生态学文献作者分布及其增长规律研究

Study on Distribution of Authors of Ecological Document and Its Growth Rules

学科研究人员数量是学科发展的重要指标,学科文献作者数量的分布及其增长规律反映了学科人员数量的变化。文章采用扩散系数和平均拥挤度两个指标,分析了生态学文献作者的分布特点;并根据指数曲线模型时间常量的计量学特点进行了生态学及其分支学科的文献作者增长规律分析。结论是,生态学文献作者按各分支学科分布具有聚集特性;平均拥挤度从1998年后明显逐年增加;15个分支学科文献作者人次符合指数增长规律;所得模型的时间常量与实际增长率没有差别。

The number of research men is the important index throughout the development of a subject. Its change can be refleeted by the distribution and increasing regularity of the author of ecological document. This paper has used two indexes： diffusion coefficient and mean crowd, and analyzed the distributed character on the author of ecological document. According to the metrological character of time constant in exponential, the author of document in ecology and its branch subject has its own increasing regularity. The result is, the distribution of author of document in ecology branch subject has eongregative regularity, mean crowding increased evidently every year since 1998, the author of document in 15 ecology branch subjects accorded with the regularity of exponential, the odds between the real increase ratio and time constant in exponential is minimum difference.