The visualized knowledge map and hot topic analysis of glomalin-related soil proteins in the carbon field based on Citespace

Chemical and Biological Technologies in Agriculture

Table 4 Characteristics and frequency of research hot topics

Keywords	Frequency	Centrality
Arbuscular mycorrhizal fungi	225	0.07
Glomalin	191	0.07
Aggregate stability	164	0.11
Carbon	154	0.06
Nitrogen	117	0.09
Organic matter	107	0.11
Protein	94	0.06
Hyphae	90	0.06
Organic carbon	72	0.03
Glomalin-related soil protein	64	0.12
Diversity	60	0.07
Stability	51	0.03