运用系统工程分析的观点对塞罕坝林场今后的荒山造林对策进行了探讨。
Afforestation countermeasures for mountain waste in Saihanba Tree Farm is discussed using systematic engineering.
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.
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.
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