基于 CiteSpace 的稻田湿地土壤磷吸附和释放研究可视化分析.

In paddy wetland ecosystems,soil phosphorus adsorption and release characteristics play an important role in crop growth and environmental protection. CiteSpace software was used to visualize and econometrically analyze the research literature on phosphorus adsorption and release in CNKI database from 1992 to 2022,summarized the input and output of phosphorus in paddy wetlands,sorted out the development context of phosphorus adsorption and release research,used price theory to calculate the core author group,and retrospectively explored the main research hotspots and applications of phosphorus adsorption and release in paddy wetlands. The results showed that there were 1 130 articles on phosphorus adsorption and release from 1992 to 2022,and the overall trend of publication volume was rising in waves,and a large number of scholars were paying more and more attention to this field. An analysis of core researchers found that the research team centered on Lin Weijian and Zhan Yanhui of Shanghai Ocean University ranked first in the number of articles,but there was little cooperation between different authors. After cluster analysis of keywords,the research content of phosphorus adsorption and release could be divided into four categories, mainly involving four aspects of phosphorus morphological distribution,influencing factors of phosphorus adsorption and release,evaluation of soil adsorption and phosphorus release capacity,and the use of mathematical models to explore the adsorption and release process of phosphorus. The migration and transformation of phosphorus in paddy wetlands and the environmental risk of phosphorus loss had become research hotspots in this field,and the use of covering technology and biochar were future research trends and would become the key research direction of a large number of scholars. In general,the research on the adsorption and release of phosphorus had received more and more attention,the number of papers and research directions continued to rise and spread,and the application research in paddy wetlands was not extensive enough,and further cooperation between research institutions and scholars should be continuously strengthened,and new technologies should be used to promote the utilization of agricultural resources in rice wetlands and promote the sustainable development of the ecological environment. [ABSTRACT FROM AUTHOR]