论文部分内容阅读
中华鼢鼠(Myospalax fontanieriiMilne-Edwards)是我国北方黄土高原旱作区丘陵地带的重要害鼠。据1985年4月—1986年10月在离石、临县、灵石、吉县、左权、隰县、榆社等县调查,选有代表性的不同作物地块3332亩,开洞3713个,经24小时后被鼢鼠封堵洞1895个,堵洞率51%。每亩平均有鼠0.57只,个别地块每亩有鼠7只。中华鼢鼠昼夜活动,咬断农作物、树木根系,造成缺首断垄,如吉县桑村1200亩小麦,因鼠害缺苗率达25.6%,严重地块达60%。中阳县弓家湾村1.5万株桑树,两年被鼢鼠危害67%;榆社县乔家沟村1.2万株苹果树,有3100株被鼢鼠咬断根系而死,其余极度衰弱表现丛生不挂果实。鼢鼠还贮粮,常把各种作物果实拖入洞中,数量多达10—30公
Myospalax fontanieriiMilne-Edwards is an important pest in the hilly areas of the northern Loess Plateau in northern China. According to the survey conducted in Lishi, Lingxian, Lingshi, Jixian, Zuoquan, Yixian, Yushe and other counties from April 1985 to October 1986, 3,332 mu of representative plots of different crops were selected and 3713 were opened , 24 hours after the zokor plug hole 1895, blocking rate 51%. An average of 0.57 mice per acre, individual plots with 7 mice per acre. Chinese zokor diurnal activities, biting off crops, tree roots, resulting in lack of first rupture, such as 1,200 acres of wheat mulberry village Jixian, due to lack of mouse rodent rate of 25.6%, a serious block up to 60%. 15,000 mulberry trees in Bowjiawan Village, Zhongyang County, 67% of which were killed by zokor in two years; 12,000 apple trees in Qiaojiagou Village, Yushe County, and 3,100 were bitten off by zokor and the rest were extremely weak Clump of fruit. Zok rats also stored food, often dragged into the hole in a variety of fruit crops, the number of up to 10-30 public