Hotspots of Ecological and Environmental Risk Research in China Based on Co-word Analysis

摘要

In order to know the research hotspots of ecological/environmental risk, a co-word matrix was constructed with the high-frequency keywords of related papers published on core journals of China Academic Journal Network Publishing Database (CAJD). After making cluster analysis and social network analysis using SPSS, research status of ecological risk was discussed. The results showed that the research hotspots could be divided into five aspects, including ecological risk assessment on heavy metals in the bottom mud, ecological risk assessment of toxic organic pollutants, regional landscape ecological risk, environmental safety accidents and risk management, and other types of ecological risk such as transgenic and biological invasion. The results also showed that traditional research areas including eco-environmental risk assessment and soil/sediment heavy metals risk were the core, and that the diversification tendency of eco-environmental risk research was obvious such as transgenic risk, regional landscape risk, biological invasion, and health risk.