论文部分内容阅读
陕北鼢鼠数量多,分布广,为害农田严重,农业生产难保证,人民食粮有亏损。这种鼠类习于地下洞道生活,每逢洞口开启,随即推土封堵,一般洞道约在地面下十厘米深处,与地面近于平行,纵横蔓延,错综交织,迂迥曲折, 长达十数米,以至数十米。这种洞道,称为常洞,是它们寻食、求偶、运粮以及其他活动经常往返的道路;农民用器械捕杀时,即在这个洞道上面安放踏等候牠们封堵时加以捕捉。在陕北每年用这种方法捕杀的数量,有数千只;这
Northern Shaanxi zokor number, wide distribution, serious damage to farmland, agricultural production is difficult to guarantee, the people food loss. This mouse habitual underground tunnel life, whenever the hole opens, then push the earth block, the general tunnel about 10 cm below the ground, and the ground near parallel, vertical and horizontal spread, staggered intertwined, tortuous, Up to ten meters, and even tens of meters. The holes, often called holes, are where they often search for food, courtship, food, and other activities, and peasants use their instruments to capture and capture when they are ready to wait for them to block when they are killed. There are thousands of kills in this way in northern Shaanxi each year;