中文摘要：

因水质评价的模糊性和确定指标权重时主观人为因素的干扰，在优化模糊综合评价模型的基础上，分别运用层次分析法、基于实数编码遗传算法的投影寻踪方法确定主观与客观权重，然后计算组合权重。并将此模型运用在黑龙江省农垦红兴隆管理局“853”农场的地下水评价中，结果表明：一分厂、三分厂、六分厂水质达到饮用水标准，其余分厂因铁锰等超标，水质未达到标准。与传统内梅罗指数法和熵权模糊评价法进行对比，评价结果更符合当地地下水水质情况，表明组合权重模糊模型评价模型可操作性较高，合理性较强，为区域水质评价提供了一种新方法。

英文摘要：

To avoid the fuzziness and the subjective factors when evaluatingthe water quality and calculating weights, based on opti- mized fuzzy synthetic evaluation model, we use analytic hierarchy process（AHP） to calculate the subjective evaluation model and use RAGA Projection Pursuit Method to calculate objective weights. Then the ascertaining weight is calculated according to the subjec- tive and objective weights. This model is applied to evaluate the underground water quality of 853 Farm of land reclamation Hongxin- glong administration, Heilongjiang Province. The result shows that the water quality of the first branch,third branch,sixth branch is up to drinking water standard, but the others aren,t up to the standard due to Fe and Mn. Compared with the traditional Nemerow Index Method and Fuzzy Evaluation model based on entropy weight, we can draw the conclusion that the evaluated results accord with the fact of the quality of local underground water well. In addition, the new model is reasonable and the evaluation results are feasible Moreover, the new model provides a new method of evaluating the quality of regional water.