目前,水文地质学中所采用的预测方法不外于两类,一类是利用确定性数学模型对系统的未来状态进行预测,这种预测一般要求系统的结构和参数已知,常对资料要求高,计算复杂;另一类是利用非确定性数学模型对系统未来状况进行预测,这种预测是建立在系统的结构和参数受许多不确定性因素支配基础上。与数值法相比,后一种预测要求资料较少,计算工作量不大。我们曾说水文地质系统 At present, the prediction methods used in hydrogeology are no more than two types. One is to predict the future state of the system by a deterministic mathematical model. Such prediction usually requires that the structure and parameters of the system are known, and often the data requirements High and complex in calculation. The other is to predict the future state of the system by non-deterministic mathematical model. The prediction is based on the fact that the structure and parameters of the system are dominated by many uncertain factors. Compared with the numerical method, the latter prediction requires less information and less computational workload. We have said that hydrogeological systems