Abstract: According to district distributing character of spatial associated effect，state associated effect rule，transition associated effect rule and multi-value threshold activation rule are proposed to represent state transition rule of fuzzy spatial Petri net.Ten idiographic reasoning rule and representation component are particularly described and illuminated further using instance.Combining with the character of fuzzy spatial Petri net，dynamic reasoning process algorithm is proposed based on these rules to realize translation of different spatial state rule gene，some results can be captured and the intermediate state and event of arousing intermediate state transformation can be mined.It can instruct forecast and control of risk process.

Key words: production rule, rule representation, dynamic reasoning, fuzzy spatial Petri nets

摘要： 为便于表示模糊空间Petri网的状态变迁规则，根据空间关联影响区域分布现实特点，提出了空间模糊Petri网中的状态关联影响规则、变迁关联影响规则和多阈值激活规则。依据模糊产生式规则的特点，详细描述了10种具体的推理规则和表示组件，并以实例加以说明。在此基础上，结合模糊空间Petri网的特点提出了动态推理过程算法，可以实现各种空间状态规则因子的转化。动态推理的过程不仅可以获取某种“结果”，而且可以挖掘基于空间位置关联的中间状态及引起中间状态变化的事件，可以有效地指导风险过程预测和控制。

关键词: 产生式规则, 规则表示, 动态推理, 模糊空间Petri网