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根据南京地区的酸雨现状，有针对性地和系统化地设计与进行了对南京附近代表性土壤——黄棕壤的模拟酸雨淋洗试验。引入ＣＡＲ（ｍ）模型对试验结果数据进行模拟分析，应用ＫＡＬＭＡＮ滤波重构系统状态及其变化。分析结果表明土壤酸化过程是一个缓慢而长期的变化过程，持续的酸雨输入将使黄棕壤的缓冲能力趋于减弱，从而导致土壤的ｐＨ量测值日益依赖于酸雨输入的影响
According to the present situation of acid rain in Nanjing area, the simulated acid rain leaching experiment on yellow soil brown soil, a representative soil around Nanjing, was designed and conducted systematically and systematically. The CAR (m) model is introduced to simulate the experimental data and the KALMAN filter is used to reconstruct the system status and its changes. The results show that soil acidification process is a slow and long-term change process. Continuous acid rain input tends to weaken the buffering capacity of yellow-brown soil, which leads to the increasing dependence of pH value of soil on the input of acid rain