基于可拓工程方法的地表水环境质量评价研究——以渭河陕西段环境质量评价为例

Study of Surface Water Environmental Quality Based on the Extension Engineering Method——taking the environment quality assessment of Shaanxi section of Weihe river as an example

在介绍可拓工程方法中物元理论的基础上,构建了地表水环境质量评价的综合物元模型,运用综合评判物元理论模型对渭河陕西段的水环境质量状况进行了评定．评价结果表明,渭河陕西不同地段水质状况不同,宝鸡至西安段水质较差,西安至渭南段水质存在恶化趋势．评定结果与现场调查资料相一致．该方法模型简单,评价结果可靠,为环境质量评价提供了一种新的思路．表4,参10．

On the basis of the introduction of the matter-element theory, the integrate matter-element model was gave out that surface water environment evaluation and this integrate model was used that assess the environmental quality of Shaanxi section of Weihe river. The results show the water qualities of different section of Weihe are different. The water quality of Weihe from Baoji to Xi＇an is worse than from Xi＇an to Weinan. This assessment result is consistent with the actual investigation data. The extension engineering method has simple model and credible assessment result, it offers a new scientific method for environment quality assessment.4tabs., 10refs.