为解决灰色系统长期预测灰色区间放大、预测精度降低的问题，依据最近的数据对要预测的数据的影响最大的思想，构建了基于窗体的动态灰色系统，采用邻近动态窗体的方式对对盐城海岸带土地利用变化数据进行动态预测，其与真实值的差值的绝对平均值(0.2)与最大最小差值(0.71) 均优于GM预测结果（其与真实值的差值的绝对平均值为0.342与最大最小差值为1.13），实现了土地利用变化的长期预测。-

To solve the long-term forecast of the gray system gray interval zoom, forecast accuracy to reduce the problem, based on recent data on the data to predict the biggest ideas, build a form-based dynamic gray neighboring dynamic form oncoastal zone land use change data for dynamic prediction with the true value of the difference between the absolute average of (0.2) and the minimum and maximum difference (0.71) are better than the GM predictions (with the true value of the difference between the mean absolutevalue of 0.342 with the maximum and minimum difference of 1.13), to achieve the long-term projections of land use change.