Visualizing the emerging trends of biochar research and applications in 2019:a scientometric analysis and review  

作　　者：Ping Wu Zeyu Wang Hailong Wang Nanthi S.Bolan Yujun Wang Wenfu Chen 

机构地区：[1]Hebei Key Laboratory of Soil Ecology,Key Laboratory for Agricultural Water Resource,Center for Agricultural Resources Research,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Shijiazhuang 050021,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Biochar Engineering Technology Research Center of Guangdong Province,School of Environmental and Chemical Engineering,Foshan University,Foshan 528000,Guangdong,China [4]Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China [5]Global Centre for Environmental Remediation,and International Centre for Balanced Land Use,University of Newcastle,Callaghan,NSW 2308,Australia [6]Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,Jiangsu,China [7]Biochar Engineering and Technology Research Center of Liaoning Province,Rice Research Institute,Agronomy College,Shenyang Agricultural University,Shenyang 110866,Liaoning,China

出　　处：《Biochar》2020年第2期135-150,共16页生物炭（英文）

基　　金：support by the National Natural Science Foundation of China(21537002);the Special research assistant project,Chinese academy of sciences(Project no.E022ST01).

摘　　要：Biochar,derived from thermal pyrolysis of biomass,has been regarded as a low-cost,sustainable and beneficial material and widely applied in agriculture,environment and energy during the last two decades.To elucidate the research status timely and future trends in biochar field,CiteSpace is used to systematically analyze the related literature retrieved from the Web of Science core collection in 2019.Based on the keywords clustering analysis,it was found that“biochar production”,“organic pollutants removal”,“heavy metals immobilization”,“bioremediation”were the main hotspots in research covering biochar.“Bioremediation”is an emerging topic and deserves extensive attention due to its highly effective and environmentally friendly treatment of pollutants.Improving the phytoremediation effect,immobilizing functional microorganisms on biochar,and using microorganisms as raw materials to produce biochar were the common methods of biochar-assisted bioremediation.While studies focused on“soil quality and plant growth”and“biochar and global climate change”decreased,investigations concentrated in the toxicity of biochar to soil biota and ruminants are sustainably growing.Research on direct and catalytic thermal pyrolysis of green waste(mainly microalgae)for biofuels(bio-oil,biodiesel,syngas,etc.)and biochar production is increasing.Converting municipal wastes(e.g.,sewage sludge,fallen leaves)into biochar through pyrolysis was a suitable treatment for municipal waste and became a popular topic in recent time.Moreover,the biochar produced from these municipal wastes exhibited excellent performance in the removal of pollutants from wastewater and soil.This review may help to identify future directions in biochar research and applications.

关 键 词：BIOCHAR CiteSpace TOXICITY BIOREMEDIATION Research direction 

分 类 号：S15[农业科学—土壤学]