本文对河北省北部的塞罕坝机械林场和御道口牧场的森林鼠害防治技术进行了初步研究，包括杀鼠烟剂的筛选和中药提取物的筛选。
In this paper, the preliminary study on prevention and control technique of forest rat harm in Saihanba Mechanised Tree farm and Yudaokou Ranch of northern of Hebei was made.
金花鼠数量显著地增加，是因为森林里连续两年丰硕的橡子收成。
The chipmunk population increased strikingly due to two successive years of abundant acorn crops in the forest.
生物学家：在一片食肉动物不受控制的灌木丛里，每公顷的新西兰森林就有2到6只船鼠和3到13只负鼠。
BIOLOGIST: In a bush that doesn't have predator control, every hectare of indigenous forests within New Zealand has between 2 and 6 ship rats and about 3 to 13 possums.
老实说，鹪鹩在森林中筑巢，？只需要一根小树枝就够了；偃鼠喝水，最多就是一肚子，？又能喝多少？
In truth a wren needs only a twig to build its nest in forest; how much water does a mole can drink? A skinful of water at most.
鼠可破坏森林植被，植被、草原的破坏可使环境沙化。
They can cause damage to forest vegetation, and this in turn can lead to environment desertification .
七年前，威克森林大学的生物化学家崔政正在进行一个常规的试验：他给试验鼠注射一种攻击性很强的癌细胞，致死率100%。
Seven years ago, biochemist Zheng Cui of Wake Forest University was conducting a routine experiment, injecting test mice with a strain of cancer cells so aggressive it caused a 100 percent death rate.
通过生物性不育剂防治森林害鼠试验，结果表明，雌成年鼠怀胎率下降55%，高投药量会得到高效。
Control forest moles were tested by biological sterile drug. The results showed pregnant rate of female nature mole was decreased 55%. More biological drug dosage the more effect.
黑线姬鼠体全沟硬蜱幼、若蜱的寄生百分率（54.5％）和花鼠体森林革蜱幼、若蜱的寄生指数（17．8）最高。
The parasitic rate of Ixodes persulcatus (54, 5%) on Apodemus agrarius and the parasitic index of Dermatcentor sih'artnn (17. 8) on Eulantias sibiricus are the highest.
通过分析甘肃省森林害鼠发生现状与造成森林害鼠猖獗发生的主要原因，结合森林害鼠综合管理理论，提出甘肃省森林害鼠综合管理宏观对策。
By analyzing the main reason causing forest harmful rats being rampant and the present situation of forest harmful rats occurrence in Gansu, the counter measures were provided.
通过分析甘肃省森林害鼠发生现状与造成森林害鼠猖獗发生的主要原因，结合森林害鼠综合管理理论，提出甘肃省森林害鼠综合管理宏观对策。
By analyzing the main reason causing forest harmful rats being rampant and the present situation of forest harmful rats occurrence in Gansu, the counter measures were provided.
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