【摘要】 针对小区域内历史灾情资料不多的特点，引入了信息扩散的模糊数学方法，对历史灾情资料进行优化处理，提供了对农业自然灾害进行风险评估的实用方法。在“湖南省自然灾害风险监测管理信息系统”中的应用表明，该方法给出的结果同实际情况相当吻合。更多还原

【Abstract】 ccording to the character that there are not enough historic disaster data in a small region,a information diffusion based fuzzy method is introduced to optimize the historic disaster data and present a practical method for agricultural natural disaster risk assessment.The application in “the natural disaster risk inspection management information system of Hunan Province” shows that the result obtained by this method is conform with the reality.更多还原