From: The visualized knowledge map and hot topic analysis of glomalin-related soil proteins in the carbon field based on Citespace
Country
Frequency
Centrality
Starting year
China
181
0.54
2003
USA
96
0.27
1999
India
71
0.08
2009
Brazil
47
0.09
2006
Spain
32
0.33
Australia
27
0.10
2002
Czech Republic
23
0.06
2016
Germany
19
0.26
2007
France
16
0.32
Chile
13
0.03
2000