A new method for water quality assessment: by harmony degree equation
A new method for water quality assessment: by harmony degree equation
复制标题
水质评价新方法：和谐度方程
DOI：
10.1007/s10661-018-6541-6
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发表时间：
2018
影响因子：
3
通讯作者：
Ma Junxia
中科院分区：
文献类型：
--
作者：
Zuo Qiting;Han Chunhui;Liu Jing;Ma Junxia
水质评价是水资源开发、利用、管理和保护的重要基础性工作，也是水安全的前提。将和谐度方程引入水质评价研究中，提出了一种基于和谐度方程的水质评价新方法：和谐度方程法。首先详细阐述了该方法的计算步骤和思路，然后将该方法与其他几种重要的水质评价方法（单因子评价法、均值型综合指数评价法、多层次灰色关联评价法）相结合，对我国淮河最大支流沙颍河的水质进行了评价。为此，利用2013-2014年7个监测点的9个水质变量的2年（2013-2014年）数据集，约189个观测数据，对新方法的特点和优势进行了比较和分析。结果表明，WQA-HDE的计算步骤与综合评价法相似，与其他水质评价方法的结果相比，WQA-HDE具有更强的可操作性。此外，该方法通过设定水质的判断标准值HD 0，显示出良好的灵活性，当HD 0 = 0.8时，结果更接近实际，更真实可靠。特别是当HD 0 = 1时，WQA-HDE的结果与单因素评价法一致，两种方法都受到最严格的“一票否决”判断条件的约束。因此，WQA-HDE是一种将单因素评价与综合评价相结合的综合评价方法。本研究不仅拓宽了和谐论理论方法体系的研究领域，而且促进了水质评价方法的统一，对其他综合评价也具有一定的借鉴意义。
Water quality assessment is an important basic work in the development, utilization, management, and protection of water resources, and also a prerequisite for water safety. In this paper, the harmony degree equation (HDE) was introduced into the research of water quality assessment, and a new method for water quality assessment was proposed according to the HDE: by harmony degree equation (WQA-HDE). First of all, the calculation steps and ideas of this method were described in detail, and then, this method with some other important methods of water quality assessment (single factor assessment method, mean-type comprehensive index assessment method, and multi-level gray correlation assessment method) were used to assess the water quality of the Shaying River (the largest tributary of the Huaihe in China). For this purpose, 2 years (2013–2014) dataset of nine water quality variables covering seven monitoring sites, and approximately 189 observations were used to compare and analyze the characteristics and advantages of the new method. The results showed that the calculation steps of WQA-HDE are similar to the comprehensive assessment method, and WQA-HDE is more operational comparing with the results of other water quality assessment methods. In addition, this new method shows good flexibility by setting the judgment criteria value HD0of water quality; when HD0= 0.8, the results are closer to reality, and more realistic and reliable. Particularly, when HD0= 1, the results of WQA-HDE are consistent with the single factor assessment method, both methods are subject to the most stringent “one vote veto” judgment condition. So, WQA-HDE is a composite method that combines the single factor assessment and comprehensive assessment. This research not only broadens the research field of theoretical method system of harmony theory but also promotes the unity of water quality assessment method and can be used for reference in other comprehensive assessment.