Risk assessment of volcanic hazard is one of important contents in research of volcanic hazardreduction.
火山灾害风险评估是火山减灾的重要研究内容之一。
2
Using GIS is able to help people implement analysis and integration of environmental data, and provide the making decision basis for planning natural hazardreduction.
利用GIS能帮助人们更好地实现对环境数据的分析与综合能力，并提供制定减灾工作所需的决策依据。
3
It is an economic and effective measure to make full use of the flood control engineering system in flood hazardreduction by applying flood control decision analysis techniques.