Abstract:[Background] Soil quality is a critical tool to measure sustainability and also the important path to solve food and environment problems in developing countries. As a largest developing country, having a further discussion on the historical venation of soil quality is of great importance for reference. Whereas, there are obvious disadvantages of traditional literature review method, for example, subjective judgement. Hence, the bibliometrics method, running by the software of Citespace, was used here to identify the venation of soil quality in China. Based on the data in CNKI, there has been a great emerging in research articles on soil quality in China, just for the period of 2006-2016, the number of papers accounts for about 84.5% of total since 1980. However, previous reviews cannot completely reflect the historical venation because of their limitations, for exalaple, it is impossible for a scholar to read all of papers in this field and exactly and correctly identify the principle publications.[Methods] Based on the CNKI (China National Knowledge Infrastructure) database, visualization analysis based on Citespace and combined with critical reading of literatures was used to quantitatively analyze the historical advances of soil quality research in China since 1980s.[Results] At present, researches on soil quality in China are driven by disciplinary development and social demands are still at the basic stage where it associated much with natural science and few with social sciences. In respect of support funds, national fund is the primary source, and fund from local and Chinese Academy of Sciences takes the second place. According to the characteristics of keyword co-appearance networks at different periods, researches on soil quality in China can be divided into 4 stages with their own distinctive features:1980-1990 (Budding stage) while the main focuses were agricultural production and the relation was weak between multi-disciplines; 1991-2000 (Concept formation stage) while concept and indicators of soil quality had a further development; 2001-2005 (Initial applied stage) while scientists paid great attentions to the indicator selection and the effect of land use change, soil contamination on soil quality; and 2006-2016 (Systematized stage) while cross-disciplines become strong and more aspects about soil quality were in systematic study.[Conclusions] Based on such a quantitative method, the historical venation of soil quality was discussed in a relatively objective way and this will give a good reference to the future development of this research field.
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