Environmental changes in man‐made coastal dune pools since 1850 as indicated by sedimentary and epiphytic diatom assemblages (Belgium)

• 1. Diatom assemblages of man‐made coastal dune wetlands between Blankenberge and Heist (Belgium), dating from 1852 to 1929 and sampled from herbarium specimens of macrophytes, were compared with more recent samples collected in the remaining calcareous dune marshes and pools in this area.
• 2. Overall, nutrient conditions inferred from the reference assemblages were fairly eutrophic for phosphorus. Only a minority of the historical assemblages pointed to presumably nitrogen‐limited conditions.
• 3. Significant alterations in general assemblage composition were observed, including a marked decline of epiphytic species, and a decrease in the compositional variation in sediment diatom assemblages. These changes can be attributed mainly to an increased availability of nutrients and degradable organic matter since the mid 1970s. No changes in the salinity range seem to have occurred, suggesting fairly stable hydrological conditions.
• 4. Possible causes for eutrophication include increased atmospheric deposition of nutrients, but also more site‐related phenomena such as guanotrophication, angling and, perhaps, effects of nature management on soil–nutrient cycling. Their relative importance needs to be established and further monitoring is necessary.
• 5. Measures are required to reduce nutrient levels of both permanently and periodically inundated sites and to promote small‐scale habitat differentiation. Due to physical constraints, the latter will be possible only by mimicking the processes that act upon more natural dune systems in management practice.

Copyright © 2003 John Wiley & Sons, Ltd.     

《福建林学院学报》的科学文献分析与评价

对1990～1995年《福建林学院学报》的论文和引文（即参考文献）用文献计量学方法进行统计和分析．结果表明：论文合作程度高，平均引大量未达到国内水平，期刊和图书是林业科技人员最重要的情报源，但专利文献和技术标准等特种文献也应引起本刊作者的高度重视，作者在撰写论文时以引用中文文献为主，本刊的期刊自引率高于大部分学科，说明本刊用稿具有很好的连续性，在我国林业科学研究中占有较高地位．绝大多数引文用于论文引言、实验、结果与分析三部分的论述，本刊引文半衰期为7.11年。     

参考文献中析出文献著录现状调查与分析——以图书馆情报学核心期刊为例

选取了图书馆学情报学17种核心期刊2008年第一期作为调查对象．通过对其文后参考文献中析出文献著录情况的现状进行调研,对不规范的著录举例、分析,并提出了几点建议,以促参考文献的著录逐步走向规范化的轨道。     

不合理引用参考文献问题解决途径探析

加强论文不合理引用参考文献的管理和监督,是目前学术、期刊编辑和情报交流领域的一项重要工作。进一步加强合理引用参考文献的制度建设;加强合理引用参考文献的宣传教育工作,强化论文作者的道德自律;制定科学、合理的工作考核评估标准;建立严格的论文不合理引用审核制度和监督机制等等,是解决不合理引用问题的有效途径。     

基于NE的参考文献图书馆的构建与应用

参考文献的集中化管理是科研工作者所面临的难题。简要论述了应用文献管理软件NoteExpress构建和管理参考文献图书馆的方法。并详细说明了实际应用中,输出要求样式的参考文献列表,制作参考文献样式及输出参考文献后对文档进行修改编辑的方法。最后对NoteExpress的不足之处提出建议。     

畜牧兽医类中文科技期刊参考文献的英文著录解析

指出了科技期刊中文参考文献对照补充英文著录的重要性,具体列出畜牧兽医类中文核心期刊的标准英文刊名,并对英文著录的常见问题进行了分析,提出了避免参考文献著录错误的方法,以期供畜牧兽医期刊投稿作者和编辑人员参考。     

从文后参考文献看我国草业科技人员的文献情报需求

通过对2005年我国草业科学5种主要期刊发表的714篇论文的7482条文后参考文献的类型、语种、时间分布等的统计分析，勾画出我国草业科技人员文献情报需求的一些特征：     

Study on the Development of Wavelet Theory by Analysing References of Wavelet

By CD ROM and Internet Service System,lots of references on wavelet are searched.These references are analysed in the paper,a new viewpoint is put forward by the authors.Recent studies by the authors on wavelets are also introduced.     

浅谈高校图书馆和院系资料室资源共享——以河南师范大学为例

以河南师范大学图书馆为例,探讨了高校图书馆和院系资料室资源共享的过程及目前存在的问题及解决办法。     

期刊学术论文中参考文献的著录失误及对策

本文举证分析了期刊学术论文中参考文献著录时出现的失误及其原因,并针对存在的问题提出了相应的对策,以便为提高期刊论文的质量服务。