【摘要】 探讨了多种影响因素共同影响下的综合干旱评价指标等级评定,介绍了利用学习向量量化(LVQ)神经网络模型,将它应用于农业干旱综合指标评价,改进了干旱等级评价的计算方法,实例评价结果和历史记载取得较好一致性,具有较好的实用性,为改进农业干旱综合评价提供了一种简捷的分类评价方法。更多还原

【Abstract】 The building-up of the comprehensive drought assessment model under the common effect of influential factors is discussed and the LVQ neural network model is introduced.The model is applied to the comprehensive drought assessment model,to improve the calculating method of the drought assessment model.The example verification results are well consistent with the history records.The research is of practicality and provides a simple way for the comprehensive drought evaluation of agriculture.更多还原