Research trends and prospects of urban nonpoint pollution based on bibliometrics
As the treatment of point source pollution was almost completed,the proportion of nonpoint pollution,especially urban nonpoint pollution becomes more and more extraordinary.Due to the dispersion of spatial and temporal distribution,diversity of pollution pathways,and high construction costs,it is difficult to control urban nonpoint pollution,and it has become a key area of pollution prevention and control.CiteSpace software was used to sort out the Chinese and English publications in CNKI and Web of Science from 1990 to 2021.The research progress,hotspots and future directions of urban nonpoint pollution at home and abroad were analyzed,so as to provide scientific reference for the research of urban nonpoint pollution.Result showed that the number of domestic and foreign urban nonpoint pollution publications was generally on the rise.The publications were mainly published in China,America and European countries.Currently,both domestic and foreign researchers were paying attention to the accounting of initial rainwater runoff pollution and the influencing factors of urban nonpoint pollution.For the research on the management tools,foreign countries focused on Best Management Practices(BMPs)and Low Impact Development Strategies(LID),while China focused on sponge cities and combined flow system.The future research should focus on legal and regulatory protection,comprehensive benefit assessment and accurate simulation and prediction of urban nonpoint pollution.
万方数据
维普
