Literature analysis of surface water and groundwater interaction based on CiteSpace

The complex interaction between surface water and groundwater interferes with the hydrological cycle affect the ecological status of the basin.Engineering measures for artificial collection of surface water and groundwater not only play a key role in solving the uneven distribution of water resources and the contradiction between water supply and demand,but also cause a series of ecological problems.Therefore,it is particularly important to explore the relevant mechanism of the interaction between surface water and groundwater.Through bibliometric analysis,it helps researchers grasp the current research status and hotspots in this field,which provides references for related research. Based on the Web of Science (WoS) data sources from 1985 to 2020,CiteSpace bibliometric software is used to quantitatively analyze the literature on the interaction of surface water and groundwater.By analyzing the cited documents,authors,research organizations,key words,and other elements,combined with the knowledge map,it displays the current research status,frontiers,and hotspots of this field. From 1985 to 2020,the total amount of scientific research papers in this field can be divided into three stages:slow growth-fluctuating,growth-steady growth and the increase in the number of published articles.The number of articles published in Journal of Hydrology,Environmental Earth Science,Hydrological Processes ranks top three.Research forces in this field are mainly concentrated in the United States,China,Australia.The author who published the most in the research period is Chunmiao Zheng.Chinese Academy of Sciences,U.S.Geological Survey,and Flinders Univ S Australia are the most influential institutions in the world.The knowledge graphs show the top ten cited documents in this field and the top 5% key words of the literature frequency.The keywords generate six cluster tags:hyporheic zone,hydrogeochemistry,climate change,soil moisture,riparian,and submarine groundwater discharge. More scholars are paying attention to this field,which contains several interdisciplinary subjects,providing a wide range of ideas and methods for research.The changing trend of research in this field is single groundwater research→groundwater-surface water interaction research→errestrial-aquatic ecosystem water interaction research on the response to influencing factors.The research hotspots in this field in recent years are exploring the water flux,permeability and discharge of groundwater-surface water interaction through heat tracing,developing and improving numerical models to improve the fit of the model to the interaction interface and the interaction of water bodies in different research areas,analyzing the response of water interactions to the biological,physical and chemical processes of human activities and the climate system under the concept of biogeochemical cycles.In the future,the multi-scale interdisciplinary research of surface water-groundwater interaction and enhance cooperation among teams should be focused on.

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