本文将蓄洪区灾民撤退过程置于一定的时空域中加以考查，对撤退过程进行定位、定量的空间动态分析模拟。
Based on the spatial and temporal characteristics of retreating process of the victim residents, the paper analyse and simulate the resident retreating process.
城市用地变化是一种时空动态变化的复杂地理过程，如何有效地模拟这一过程是该研究领域的一个重要问题，在诸多模拟模型中元胞自动机具有明显优越性。
Urban land-use change is a complex dynamic and spatiotemporal process and how to simulate this process is a key problem in the research field and Cellular Automata Model has obvious superiority.
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