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科技文献是学科发展的重要指标。研究国内外小叶杨科技文献是开展小叶杨科学研究工作的重要组成部分。本文是借助国际CAB林业文摘 ( 1939～ 1999年 )对国内外有关小叶杨的科技文献进行查新、检索和分类 ,研究小叶杨科技文献的时间分布、国家分布和学科分布动态 ,了解研究广度、深度和现状 ,寻找可借鉴的研究方法 ,为当前和今后开展研究提供理论依据
Scientific literature is an important indicator of discipline development. Studying domestic and international poplar science and technology literature is an important part of poplar science research work. This paper is based on the international CAB Forestry Abstracts (1939 ~ 1999) to search, search and classification of scientific and technological literature of Populus tomentosa at home and abroad, to study time distribution, national distribution and subject distribution dynamics of Populus tomentosa scientific literature to understand the breadth of research, Depth and current situation, looking for ways to learn from, for the current and future research to provide a theoretical basis