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利用一个具有门限的非线性随机动力气候模式对中国东部江淮流域的降水进行了分析。结果表明：在不同的门限域中，降水对外部强迫的响应有明显差异，呈现出一定的非线性特征；模式能较好地拟合降水的变化趋势。
Precipitation in the Yangtze River-Huaihe River basin in eastern China is analyzed by using a non-linear stochastic-dynamic climate model with threshold. The results show that: in different thresholds, the response of precipitation to external forcing is obviously different, showing a certain nonlinear characteristic; the model can better fit the trend of precipitation.