Abstract：[Background] As the most important factor hindering the soil erosion, root plays an irreplaceable role in the process of soil erosion. At present, there are many domestic studies on the control of soil erosion by root system; however, the knowledge structure on this area is not systematically sorted.[Methods] In order to reveal the research and development trend of role of the root system in soil erosion control, this paper used the 1 193 articles from CNKI database during 1988 to 2017 as the original data, using bibliometrics and CiteSpace Ⅲ to map the root system resisting erosions, identify the main journals publishing the papers of this topic, top authors and institutions, sources of major funds and hotspots in different stages of this field.[Results] 1) In the past 30 years, the number of research papers about this topic published in China showed a rapidly increasing trend. In particular, the number of papers published in 2012-2017 accounted for 43.25% of the total papers, and highly cited papers mainly were concentrated in 1990-2003. 2) The journals publishing this topic were mainly related to the disciplines of soil and water conservation, and the researches were supported by the National Natural Science Foundation of China and the National Science and Technology Support Program accounted for 25.23% of the total papers. 3) The authors showed a partially centralized, fragmented status with high-frequency authors, and the cooperation between the authors was limited to a team. 4) Studies on the intensification of soil anti-scourability by plant roots were the research hotspots in 1988-2001, and then the scientific research was dominated by root system slope protection, root system characteristics on soil permeability, and root-soil complexes. In addition, the study of root exudates, roots increasing soil infiltration rate and the temporal and spatial dynamic processes of plant community roots evolution in soil may be the focus of research in this field in the future.[Conclusions] Through the visual excavation and analysis of knowledge maps of the role of root in soil erosion control research, it is conducive to researchers to have a more comprehensive and detailed understanding on the history and current situation of the role of root in soil erosion control research in China. This study can provide a reference for subsequent research in this field.
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2018, Vol. 16 
