论文部分内容阅读
以林业检索刊物、林业相关检索刊物和北京林业大学图书馆馆藏期刊为依据,对建国以来防护林期刊论文的地区分布、年代分布、核心期刊进行了数量研究。特别对我国三北地区防护林期刊论文进行了专题情报研究。它包括防护林建设在三北地区经济发展中的地位;三北地区防护林的类型及类型区划;三北地区防护林建设的特点和发展趋势。
Based on the literature of forestry search, forestry-related search journals and the collection of journals of Beijing Forestry University, the quantity, age distribution and core periodicals of the papers on shelterbelt published since the founding of the People’s Republic of China were studied. In particular, we carried out special intelligence research on the articles on shelter forest in the Three North regions in our country. It includes the status of shelterbelt construction in the economic development of the Three North regions; the types and types of shelterbelts in the Three-North region; the characteristics and development trend of shelterbelt in the Three-North region.