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引文较确切地反映了作者吸收情报的能力和情报需求的特点和规律。本文抽样选取我校博士生的学位论文为样本，在对其中、外文引文进行了文献类型和学科分类的计量研究后，探讨林业博士生对中外文献情报需求的特点和规律：他们对高新技术，特别是对应用数学和计算机学科文献的需求量增加；对特种文献如：学位论文、研究报告、标准会议文献的需求量加大，特别是对学位论文，不仅需求本校的并且需要其它单位的。对国外文献的需求则以英语期刊文献为主，侧重面是７０、８０年代发表的论文。
Quotations more accurately reflect the author’s ability to absorb intelligence and intelligence needs of the characteristics and laws. This thesis chooses the dissertations of Ph.D. candidates from our school as the sample, after studying the types of documents and the classification of the foreign citations, the author probes into the characteristics and regularities of forestry doctoral students’ needs for Chinese and foreign literature: In particular, the demand for literature on applied mathematics and computer science has increased. The demand for special documents such as dissertations, research reports and standard conference proceedings has increased. Especially for degree dissertations, not only our school needs but also other units are required. The demand for foreign literature is mainly based on the English periodical literature, focusing on the papers published in the 1970s and 1980s.