基于CNKI数据库的土壤酸化文献计量分析

为探索近年来国内土壤酸化研究的热点与发展趋势,以CNKI数据库为基础,采用统计与聚类等分析方法,借助CiteSpace信息可视化软件及文献计量学知识,统计并绘制有关国内土壤酸化研究文献的机构、关键词、文献被引频次等信息图表,挖掘土壤酸化研究的整体发展趋势、高产机构、高频关键词等信息。研究发现我国土壤酸化研究的主题从森林土壤逐渐转移至农田土壤,酸沉降及土壤化学在土壤酸化研究中一直属于重点关注对象。研究机构主要集中在高校和科研院所,同时高频关键词显示国内土壤酸化研究主要集中在酸沉降、施肥管理、土壤结构、作物生长、酸化成因及改良、连作障碍及土壤污染等方面。该研究有助于全面了解国内土壤酸化研究现状及进展,为农田土壤酸化改良方面的研究及应用提供重要参考。

Bibliometric Analysis of Soil Acidification Research Based on CNKI Database

In order to explore the hotspots and development trends of domestic soil acidification research in recent years, the statistics and mapping of domestic soil acidification research literature Institutions, keywords, literature citations and other information charts were made, and the development trend of soil acidification research, high-yield institutions, high-frequency keywords and other information were explored based on the CNKI database, using the statistical analysis, clustering and CiteSpace information visualization software and bibliometric method. The results indicated that the theme of soil acidification research in China had gradually shifted from forest soil to farmland soil. Acid deposition and soil chemistry had been the focus of attention in soil acidification research. Research institutions were mainly concentrated in universities and research institutes. At the same time, high-frequency keywords showed that domestic soil acidification research mainly focused on acid deposition, fertilization management, soil structure, crop growth, acidification causes and improvement, continuous cropping obstacles and soil pollution. This study not only helped to fully understand the status and progress of domestic soil acidification research, but also provided an important reference for the research and application of farmland soil acidification improvement.