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An analysis of the hotspot and frontier of mine eco-environment restoration based on big data visualization of VOSviewer and CiteSpace

GAO Yunfeng;XU Youning;ZHU Yaxuan;ZHANG Jianghua;Xi'an Geological Survey Center,China Geological Survey;College of Earth Science and Resources,Chang'an University;Qingdao Institute of Marine Geology,China Geological Survey;  
Mine ecological environment restoration is an important measure for the construction of ecological civilization,and hence it has attracted more and more attention and interest among geologists.In order to clarify the hot topics of the restoration of the eco-environment in China's mines in the past 20 years,the frontiers of the historical stage,and the current research progress so as to forecast future research directions,the authors used CNKI as the data source,and employed bibliometrics method and VOSviewer and CiteSpace visual analysis software to quantitatively analyze the relevant documents published in the period of 2000—2018.The results show that,in the past 20 years,the research achievements in the field of mine eco-environment restoration have mainly been published in the form of journals,and the number of documents issued has increased significantly year by year.The key words of "land reclamation","eco-compensation and deposit","phytoremediation of heavy metal pollution","geological disaster management" and "green mine and mine park construction" are the hot research fields through the "co occurrence" analysis of the key words by VOS-viewer.Using CiteSpace's unique time zone map analysis and highlighting key statistics functions,the authors found that China's mine eco-environment restoration has gone through three phases,and its connotation has been continuously enriched and developed.Multi-technical integration for carrying out mine land reclamation and geological disaster management,water and soil pollution source control and treatment technology research and application integration demonstration,ecological rehabilitation technology adapted to local conditions,and the construction of green mines and mine parks will be the research hotspots in the field of mine rehabilitation in the future.
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