目的应用CiteSpace和VOSviewer软件对蛇咬伤领域的研究现状、热点及趋势进行可视化分析。方法采用文献计量学方法从Web of Science核心库中收集相关文献,并使用CiteSpace和VOSviewer进行数据可视化和分析。结果通过446篇相关文献研究,...目的应用CiteSpace和VOSviewer软件对蛇咬伤领域的研究现状、热点及趋势进行可视化分析。方法采用文献计量学方法从Web of Science核心库中收集相关文献,并使用CiteSpace和VOSviewer进行数据可视化和分析。结果通过446篇相关文献研究,发现蛇咬伤的临床研究主要集中在蛇咬伤的治疗与护理、预防与控制、诊断与治疗以及蛇毒成分。其中,蛇毒成分的研究最为热门,而蛇咬伤患者的临床治疗与护理管理则是重点研究方向。结论本研究系统分析了蛇咬伤临床研究的趋势和热点,为今后蛇咬伤的临床决策和急诊医学研究提供进一步参考。展开更多
Taking Hainan Eucalyptus plantation as the research object with 4 other kinds of plantations or natural forest as reference plots, the effects of different forest land types on soil nutrient contents were analyzed, an...Taking Hainan Eucalyptus plantation as the research object with 4 other kinds of plantations or natural forest as reference plots, the effects of different forest land types on soil nutrient contents were analyzed, and the differences of soil properties were discussed. The results showed that: (1) Eucalyptus plantations were relatively helpful to reduce soil bulk density and enhance the stability of water-stable aggregates;(2) Eucalyptus plantations can improve the content of soil organic matter;(3) Soil pH showed an overall acidi fication trend under forest land conditions in Hainan;total nitrogen and alkali-hydrolyzed nitrogen content of Eucalyptus plantations showed a downward trend with the deepening of soil layer;total phosphorus and available phosphorus content showed a downward trend, while organic matter, total potassium and available K showed an upward trend. (4) The contents of total phosphorus and available phosphorus in the soil of Eucalyptus plantations of different ages did not change significantly, whereas the contents of other nutrients decreased gradually with the increase of soil depth.展开更多
文摘目的应用CiteSpace和VOSviewer软件对蛇咬伤领域的研究现状、热点及趋势进行可视化分析。方法采用文献计量学方法从Web of Science核心库中收集相关文献,并使用CiteSpace和VOSviewer进行数据可视化和分析。结果通过446篇相关文献研究,发现蛇咬伤的临床研究主要集中在蛇咬伤的治疗与护理、预防与控制、诊断与治疗以及蛇毒成分。其中,蛇毒成分的研究最为热门,而蛇咬伤患者的临床治疗与护理管理则是重点研究方向。结论本研究系统分析了蛇咬伤临床研究的趋势和热点,为今后蛇咬伤的临床决策和急诊医学研究提供进一步参考。
文摘Taking Hainan Eucalyptus plantation as the research object with 4 other kinds of plantations or natural forest as reference plots, the effects of different forest land types on soil nutrient contents were analyzed, and the differences of soil properties were discussed. The results showed that: (1) Eucalyptus plantations were relatively helpful to reduce soil bulk density and enhance the stability of water-stable aggregates;(2) Eucalyptus plantations can improve the content of soil organic matter;(3) Soil pH showed an overall acidi fication trend under forest land conditions in Hainan;total nitrogen and alkali-hydrolyzed nitrogen content of Eucalyptus plantations showed a downward trend with the deepening of soil layer;total phosphorus and available phosphorus content showed a downward trend, while organic matter, total potassium and available K showed an upward trend. (4) The contents of total phosphorus and available phosphorus in the soil of Eucalyptus plantations of different ages did not change significantly, whereas the contents of other nutrients decreased gradually with the increase of soil depth.
