of sand consolidation and afforestation results, prevention of epidemic disease is of great significance. First, the main morphological characteristics of gerbils Large gerbils long hair thick, velvet dense, coarse hair thin, back hair gray-brown yellow, white belly hair, body shape larger, according to our capture of 65 large gerbils Determination: Average body weight 165.7 grams, the most important 250 grams; the average length of 16.4 cm, the longest 19 cm; average tail length of 13.2 cm, the longest 16 cm; tail length slightly shorter than the tail on the dense coarse hair, the tail has a long hair.